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Sommaires des Revues - Word Neurosurgery

World Neurosurgery

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Preoperative Embolization of Meningiomas: Differences in surgical operability and histopathological changes between Embosphere® and NBCA  Voir?

This study aimed to examine if there is a difference in the difficulty of extirpation after use of Embosphere® versus n-butyl 2-cyanoacrylate (NBCA) for the embolization of meningiomas.
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Serious concomitant injuries in pediatric patients with severe traumatic brain injury  Voir?

Severe traumatic brain injury (TBI) is a leading cause of death among children. Although several studies have reported the negative effects of concomitant injuries on mortality in adults with TBI, their effect on pediatric patients remains unclear. Our objective was to describe the effect of serious concomitant injuries on outcomes, in pediatric patients with severe TBI.

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Percutaneous Full-endoscopic Anterior Transcorporeal Procedure for Cervical Disc Herniation: A Novel Procedure and Early Follow-up Study  Voir?

To describe the surgical technique of percutaneous full-endoscopic anterior transcorporeal cervical discectomy (PEATCD) in detail and report the clinical outcomes and radiological changes in patients with cervical intervertebral disc herniation (CIVDH).
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Design and application of a novel patient-specific 3D printed drill navigational guiding template in atlantoaxial pedicle screw placement  Voir?

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Rationale behind the use of double layer poly propylene patch (G-patch) dural substitute during decompressive craniectomy as an adhesion preventive material for subsequent cranioplasty with special reference to flap elevation time  Voir?

Dural substitutes are used in decompressive craniectomy (DC) in order to prevent adhesions during subsequent cranioplasty. Current literature attributes them to the reduced blood loss and reduction in operative time of cranioplasty. The use of double layer substitute has rarely been documented. We decided to study the use of double layer G-patch as a dural substitute in DC and evaluate its outcome during subsequent cranioplasty with special focus on flap elevation time and blood loss during cranioplasty.

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An Amendment to the Neidre and Macnab Classification System for Lumbosacral Nerve Root Anomaly and Its Implication in Percutaneous Endoscopic Lumbar Discectomy  Voir?

Lumbar disc herniation complicated with nerve root anomaly presents great challenges to diagnosis and treatment, improper selection of surgical procedures may cause inferior outcomes and neurological injury.
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Delayed occurrence of diabetes insipidus following transsphenoidal surgery with radiological evaluation of the pituitary stalk on magnetic resonance imaging  Voir?

Diabetes insipidus (DI) is a major complication of transsphenoidal surgery (TSS). DI usually occurs within a couple of days after TSS. Delayed occurrence of postoperative DI is rarely observed and its developing mechanisms remain unknown. Methods Six patients were identified as having postoperative delayed DI, which was defined as DI that first occurred two or more weeks after TSS. They consisted of one male and five females, and their mean age was 38.3 (range: 10-76) years. Five patients were histologically diagnosed with Rathke cleft cyst (RCC), while one was RCC co-existed with prolactin-secreting adenoma.

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Bone Morphogenetic Proteins Usage in Anterior Lumbar Inter-Body Fusion: What Else Can Go Wrong?  Voir?

Bone Morphogenetic Protein (BMP) graft showed promising outcome during early phases of its use. However unreported adverse events and off label use shattered its safe profile and raised concerns regarding its indication. In 2008, the Food and Drug Administration (FDA) prohibited its use in anterior cervical spine procedures due to possibility of edema, hematoma and need of intubation. At the molecular level, BMP act as multifactorial growth factors playing a role in cartilage, heart, and bone formation.

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Diagnostic performance of increased signal intensity within the resection cavity on fluid-attenuated inversion recovery sequences for detection of progression in patients with glioma  Voir?

The aim of this study was to systematically evaluate the diagnostic performance of increased signal intensity within the resection cavity on fluid-attenuated inversion recovery (FLAIR) sequences for detection of progression in patients with glioma through performing a meta-analysis.
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Surgical management of Ruptured Isolated Aneurysm of the Artery of Adamkiewicz: An Interesting report and overview of the Literature  Voir?

Spinal subarachnoid hemorrhage (SAH) due to rupture of an isolated spinal aneurysm is extremely rare. Patients usually present with symptoms and signs resulting from spinal cord compression. No standard guidelines are available for the treatment of this condition.
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Building Healthcare Capacity in Pediatric Neurosurgery and Psychiatry in a Post-Soviet System: Ukraine  Voir?

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Cavernous Sinus Hemangioma: A Rare Vascular Tumor of the Cavernous Sinus  Voir?

Cavernous sinus hemangiomas (CSH) are rare vascular tumors, which are infrequently encountered in everyday neurosurgical practice. Attempted resection of this lesion without preoperative planning carries a high risk for significant blood loss and cranial neuropathies. Radiation treatments can provide an alternative and safe treatment modality for these lesions. Therefore, an increased awareness is warranted for their clinical suspicion. We reported on a patient that presented with visual deficits and a mass in the sellar, suprasellar and middle fossa regions.

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Post-Operative Stridor and Acute Respiratory Failure after Parkinson’s disease Deep Brain Stimulator Placement - A Case Report and Review of Literature  Voir?

Parkinson’s disease (PD), a neurodegenerative disorder characterized by loss of dopaminergic neurons in the substantia nigra of the midbrain is commonly thought of as a motion disorder, but it can have significant effect on the respiratory system. Respiratory failure is the most common cause of death in these patients, but it can also affect laryngeal function causing dysphonia, dysphagia, and dysarthric speech.. Acute upper airway obstruction is a very rare finding in PD, especially in the perioperative settings.

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An unusual case of ureteral perforation in minimally invasive pedicle screw instrumentation and review of the literature  Voir?

and Importance: Injury of the ureter is a potentially devastating complication most often reported in gynecologic, colorectal, vascular pelvic surgery or endoscopic procedures for ureteric pathologies. We report a rare case of ureteral rupture occurring as a complication of percutaneous pedicle screw placement.

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Comparison of Outcomes in Three Surgical Approaches for Dystrophic Cervical Kyphosis in Patients with Neurofibromatosis Type Ⅰ  Voir?

This study compares the outcomes of anterior-only (AO), posterior-only (PO), and anteroposterior (AP) surgical approaches for the treatment of dystrophic cervical kyphosis in patients with neurofibromatosis type I (NF1).
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Hemangioblastomas of the posterior cranial fossa in adults: demographics, clinical, morphological, pathological, surgical features and outcomes. A systematic review  Voir?

Posterior cranial fossa (PCF) hemangioblastomas are benign, highly vascularized, and well-differentiated tumors with well-described histopathologic features. Although relatively rare, this tumor is the most prevalent primary tumor of the cerebellum in adults.
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Heat generation during bony decompression of lumbar spinal stenosis using high-speed diamond drill with or without automated irrigation and ultrasonic bone cutting knife  Voir?

The main objective of the present prospective randomized single-blinded controlled study was to measure heat during bony decompression of lumbar spinal stenosis with high-speed drills, and ultrasonic bone cutting knife.
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The outcome of severe traumatic brain injury in Latin America  Voir?

Traumatic brain injury (TBI) disproportionately affects lower and middle income countries (LMIC). The factors influencing outcomes in LMIC have not been examined as rigorously as in higher-income countries (HIC). This study was conducted to examine clinical and demographic factors influencing TBI outcomes in Latin American LMIC. Data were prospectively collected during a randomized trial of intracranial pressure monitoring in severe TBI and a companion observational study. Participants were aged ≥ 13 years and admitted to study hospitals with GCS ≤ 8.

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Parahippocampectomy as a new surgical approach to mesial temporal lobe epilepsy due to hippocampal sclerosis: a pilot randomized comparative clinical trial  Voir?

The parahippocampal gyrus (PHG) plays an important role in the epileptogenic pathways of mTLE-HS, it´s resection could be preventing epileptic seizures with less complications. Evaluate the initial efficacy and safety of anterior temporal lobectomy (ATL), selective amygdalo-hipppocampectomy (SAH) and parahippocampectomy (PHC) surgical approaches in mTLE-HS.

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Predictors of readmissions and reoperations related to venous thromboembolic events after spine surgery: a single-institution experience with 6,869 patients  Voir?

Readmission and reoperation are used as hospital and surgeon quality metrics. Venous thromboembolic events (VTE), including deep vein thrombosis (DVT) and pulmonary embolism (PE), are a major cause of readmission, morbidity, mortality, after spine surgery. Specific procedural, perioperative, and patient characteristics may be associated with these outcomes.

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Evaluation of the measuring methods of the spinal canal occupation rate in thoracic ossification of ligamentum flavum  Voir?

The degree of hypertrophy of thoracic ossification of ligamentum flavum (TOLF) is related to the severity of the myelopathy. There is no uniform measuring method to calculate the spinal canal occupation ratio (COR) of TOLF simply and effectively. The study was to determine an appropriate measuring method to calculate the COR of TOLF.

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Severe of Facial Fracture is related to Severe Traumatic Brain Injury  Voir?

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Adult Spinal Ependymomas: An Epidemiological Study  Voir?

In adults, spinal ependymomas constitute only 3-6% of central nervous system tumors. Due to their rarity and poor prognosis, large population-based studies are needed to assess the epidemiology and survival risk factors associated with these tumors in the hope of improving outcome. The authors undertook this retrospective study to explore factors that may influence survival in adult patients with spinal ependymomas.

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Gamma Knife stereotactic radiosurgery for non-vestibular cranial nerve schwannomas  Voir?

Non-vestibular cranial schwannomas represent a rare type of benign intracranial tumor. Few studies have evaluated the use of stereotactic radiosurgery (SRS) as a primary management option for these lesions. We therefore performed a retrospective review of our institution’s experience focussing on efficacy with regards to tumor control and clinical symptom stabilization, as well as treatment safety.

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Combined spinal arteriovenous malformation and spinal dysraphism  Voir?

Spinal vascular malformations as a group are rare entities and coexistence of spinal arteriovenous malformation in or around the spinal dysraphism is extremely rare.
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Case Series of Rare Thymoma Metastases to the Spine and Complete Literature Review  Voir?

We report a series of three cases of metastatic thymoma to the spine with spinal cord compression. An extensive literature review of thymic metastases to the spine was completed in order to provide a comprehensive appraisal of current prognostic indicators and potential treatment algorithms to help guide clinicians in treatment management.

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Custom-made titanium 3D printed interbody cages for treatment of osteoporotic fracture related spinal deformity  Voir?

Advances in minimally invasive interbody fusion have greatly enhanced surgeons’ capability to correct adult spinal deformity with reduced morbidity. However, the feasibility of such approaches is limited in patients with previous osteoporotic fractures as the resultant vertebral deformity renders the endplate geometry incongruous with conventional interbody implants. Current 3D printing technology offers a novel solution by fabricating custom-made implants tailored to individual anatomy. We present the results of a patient with osteoporotic lumbar fractures treated by such technology.

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Spontaneous spinal arthordesis in Stand-Alone Percutaneous Pedicle Screw Fixation without in situ fusion in patients with lumbar segmental instability: long term clinical, radiologic and functional outcome.  Voir?

No study to date has established how commonly spontaneous fusion occurs after stand-alone percutaneous pedicle screw fixation in adult population.
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Synchronous Central Nervous System Atypical Teratoid/ Rhabdoid Tumor and Malignant Rhabdoid Tumor of the Kidney: Case report of a Long-Term Survivor and Review of the Literature  Voir?

Atypical teratoid/rhabdoid tumor (AT/RT) of the central nervous system (CNS) with synchronous or metachronous extra-CNS disease is a rare childhood malignancy with a dismal prognosis.
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Effect of smoking status on successful arthrodesis, clinical outcome and complications after anterior lumbar interbody fusion (ALIF)  Voir?

Anterior lumbar interbody fusion (ALIF) is a surgical technique indicated for the treatment of several lumbar pathologies. Smoking has been suggested as a possible cause of reduced fusion rates following ALIF, though the literature regarding the impact of smoking status on lumbar spine surgery is not well established. This study aims to assess the impact of perioperative smoking status on the rates of perioperative complications, fusion and adverse clinical outcomes in patients undergoing ALIF surgery.

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Lumbar microdiscectomy in obese patients: A multicenter observational study  Voir?

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Efficacy of reinforced restriction of physical activity on chronic subdural hematoma: a prospective pilot study  Voir?

Chronic subdural hematoma (CSDH) is a common entity in neurosurgical practice. However, as a result of the high rate in recurrence, morbidity, and mortaliy for surgical management, conservative management of CSDH is emerging as a new treatment strategy. Head trauma is a known risk factor of CSDH and plays as an initiator in the genesis of CSDH. We hypothesized that physical activity might also play an important role in the progression of an asymptomatic CSDH.

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Risk factors analysis for foot drop associated with lumbar disc herniation: an analysis of 236 patients  Voir?

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Surgical treatment of thoracic spinal tuberculosis -A Multi-center retrospective study  Voir?

The aim present multicenter retrospective study is to assess safety and effectiveness of different surgery strategy in thoracic tuberculosis, and to provide a reference for surgical treatment of thoracic tuberculosis.
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Endoscopic Transseptal Approach with Posterior Nasal Spine removal: a wide surgical corridor to the Craniovertebral Junction and Odontoid. Technical note and case series  Voir?

Transnasal approach to lesions involving the craniovertebral junction represents a technical challenge because of limited inferior exposure. The authors describe the endoscopic transseptal approach (ETsA) with posterior nasal spine (PNS) removal; this technique can create a wide exposition of the craniovertebral junction increasing the caudal exposure.

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Spontaneous acute arterial subdural haematoma  Voir?

Spontaneous acute arterial subdural haematoma (SDH) is a rare entity caused by haemorrhage from a cortical perisylvian artery without a known precipitant.
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Magnetic resonance imaging undetectable epiduroscopic hotspot in chronic discogenic back pain- Does sinuvertebral neuropathy actually exists?  Voir?

The causes of chronic discogenic back pain have not yet been clearly identified. Neural ingrowth around the annulus is widely considered to be one of the possible cause. However, neuropathy around the annulus has yet to be observed visually. We report a case of a hotspot that was observed in an epiduroscopic view, but not in imaging findings.

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Long-term remission of recurrent brainstem pilocytic astrocytoma with neuraxis dissemination using recombinant human endostatin after failure of vincristine and carboplatin: A case report  Voir?

There is no standard salvage treatment for recurrent and/or unresectable brainstem low-grade gliomas after failure from carboplatin and vincristine chemotherapy. Recombinant human endostatin (rh-ES), a mild inhibitor of angiogenesis, has been used for treating lung cancer. But so far as we know, there is no experience for brainstem gliomas.

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Lateral Ventricular Volume Asymmetry Predicts Poor Outcome After Spontaneous Intracerebral Hemorrhage  Voir?

Midline shift (MLS) was a known predictor for prognosis after spontaneous intracerebral hemorrhage (ICH), while it’s secondary to lateral ventricular compression. In this study, we investigated whether lateral ventricular volume (LVV) asymmetry caused by ventricular compression was associated with poor outcome of ICH independently.

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Cervical rib prevalence and its association with Thoracic Outlet Syndrome: a meta-analysis of 141 studies with surgical considerations  Voir?

Cervical ribs (CR) are supernumerary ribs that arise from the seventh cervical vertebra. In the presence of CR, the boundaries of the interscalene triangle can be further constricted and result in neurovascular compression and Thoracic Outlet Syndrome (TOS). The aim of our study was to provide a comprehensive evidence-based assessment of CR prevalence and their association with TOS as well as surgical approach to excision of CR and surgical patients’ characteristics.

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Microvascular decompression for treatment of trigeminal neuralgia: factors that predict complete pain relief and study of efficacy and safety in older patients  Voir?

Microvascular decompression (MVD) is an effective method for directly treating the etiology of trigeminal neuralgia (TGN). This study aims to investigate the factors that predict complete pain relief after MVD for treatment of TGN, and to study efficacy and safety in older patients.
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Determining the lower limit of cerebral perfusion pressure in patients undergoing decompressive craniectomy following traumatic brain injury  Voir?

In the severe traumatic brain injured (TBI) patient, maintaining the systolic blood pressure (BP) over 90 mmHg, the intracranial pressure (ICP) under 20 mmHg and the cerebral perfusion pressure (CPP) greater than 60∼70 mmHg is recommended to improve clinical outcomes. But a recommended CPP value for patients treated with decompression craniectomy (DC) is not clearly studied. The authors tried to determine whether the targeted CPP can be lowered in patients with DC.

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Rosiglitazone infusion therapy following minimally invasive surgery for ICH evacuation decreased perihematomal glutamate content as well as BBB permeability in rabbits  Voir?

To observe the effects of Rosiglitazone infusion therapy on perihematomal PPARγ, glutamate level, BBB permeability and brain edema.
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Long-term Outcome of Repeat Microvascular Decompression for Hemifacial Spasm  Voir?

Although repeat microvascular decompression (MVD) for hemifacial spasm (HFS) in patients with failed prior MVD is potentially curative, little is known about the long-term results of repeat MVD. We aimed to evaluate the long-term outcomes and complications after repeat MVD for HFS.
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Development of a Severe TBI Consensus-Based Treatment Protocol Conference in Latin America  Voir?

Severe TBI (sTBI) is a significant global health problem disproportionately affecting Low and Middle Income Countries (LMICs). Management of intracranial hypertension in sTBI is crucial to survival and optimal recovery. High Income Country practitioners routinely use Intracranial Pressure (ICP) monitors although their utility has been questioned. ICP monitors are usually unavailable in LMICs. No consensus based/tested protocols or literature exists for sTBI treatment without ICP monitoring.

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Salvage therapy for brain arteriovenous malformations after failure of gamma knife stereotactic radiosurgery  Voir?

The aim of this study was to investigate delayed complications in brain arteriovenous malformation (BAVM) patients after gamma knife stereotactic radiosurgery (GKRS) and to present the salvage therapy experiences of BAVM patients with radiation-induced changes (RICs) or intracranial hemorrhage (ICH).

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Virtual reality based simulators for cranial tumor surgery: A systematic review  Voir?

Virtual reality (VR) simulators have become useful tools in various fields of medicine. Prominent uses of VR technologies include assessment of physician skills and for pre-surgical planning. VR has demonstrated effectiveness in multiple surgical specialties, yet its use in the field of neurosurgery remains limited to date.

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Evaluation of patency after vascular anastomosis using quantitative evaluation of visualization time in indocyanine green video angiography  Voir?

In vascular reconstructive surgery, intraoperative confirmation of the patency is performed by angiography, Doppler, or indocyanine videoangiography, but it is sometimes insufficient.
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Self-inflicted Dry Wall Screws in the Sagittal Sinus  Voir?

A 30-year-old right hand male with a history of schizophrenia presented with two self-inflicted drywall screws in the skull. The patient was sleepy but easily arousable with blood tests showing he had taken methamphetamines. Computed Tomography (CT) and Computed Tomography angiography (CTA) of the head showed the frontal screw abutted left of the superior sagittal sinus while the posterior screw went through the superior sagittal sinus with no extravasation of contrast at either site. Both screws were removed with exposure of the sagittal sinus using “U” shape craniectomies.

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Utility of Retrograde Amnesia Assessment alone, compared to Anterograde Amnesia Assessment, in determining Recovery after Traumatic Brain injury. Prospective Cohort study  Voir?

Post-traumatic amnesia (PTA) after traumatic brain injury (TBI) comprises anterograde amnesia (AA), disorientation and retrograde amnesia (RA). However, RA is often neither assessed nor emphasized. A recent study demonstrated that, whilst AA and disorientation were both present in non-TBI in-patients uniformly taking opioids, RA was absent. This suggests potentially significant utility with RA-assessment alone, since opioids are commonly prescribed post-TBI.

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Collet-Sicard Syndrome Attributable to Extramedullary Plasmacytoma of the Jugular Foramen  Voir?

Collet-Sicard syndrome is a rare manifestation of skull base disease involving the jugular and hypoglossal foramina. We report the first case of Collet-Sicard attributable to extramedullary plasmacytoma-multiple myeloma (EP-MM), as well as the second case of EP-MM precipitating a jugular foramen syndrome (JFS)-spectrum disorder.

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Microsurgical Clipping of a Giant Middle Cerebral Artery Aneurysm with Successful Postoperative Endovascular Mechanical Thrombectomy for Treatment of Emergent Large Vessel Occlusion  Voir?

Giant intracranial aneurysms (>25mm) are uncommon. These lesions typically manifest clinically due to mass effect, acute hemorrhage, or thromboembolic events. To minimize the chances of poor clinical outcome, detailed operative planning and fully integrated considerations and collaboration among neurosurgical and endovascular techniques are essential prior to microsurgical clipping of ruptured giant aneurysms.

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Acute Bilateral Isolated Foot Drop: Changing the Paradigm in Management of Degenerative Spine Surgery with Percutaneous Endoscopy  Voir?

Acute bilateral isolated foot drop due to Lumbar disc prolapse with canal stenosis is very rare with only three cases reported in literature. Our patient was managed using the percutaneous full endoscopic technique. This is mainly to highlight the ease of access and patient outcome with pre and postoperative images to support our minimally invasive treatment for this rare condition.

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Subtemporal ‘interdural’ surgical approach for ‘giant’ facial nerve neurinomas  Voir?

The management issues of 15 cases of giant and dumbbell shaped facial neurinomas that extended both in the middle and in the posterior cranial fossa is reported.
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Risk factors and microbiology of meningitis and/or bacteremia after transsphenoidal surgery for pituitary adenoma  Voir?

To investigate the incidence, bacteriological features, and risk factors of post- transsphenoidal surgery (TSS) meningitis and/or bacteremia.
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Postoperative neurological outcome in patients with pituitary apoplexy after transsphenoidal surgery  Voir?

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Clinical Application of an Open Source 3D Volume Rendering Software to Neurosurgical Approaches  Voir?

Preoperative recognition of the anatomic individualities of each patient can help in achieving more precise and less invasive approaches. Moreover, this may help with anticipating potential complications and intraoperative difficulties. To describe the use, accuracy, and precision of a free tool for planning microsurgical approaches using three-dimensional reconstructions from magnetic resonance images.

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Health-related quality of life and Posttraumatic growth in low-grade gliomas in China: A prospective study  Voir?

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Pial arteriovenous fistula: a brief review and report of 14 surgically treated cases  Voir?

The authors report their successful experience of treating 14 cases of pial arteriovenous fistula (PAVF) by direct surgery.
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Prognostic role of microembolic signals after endovascular treatment in anterior circulation ischemic stroke patients  Voir?

Endovascular treatment (EVT) is an effective therapy for acute ischemic stroke due to large artery occlusion (LAO) of the anterior circulation. Yet, some patients do not experience clinical improvement regardless of successful recanalization and reperfusion. The reasons are unknown but one possible explanation is micro-vessel obstruction downstream.

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Evaluation of enterprise stent assisted coiling and telescoping stents technique as treatment of supraclinoid blister aneurysms of internal carotid artery  Voir?

and Purpose: Supraclinoid blister aneurysms (BAs) of the internal carotid artery (ICA) are uncommon and deadly, and appropriate treatment is controversial. Endovascular reconstruction may allow treatment through aneurysm isolation. We report a single institution experience of Enterprise stent assisted coiling (ESAC) in the treatment of BAs to appraise safety and efficacy.

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Should we expect delayed relief or early re-operate on those hemifacial spasm patients without efficacy following microvascular decompression?  Voir?

Although microvascular decompression (MVD) has been widely accepted as an effective remedy for treatment of hemifacial spasm (HFS), some patients may experience delayed relief instead of immediate improvement after the surgery. Hence, the necessity or occasion of repeated MVD has been controversial to date. Therefore, it is necessary to conduct a study with emphasis on those unrelieved patients.

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Oncogenic viruses in Skull Base Chordomas.  Voir?

Chordomas are rare tumors assumed to derive from notochordal remnants. We believe that a molecular switch is responsible for their malignant behaviour. However, the involvement of oncogenic viruses has not been studied. Thus, in the present study we investigate the presence of oncogenic viruses in chordomas.

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Early and Late Post-Traumatic Epilepsy in the Setting of Traumatic Brain Injury: A Review of Anti-Epileptic Management  Voir?

Moderate to severe traumatic brain injury confers increased risk of early and late post-traumatic seizures (PTS). Early PTS are diagnosed when seizures develop within 7 days following injury, whereas initial seizures in late PTS occur later. Traditionally, patients have been treated with phenytoin (PHT) to prevent early PTS, and more recently with levetiracetam (LEV). Various regimens have been tried in patients to prevent late PTS with variable success. In this meta-analysis, we assessed and compared effectiveness of these drugs on early and late PTS prevention.

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Web Vessels: Literature review and Neurointerventional Management  Voir?

The aim of this study is to describe twenty-seven patients with thirty-two WVs from our practice as well as provide a review of the literature regarding imaging diagnostics, clinical presentation and treatment of these lesions.
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Treatment of brain AVM with hemodynamic aneurysms: a consecutive series of 131 cases  Voir?

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Effectiveness of Ipsilateral Stroke Prevention Between Conservative Management and Indirect Revascularization for Moyamoya Disease (MMD) in a North American Cohort  Voir?

Few reports compare surgical intervention with conservative treatment for moyamoya disease (MMD) in non-Asian cohorts. This study describes the effectiveness of follow-up stroke prevention by indirect revascularization relative to conservative management in a Northeast United States study population.

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The Influence of Sedation Level Guided by Bispectral Index on Therapeutic Effects for Severe Traumatic Brain Injury Patients  Voir?

Sedation therapy is vital for treating severe traumatic brain injury(TBI). Yet types of sedation assessment tools and sedation levels that are suitable for sedation treatment have not been investigated.
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Deep Brain Stimulation for Essential Tremor: a Comparison of Targets  Voir?

Deep Brain Stimulation (DBS) is an established treatment for refractory Essential Tremor (ET). Initially, the target of choice was the thalamic Ventral Inter Mediate nucleus (VIM). However, the Zona Incerta (ZI) has been put forward as a superior target. Both targets are considered safe and effective, but a direct comparison between these targets is lacking.

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Coagulation Factor Hyperfunction After Subarachnoid Hemorrhage Induces Deep Venous Thrombosis  Voir?

To explore the change of coagulation function and associated potential mechanism, the relationship between coagulation disorders and deep venous thrombosis (DVT) after subarachnoid hemorrhage (SAH) within 3 days of onset.
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Atypical and Malignant Meningiomas: Neuro-oncological Management in a Brazilian cohort  Voir?

To analyze grade II and III meningioma patients´ surgical and oncological managements in a follow-up of 15 years to get an overview of these patients outcome in a Brazilian cohort.
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The incidence and risk factors of in-stent restenosis for vertebrobasilar artery stenting  Voir?

In-stent restenosis (ISR) remains a challenge for vertebrobasilar artery stenting (VBAS). We aimed to investigate the incidence and risk factors of ISR.
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The enigma of orbital compartment syndrome after lumbar spine surgery in the prone position: Case report and literature review  Voir?

Perioperative visual loss (POVL) after spinal surgery is a devastating complication for both the patient and the surgical team. Two major causes are known: ischemic optic neuropathy (ION) and central retinal artery occlusion (CRAO). The traditional understanding of CRAO has been consistently related to the occurrence of periocular trauma and signs of increased intraorbital pressure in addition to visual loss. Such orbital signs are, however, not a feature of any common POVL syndrome. A 55-year-old woman underwent prolonged lumbar decompression and fusion for spinal stenosis under general anesthesia in the prone position.

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One-level or multilevel interbody fusion for multilevel lumbar degenerative diseases: a prospective, randomized and control study with a 4-year follow-up  Voir?

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Association of SOX17 Gene Polymorphisms and Intracranial Aneurysm: A Case-control Study and Meta-analysis  Voir?

Genome-wide association studies have revealed an association between SOX17 gene and intracranial aneurysm (IA) formation. However, their results were mainly derived from the European and Japanese populations. We investigated the association between SOX17 gene polymorphisms and IA in a homogeneous Korean population. In addition, we performed a meta-analysis to assess these results in East-Asian populations.

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An optic nerve meningioma mimicking a cavernous hemangioma  Voir?

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Intracranial Erdheim-Chester Disease mimicking parafalcine meningioma: report of two cases and review of the literature  Voir?

Erdheim-Chester disease (ECD) is a rare, non-Langerhans cell histiocytosis that typically occurs in middle-aged patients. It is usually characterized by multifocal osteosclerotic lesions of the long-bones, however many cases have extraskeletal involvement. Central nervous system (CNS) involvement is common, but isolated CNS involvement at presentation has rarely been reported. Here we report two cases of dural-based ECD mimicking meningioma on imaging with no other identified sites of disease.

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Surgery for recurrent high grade glioma after treatment with bevacizumab  Voir?

Bevacizumab (BVZ) is an FDA-approved anti-angiogenic agent used for treatment of recurrent glioblastoma. Complications related to impaired healing may adversely affect patients resected for recurrent high-grade glioma (HGG) following treatment with BVZ.
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Cerebellar Mutism Syndrome and other complications following surgery in the posterior fossa in adults: A prospective study  Voir?

The Cerebellar Mutism Syndrome (CMS) is rarely described in adults; however data on self-assessed linguistic complications after posterior fossa surgery do not exist.
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Prevalence of Surgically Untreated Face, Head, and Neck Conditions in Uganda: a Cross-Sectional Nationwide Household Survey  Voir?

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Quantitative Volumetric Analysis Following Magnetic Resonance-Guided Laser Interstitial Thermal Ablation of Cerebellar Metastases  Voir?

Treating recurrent posterior fossa metastases after prior radiation therapy and surgical resection remains challenging. Magnetic resonance laser-induced thermal therapy (MR-LITT) is a promising treatment for recurrent lesions, but data regarding safety, efficacy, and post-ablational volume change in the posterior fossa is lacking.

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The pCONus2 neck bridging device – early clinical experience and immediate angiographic results  Voir?

Wide necked aneurysms are challenging to treat for the interventional neuroradiologist. Recently, numerous devices dedicated to the treatment of these aneurysms have become available. We present our early experience of the pCONus2 and present the technical success rate, clinical outcome and immediate angiographic occlusion rates.

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Transvenous Embolization Of Ethmoidal Dural Arteriovenous Fistulas: Case Series And Review Of The Literature  Voir?

Ethmoidal dural arterio-venous fistulas (DAVFs) are rare and aggressive lesions, usually treated by microsurgical disconnection of the fistula. Transarterial embolization is rarely performed because of the risk of retinal ischemia. Transvenous embolization has been reported as an alternative approach. We describe our experience in transvenous embolization of ethmoidal DAVFs and review the literature focusing on technical and safety aspects of the procedure.

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Neurological Deterioration in Patients with Moyamoya Disease during Pregnancy, Delivery and Puerperium  Voir?

We reviewed our clinical experience of patients with moyamoya disease (MMD) who gave birth and assessed characteristics of those experiencing neurological deterioration.
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Rupture resemblance models may correlate to growth rates of intracranial aneurysms: preliminary results  Voir?

Treatment of intracranial aneurysms (IAs) is largely guided by IA size and growth. Preliminary investigations have found a relationship between clinical factors and growth; yet, the relationship between morphologic and hemodynamic risk prediction models to IA growth is unknown.
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Long-term Outcome after Carotid Endarterectomy in Patients with Ischemic Heart Disease  Voir?

The long-term outcome after carotid endarterectomy (CEA) is determined by many confounding factors. Ischemic heart disease (IHD) is linked to atherosclerotic stroke, and it is a very important cause of death during the perioperative and follow-up periods after CEA. We aimed to investigate mortality and long-term major adverse cardiovascular events (MACEs) in IHD patients compared with non-IHD patients.

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A simple new screw insertion technique without extraction for broken pedicle screws  Voir?

Spinal transpedicular screw fixation is widely performed. Broken pedicle screw rates range from 3 to 7.1%. Several techniques have been described for extraction of broken pedicle screws. However, most of these techniques require special instruments. We describe a simple, modified technique for management of broken pedicle screws without extraction. No special instruments or drilling in an adjacent pedicle are required.

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Changes in Blood Flow Velocity of the Middle Cerebral Artery after Carotid Endarterectomy: Daily Assessment with Transcranial Color-Coded Sonography  Voir?

Hyperperfusion syndrome (HPS) is a well-known complication of carotid endarterectomy (CEA) warranting repeatable inexpensive monitoring. Transcranial color-coded sonography (TCCS) may provide a potential modality for such monitoring, but little is known about TCCS trends after CEA.
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Expression of CD133 as a putative prognostic biomarker to predict intracranial dissemination of primary spinal cord astrocytoma  Voir?

Spinal cord astrocytoma with intracranial dissemination carries a poor prognosis. The mechanisms leading to dissemination remain to be elucidated. A stem cell marker, CD133, was reported to predict recurrence patterns in intracranial glioblastoma. We evaluated the significance of CD133 as a putative prognostic biomarker to predict intracranial dissemination in spinal cord astrocytoma.

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Surgical Orthopedics in a Spondylometaphyseal Dysplastic Patient: A Case Report  Voir?

Spondylometaphyseal dysplasia (SMD) is a rare disease characterized by vertebral and metaphyseal abnormalities. The treatment of SMD spinal deformities remains a challenge for spinal surgeons.
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The patient size setting: A novel dose reduction strategy in cerebral endovascular neurosurgery using biplane fluoroscopy  Voir?

In some fluoroscopy machines, the dose-rate output of the fluoroscope is tied to a selectable patient size. While patient size may play a significant role in visceral or cardiac procedures, head morphology is less variable, and high dose outputs may not be necessary even in very obese patients.
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Effectiveness Of Gamma Knife Radiosurgery In Improving Psychophysical Performance And Patient’s Quality Of Life In Idiopathic Trigeminal Neuralgia  Voir?

To assess effectiveness of Gamma Knife Radiosurgery (GKRS) in improving quality of life (QoL) in patients with idiopathic trigeminal neuralgia (TN).
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In Situ Side-to-Side Anastomosis: Surgical Technique and Complication Avoidance  Voir?

In situ side-to-side (STS) anastomosis is a unique technique used for intracranial artery–intracranial artery revascularization. During a seven-year period, seven STS anastomoses were performed for anterior cerebral artery aneurysms in six patients and postero-inferior cerebellar artery aneurysm in one patient. We describe a step-by-step guide for suturing techniques from arteriotomy to vessel wall sutures based on clinical experiences, with detailed illustrations. Technical considerations in each stage are also discussed.

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Angiographic appearance of a pulsatile blister aneurysm  Voir?

A male was detected subarachnoid hemorrhage admitted to our center. During the first angiography, a pulsatile blister aneurysm was revealed and the aneurysm was also detected enlargement during the surveillance angiography. The patient accepted balloon-assisted clipping successfully. Blister aneurysms are at a high risk of rupture, high risk of regrowth and need for multimodal management.

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Repair of cerebrospinal fluid leakage using a transfrontal, radial adipofascial flap an individual approach supported by 3d-printing for surgical planning.  Voir?

Leakage of cerebrospinal fluid (CSF) due to large prolactinomas represents a complex issue. Due to limited anatomical space, often multiple leakage sites and scarce locally available tissue for repair, surgical possibilities are limited. We report an initial case of using a radial fasciocutaneous flap applied sub-frontally to cover a large skull base defect, supported by preoperative 3D-printing for surgical planning.

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Rare Concurrent Retroclival and Pan-Spinal Subdural Empyema: Review of Literature with an Uncommon Illustrative Case  Voir?

Subdural empyema can present as a spinal subdural empyema (SSE) or a cranial subdural empyema (CSE). Though they differ somewhat in epidemiology, etiology, pathophysiology, and symptomatology and occur separately, they rarely manifest together. The aim of this article is to review the literature concerning the clinical presentation, clinical course and treatment options for managing concurrently-occurring SSE and CSE.

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Hybrid Recanalization for symptomatic long-segmental occlusion post vertebral artery stenting  Voir?

Hybrid operation combining endovascular and open surgery procedure is supposed to achieve the recanalization for post-stenting long-segmental occlusion of VA ostium simultaneously.
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Paradoxical Distraction With Upright Position After Halo Fixation in Two Patients with Atlanto-Occipital Dislocation  Voir?

Atlanto-occipital dislocation (AOD) is the most uncommon form of traumatic cervical spine injury.1 The majority of patients die before reaching higher-level care, and only a small percentage of patients with AOD survive the initial injury after receiving tertiary care.2 As such, there is a paucity of evidence-based management guidelines for treating this condition. Halo vest fixation has been a proposed method for interim stability while these patients undergo medical optimization for surgical intervention.

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Predicting resident performance from pre-residency factors: a systematic review and applicability to neurosurgical training  Voir?

Neurosurgical educators strive to identify the best applicants, yet formal study of resident selection has proven difficult. We conducted a systematic review to answer the following question: what objective and subjective pre-residency factors predict resident success?
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Utility of the lateral base dural tacking method in cord tumor surgery performed via unilateral hemilaminectomy: A comparison of dural window widths  Voir?

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Association of hospital teaching status with neurosurgical outcomes: an instrumental variable analysis  Voir?

The interpretation of the results of prior studies on the association of hospital teaching status with surgical outcomes is limited by selection bias. We investigated whether undergoing surgical operations in teaching hospitals is associated with improved outcomes.
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A Randomized Controlled Trial of Low Dose Tranexamic Acid versus Placebo to Reduce Red Blood Cell Transfusion during Complex Multilevel Spine Fusion Surgery  Voir?

Multilevel spine fusion surgery for adult deformity correction is associated with significant blood loss and coagulopathy. Tranexamic acid reduces blood loss in high risk surgery, but the efficacy of a low dose regimen is unknown.
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Borderline Alberta Stroke Programme Early CT Score Patients with Acute Ischemic Stroke Due to Large Vessel Occlusion May Find Benefit with Endovascular Thrombectomy  Voir?

Selection of patients with acute ischemic stroke for endovascular thrombectomy (EVT) is complex and time-critical. Benefits of EVT are well established for patients with small core infarcts. The aim of this study was to compare clinical outcomes of EVT in patients with larger established infarcts (Alberta Stroke Programme Early CT Score [ASPECTS] ≤6) with patients with smaller infarcts (ASPECTS 7–10).

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Surgical Management and Long-Term Seizure Outcome After Surgery for Temporal Lobe Epilepsy Associated with Cerebral Cavernous Malformations  Voir?

Operative strategies for cerebral cavernous malformation (CCM)-associated temporal lobe epilepsy and timing of surgical intervention continue to be debated. This study aimed to establish an algorithm to evaluate the efficacy of surgical intervention strategies, to maximize positive surgical outcomes and minimize postsurgical neurologic deficits.

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Flat-Detector Computed Tomography for Evaluation of Intracerebral Vasculature for Planning of Stereoelectroencephalography Electrode Implantation  Voir?

Stereoelectroencephalography (sEEG) requires extensive preoperative planning to optimize placement of electrodes and limit the potential for complications. Flat-detector computed tomography (FD-CT) has previously been used for perioperative vascular imaging to guide the treatment of vascular lesions. This imaging modality provides a detailed depiction of cerebrovascular and bony cranial anatomy, which can be used to guide intracranial electrode implantation. We have developed a novel method to improve preoperative planning for sEEG electrode implantation and limit the potential for postoperative complications by using FD-CT imaging merged with preoperative magnetic resonance imaging (MRI).

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Gamma Knife Surgery for Recurrent Trigeminal Neuralgia in Cases with Previous Microvascular Decompression  Voir?

Microvascular decompression (MVD) and Gamma Knife surgery (GKS) are the primary treatments for trigeminal neuralgia (TN). However, many patients require further surgical treatment after initial surgery for recurrent TN. The aim of this study was to evaluate efficacy and safety of GKS for recurrent TN cases with prior MVD.

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Cost-Effectiveness of Postoperative Ketamine in Chiari Decompression  Voir?

In Chiari I patients, postoperative pain and discomfort frequently slow the transition back to the home setting.
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Reliability of the Tokuhashi score to predict prognosis: comparison of 117 patients  Voir?

Spinal metastatic disease compromises the quality of life and prognosis of the patients. Prognosis is an important factor for the decision-making process and needs to be precise in order to adjust the intensity of therapy. The Tokuhashi score is a universal instrument to determine the prognosis. The objective was to analyze the effectiveness of the Tokuhashi score in determining the prognosis of the patients with spine metastasis by comparing the expected survival time from the Tokuhashi score with the survival time observed among surgical patients.

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http://www.worldneurosurgery.org/article/S1878-8750(17)31831-4/fulltext?rss=yes

“A picture is worth a thousand words” is a frequently used quote that describes the notion that a complex concept can be expressed by a single image. Though Color Atlas of Brainstem Surgery does not contain a lot of text, it is worth millions of words, based on this idiom.
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Surgical Outcome of Very Small Intracranial Aneurysms Utilizing the Double Clip Technique  Voir?

To report the outcome of patients with very small intracranial aneurysm (VSIA) undergoing surgical clipping using a double-clip technique.
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Surgical resection of anterior and posterior butterfly glioblastoma  Voir?

Evidence suggests a survival benefit for patients with glioblastoma who undergo maximal safe surgical resection. Not all glioblastomas are amenable to surgical resection and anatomical location is one potentially limiting factor. Glioblastomas that invade the corpus callosum and cross midline to the contralateral hemisphere, butterfly glioblastomas (bGBMs), are one subgroup of tumors traditionally deemed inoperable.

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The Impact of Aneurysm Location on Incidence and Etiology of Hyponatremia Following Subarachnoid Hemorrhage  Voir?

Hyponatremia is the most common electrolyte abnormality in patients with aneurysmal subarachnoid hemorrhage (aSAH). Syndrome of inappropriate antidiuretic hormone secretion (SIADH) and cerebral salt wasting (CSW) are the most common etiologies. Whether or not the location of the ruptured aneurysm is associated with the etiology of hyponatremia is unknown. We sought to determine whether or not the incidence of SIADH and CSW after aSAH differed based on aneurysm location.

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Risk Factors Associated with Readmission and Reoperation in Patients Undergoing Spine Surgery  Voir?

Reoperation and readmission are often avoidable, costly, and difficult to predict. We sought to identify risk factors for readmission and reoperation after spine surgery and to use these factors to develop a scoring system predictive of readmission and reoperation.
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Adult Patients with Pneumococcal Meningitis at a Neurosurgical Neurologic Center: Different Predisposing Conditions?  Voir?

In previous studies of pneumococcal meningitis in adults within general hospitals or national cohorts, the most common predisposing conditions were otitis media, sinusitis, pneumonia, immunosuppression, alcoholism, and diabetes. The epidemiology of pneumococcal meningitis is changing because of the use of vaccines in childhood, and antibiotic resistance has increased.

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Usefulness of 18F-fluorodeoxyglucose−Positron Emission Tomography in Comparison with Methionine−Positron Emission Tomography in Differentiating Solid Hemangioblastoma from Adult Cerebellar Tumors  Voir?

Among adults with posterior fossa tumors, an intraaxial location of the tumor is less common than an extraaxial location. Moreover, the differential diagnosis of a single cerebellar tumor in adults is sometimes difficult by conventional magnetic resonance imaging. We aimed to report the findings of positron emission tomography (PET) using 18F-fluorodeoxyglucose (FDG) and methionine in adult patients with intraaxial and solitary metastatic brain tumors.

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Risk Factors of Postoperative Sacroiliac Joint Pain for Posterior Lumbar Surgery: ≥2-Year Follow-up Retrospective Study  Voir?

A retrospective study was conducted to clarify the risk factors of postoperative sacroiliac joint pain (SIJP) for posterior open lumbar surgery.
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Supernumerary abducens nerves: a comprehensive review  Voir?

Branching and/or replication of the abducens nerve is not an uncommon occurrence. While numerous variations have been documented, the rarest forms are duplicated or triplicated nerves, where multiple nerve roots originate from the brain stem, travel intracranially and attach to the lateral rectus as separate entities. Herein, we will review the literature on variations found, discuss current hypotheses and clinical relevance, and propose future studies. Neurosurgeons should be aware of such nerve variants when viewing imaging or operating in the regions traversed by the abducens nerve.

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Medical Malpractice in Neurosurgery: A Comprehensive Analysis  Voir?

Of all specialists, neurosurgeons have the highest probability of facing a medical malpractice claim. Here we report the first specialty-wide review of malpractice claims in neurosurgery performed using a well-established national online legal database.
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Observation of the effects of different surgical treatments on unilateral masticatory muscle spasm  Voir?

Unilateral masticatory muscle spasm is a rare disease without a generally accepted and efficacious treatment plan.
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Sagittal Alignment as Predictor of Adjacent Segment Disease After Lumbar Transforaminal Interbody Fusion  Voir?

This study was carried out to explore the diagnostic value of sagittal measurements for adjacent segment disease after lumbar transforaminal interbody fusion (TLIF).
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Cost-Effectiveness of Endoscopic Versus Microscopic Transsphenoidal Surgery for Pituitary Adenoma  Voir?

Endoscopic transsphenoidal surgery (ETPS) has become increasingly popular for resection of pituitary tumors, whereas microscopic transsphenoidal surgery (MTPS) also remains a commonly used approach. The economic sustainability of new techniques and technologies is rarely evaluated in the neurosurgical skull base literature. The aim of this study was to determine the cost-effectiveness of ETPS compared with MTPS.

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A novel dissection method using a flexible neuroendoscope for resection of tumors around the aqueduct of Sylvius: A case report  Voir?

Flexible endoscopes have both a wide range of movement and a wide field of view and are thus widely used for endoscopic third ventriculostomy and biopsy. However, tumor resection using flexible endoscopes has scarcely been reported, likely owing to their single port, which has a diameter of 1.2–2.0 mm. Furthermore, flexible endoscopes do not allow some of the basic neurosurgical manipulations, especially sharp dissection with counter tension. Additionally, the position of the forceps and coagulators is fixed within the endoscope.

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Postoperative Gamma Knife Radiosurgery for Cavernous Sinus–Invading Growth Hormone–Secreting Pituitary Adenomas  Voir?

We aimed to determine the long-term effects of Gamma knife radiosurgery (GKS) on remnants in the cavernous sinus (CS) after transsphenoidal surgery (TSS) for acromegaly and to identify its possible adverse effects.
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The Relationship Between Hematoma and Pachymeninges in an Interdural Hematoma: Diagnosis and Surgical Strategy  Voir?

The exact location of a hematoma in relation to the pachymeninges contributes to typical radiographic presentations. However, because of the complexity of hematoma evolution and neomembrane formation, an unexpected intraoperative finding can lead to a change of surgical strategy. In addition, the concentration of hemoglobin and its degradation products, the integrity of red blood cells, and the infiltration of fibroblasts, polymorphonuclear neutrophils, and macrophages are factors that affect the imaging characteristics on computed tomography and magnetic resonance imaging as the hematoma ages.

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Corrigendum to ‘Image Guidance to Aid Pedicle Screw Fixation of a Lumbar Fracture-Dislocation Injury in a Toddler’ [World Neurosurgery 105 (2017) 1041.e15-1041.e17]  Voir?

The authors regret the error in the misspelling of an author's name Jonathan Nakhla and have corrected it.
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Posterior Lumbar Interbody Fusion with 3D-Navigation Guided Cortical Bone Trajectory Screws for L4/5 Degenerative Spondylolisthesis: 1-Year Clinical and Radiographic Outcomes  Voir?

We describe our technique and evaluate clinical and radiographic outcomes for patients undergoing L4/5 posterior lumbar interbody fusion with 3D-navigation guided cortical bone trajectory screws (PLIF-CBT) for grade 1 or 2 degenerative spondylolisthesis with a minimum follow-up time of 12 months.
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Transtentorial Distortion Syndrome: Consistent Complication Following Lateral and Fourth Ventricular Shunting in Adults  Voir?

Complex hydrocephalus affecting lateral and fourth ventricles separately is occasionally managed with cerebrospinal fluid diversion via supratentorial and infratentorial ventricular catheters. The optimal configuration to reduce complications is currently unknown in adults. We describe a consistently similar clinical presentation of patients with complex hydrocephalus and a fourth ventricle separately drained by infratentorial shunt insertion.

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Surgical Treatment of Spinal Synovial Cysts in Elderly Patients: Symptoms, Treatment Course, and Outcome in Patients >75 Years of Age  Voir?

With the aging of our society comes a rising number of elderly patients with progressive degeneration of the spine associated with synovial cysts. Surgical treatment may be particularly challenging in elderly patients because of comorbidities.
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The Effect of Steroids on Complications, Readmission, and Reoperation After Posterior Lumbar Fusion  Voir?

The effects of chronic corticosteroid therapy on complications, readmission, and reoperation after posterior lumbar fusion (PLF) remain underinvestigated, and were examined to determine differences in outcomes.
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Fusion, Failure, Fatality: Long-term Outcomes After Surgical Versus Nonoperative Management of Type II Odontoid Fracture in Octogenarians  Voir?

Type II odontoid fracture is a highly morbid injury among octogenarians, with 41% 1-year mortality. Our objective was to assess long-term fusion, complication, and survival rates.
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Unruptured versus Ruptured AVMs: Outcome analysis from a multicentric consecutive series of 545 surgically treated cases  Voir?

Recent literature strongly challenged indications to perform preventive surgery in unruptured AVM. claiming that invasive AVM treatment is associated with a significant risk of complications and thus conservative management may be a preferable alternative in many patients. On the other hand, the recent improvement of surgical instrumentation and treatment strategies (both surgical and interventional) yielded much better outcomes than those achieved only a decade ago. Therefore, even among the specialists, a wide variety of opinions, concerning the treatment of unruptured AVM, can be found.

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Technical Note: Robotic-guided bi-hippocampal and bi-parahippocampal depth placement for responsive neurostimulation in bitemporal lobe epilepsy  Voir?

Patients with bitemporal lobe epilepsy are generally not considered for surgical resection. Fortunately, responsive neurostimulation proves another avenue for the management of this challenging disease process. In conjunction with our epileptologist, we consider responsive neurostimulation for patients who have clinical features of temporal lobe epilepsy without clear localization on imaging and stereo-EEG.

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Efficacy of the biomedical glue sling technique versus the traditional technique for microvascular decompression for hemifacial spasm with refractory hypertension  Voir?

Microvascular decompression (MVD) is useful treatment for Hemifacial spasm (HFS) with refractory hypertension (RHTN). Biomedical glue sling technique is a new method for MVD. In this study, we retrospectively compared the outcome of biomedical glue sling technique with traditional technique in MVD for HFS with RHTN.

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Epidemiology and Management of Spinal Trauma in Children and Adolescents <18 Years Old  Voir?

This retrospective study reports the epidemiology, clinical aspects, and management of spinal trauma in children and adolescents.
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A Novel Technique for Cervical Facet Joint Hyperplasia-Spondylotic Radiculopathy by Laminar and Lateral Mass Screw Cofixations  Voir?

We sought to describe the novel technique and report the outcomes of cervical spondylotic radiculopathy caused by facet joint hyperplasia treated with minimally invasive surgery by laminar and lateral mass screw cofixations.
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Predictors of Hospital Length of Stay and 30-Day Readmission in Cervical Spondylotic Myelopathy Patients: An Analysis of 3057 Patients Using the ACS-NSQIP Database  Voir?

Hospital length of stay (LOS), 30-day readmission rate, and other metrics are increasingly being used to evaluate quality of surgical care. The factors most relevant to cervical spondylotic myelopathy (CSM) are not yet established.
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Central Nervous System Lymphatics and Impact on Neurologic Disease  Voir?

The lymphatic system is responsible for osmotic gradients, fluid homeostasis, inflammatory states, and immune regulation throughout the body. Until recently, it was believed that the central nervous system was devoid of a traditional lymphatic system and the brain lacked lymphatic vessels. In 2015, a system for efficient drainage and exchange of interstitial fluid (ISF) and waste was identified as the glymphatic system.1 The glymphatic system consists of a para arterial influx route, a paravenous efflux route, and a transparenchymal route regulated by astroglia.

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Scenario Planning: Playing the Expectations Game in Spine Surgery  Voir?

“ … as we know, there are known knowns;there are things we know we know.We also know there are known unknowns; that is to say,we know there are some things we do not know.But there are also unknown unknowns—the ones we don't know we don't know.”—Secretary of Defense Donald Rumsfeld
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Mathematic Network of Seizure Activity: How Presurgical Simulation Can Predict Postsurgical Success  Voir?

Surgery for epilepsy control has evolved significantly throughout history. Early operations for seizure control involved cranial trephinations for the emancipation of magical and superstitious encumbrances that were once thought to be the etiologic cause. Over the centuries, the development of refined scientific discoveries included aseptic surgical technique, electrophysiologic monitoring, high-resolution radiographic imaging, and more recently, minimally invasive techniques for the destruction of seizure foci.

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Posterior Cervical Laminectomy Results in Better Radiographic Decompression of Spinal Cord Compared with Anterior Cervical Discectomy and Fusion  Voir?

Cervical spondylitic myelopathy is a degenerative condition resulting from chronic spinal cord compression and a leading cause of nontraumatic spinal cord dysfunction. The chief surgical goal in the management of cervical spondylitic myelopathy is adequate spinal cord decompression with or without fusion to slow or prevent further neurologic decline. We conducted a radiographic analysis of canal parameters preoperatively and postoperatively for patients undergoing either anterior or posterior cervical decompression.

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Is There an Indication for Intraoperative MRI in Subtotal Resection of Glioblastoma? A Multicenter Retrospective Comparative Analysis  Voir?

Surgery in patients with highly eloquent glioblastoma (GB) remains challenging. The aim of this study was to evaluate influence of use of intraoperative magnetic resonance imaging (iMRI) on extent of resection (EOR), clinical outcome, and survival in patients with preoperatively intended subtotal resection of GB.

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Outcome of Transforaminal Epidural Steroid Injection According to Severity of Cervical Foraminal Stenosis  Voir?

Cervical transforaminal epidural steroid injection (TFESI) is considered one of the most effective treatments for radicular pain induced by cervical foraminal stenosis.
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The Optimal Treatment Options of Septated Chronic Subdural Hematoma: A Retrospective Comparison of Craniotomy Versus Endoscopic-Assisted Burr-Hole Craniostomy  Voir?

To complete a retrospective comparison of endoscope-assisted burr-hole craniostomy (EBHC) and craniotomy in the treatment of septated chronic subdural hematoma (SCSH).
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Preoperative Assessment of Craniopharyngioma Adherence: Magnetic Resonance Imaging Findings Correlated with the Severity of Tumor Attachment to the Hypothalamus  Voir?

Craniopharyngioma (CP) adherence represents a heterogeneous pathologic feature that critically influences the potentially safe and radical resection. The aim of this study was to define the magnetic resonance imaging (MRI) predictors of CP adherence severity.
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Traumatic Fractures of the Cervical Spine: Analysis of Changes in Incidence, Cause, Concurrent Injuries, and Complications Among 488,262 Patients from 2005 to 2013  Voir?

The causes and epidemiology of traumatic cervical spine fracture have not been described with sufficient power or recency. Our goal is to describe demographics, incidence, cause, spinal cord injuries (SCIs), concurrent injuries, treatments, and complications of traumatic cervical spine fractures.
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The Effect of Obesity on Clinical Outcomes Following Minimally Invasive Spine Surgery: A Systematic Review and Meta-analysis  Voir?

Obesity is associated with increasing morbidity and mortality in many prevalent diseases, especially for lumbar degenerative disease. The relationship between minimally invasive spine (MIS) surgery and perioperative adverse events in obese patients with lumbar degenerative disease has not been well evaluated.

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Comparison of Results Between Posterior Fossa Decompression with and without Duraplasty for the Surgical Treatment of Chiari Malformation Type I: A Systematic Review and Meta-Analysis  Voir?

Posterior fossa decompression without (PFD) or with duraplasty (PFDD) for the treatment of type 1 Chiari malformation (CM-1) is controversial. We thus performed a systematic review and meta-analysis of studies to assess the effect on clinical and imaging improvement, operative time, complications, and recurrence rate between PFD and PFDD in patients with CM-1.

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Anterior Transdiscal Axial Screw Fixation for Subaxial Cervical Spine: A Biomechanical Study  Voir?

To evaluate stability of anterior transdiscal axial screw (ATAS) fixation for anterior instrumentation and to compare with standard anterior cervical decompression and fusion and plate (ACDFP) fixation in human subaxial cervical spine.
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Comparison of Clinical and Radiographic Outcomes for Posterior Fossa Decompression with and without Duraplasty for Treatment of Pediatric Chiari I Malformation: A Prospective Study  Voir?

The aim of this study was to prospectively compare the radiographic and clinical outcomes between the posterior fossa decompression (PFD) and PFD with duraplasty (PFDD) procedures in adolescent patients with Chiari malformation type I (CMI).
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Neuroendoscopic Treatment of Cystic Craniopharyngiomas: A Case Series with Systematic Review of the Literature  Voir?

Total removal of craniopharyngiomas is burdened by high morbidity. In cases of a cystic or mixed craniopharyngioma, when the symptoms are caused by the cystic component of the tumor, a less invasive surgical approach aiming at cyst drainage may be recommended. Here, we report our experience with intraventricular neuroendoscopy, describe our clear-cut surgical technique, and analyze results in the context of literature data.

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Clinical Characteristics of Lumbosacral Spinal Dural Arteriovenous Fistula (DAVF)–Comparison with Thoracic DAVF  Voir?

Spinal dural arteriovenous fistula (DAVF) occurs at any spinal level, but the clinical characteristics of lumbosacral DAVF have not been well documented. The purpose of this study was to evaluate clinical characteristics of lumbosacral DAVF and compare these features with those in thoracic DAVF.
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Correlation Between Contrast Time–Density Time on Digital Subtraction Angiography and Flow: An in Vitro Study  Voir?

Digital subtraction angiography (DSA) provides an excellent anatomic characterization of cerebral vasculature, but hemodynamic assessment is often qualitative and subjective. Various clinical algorithms have been produced to semiquantify flow from the data obtained from DSA, but few have tested them against reliable flow values.

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Effectiveness of a Decision-Making Protocol for the Surgical Treatment of Lumbar Stenosis with Grade 1 Degenerative Spondylolisthesis  Voir?

Addition of fusion to decompression for stenosis with grade 1 degenerative spondylolisthesis is a controversial topic, and the question remains if fusion provides any benefit to the patient that warrants the increased health care utilization and perioperative morbidity. There is no consensus on indications for use of fusion over decompression alone.

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Effects of Low Bone Mineral Status on Biomechanical Characteristics in Idiopathic Scoliotic Spinal Deformity  Voir?

Low bone mass in patients with adolescent idiopathic scoliosis has been well reported. Poor bone quality was regarded as a new and unique prognostic factor in aggravating curve progression. However, the potential biomechanical correlation between them remains unclear.
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Treatment of Spontaneous Dissecting Aneurysm in Extracranial Vertebral Artery with Covered Stent  Voir?

To treat a 13-year-old boy with a spontaneous vertebrobasilar artery dissecting aneurysm in the extracranial artery, which was only 1 mm away from the initial segment of subclavian artery.
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Risk Factors for the Rupture of Intracranial Aneurysms Using Computed Tomography Angiography  Voir?

To study the clinical and morphologic characteristics associated with risk factors for the rupture of intracranial aneurysms (IAs).
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Are Antiplatelet and Anticoagulants Drugs A Risk Factor for Bleeding in Mild Traumatic Brain Injury?  Voir?

Facing mild traumatic brain injury, clinicians must decide whether to perform a computed tomography (CT) scan to detect a potential intracranial hemorrhage. Many useful guidelines have been developed for the general population, but there is no general consensus about the best practice to adopt when dealing with patients on antiplatelet or anticoagulation drugs. The relatively recent introduction of new anticoagulants and second-generation antiplatelet drugs poses new challenges in this field. There are no data in the literature about the relative risk of intracranial bleeding in such categories.

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Low-Grade Glioma with Foci of Early Transformation Does Not Necessarily Require Adjuvant Therapy After Radical Surgical Resection  Voir?

Low-grade glioma (LGG) is a slow-growing tumor often found in young adults with minimal or no symptoms. As opposed to true low-grade lesions such as dysembryoplastic neuroepithelial tumors, they are associated with continuous growth and inevitable malignant transformation.
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Readmissions in Anticoagulated Intracranial Hemorrhage Patients: A Retrospective Review  Voir?

The objective of this study was to determine the effect of Direct Oral Anticoagulants (DOACs) when compared to warfarin, on the 30-day readmission rates in patients with traumatic intracranial hemorrhage (ICH).
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Postsurgical Cavity Evolution After Brain Metastasis Resection: How Soon Should Postoperative Radiosurgery Follow?  Voir?

Postoperative stereotactic radiosurgery (SRS) to the cavity after resection of brain metastases improves local control. We hypothesized that significant cavity constriction would occur from the immediate postoperative period to the time of SRS and aimed to elucidate optimal treatment timing.
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Efficacy of Using Intermediate Screws in Short-Segment Fixation for Thoracolumbar Fractures: A Meta-Analysis of Randomized Controlled Trials  Voir?

Some studies have reported that the conventional intersegmental pedicle screws (4-screw fixation [4S]) device for thoracolumbar fractures was associated with inadequate reduction of fractured vertebrae, insufficient correction of kyphosis, and implant failure. Recently, a series of biomechanical studies has confirmed that the addition of intermediate fixation screws (6-screw fixation [6S]) could provide stronger fixation and better reduction of fractured vertebrae. Nevertheless, the clinical and radiologic efficacy of the additional intermediate screws remains unclear.

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Long-Term Follow-Up of Patients with Metastatic Epidural Spinal Cord Compression from Breast Cancer Treated with Surgery Followed by Radiotherapy  Voir?

To evaluate role of surgery plus radiotherapy (RT) in patients with metastatic epidural spinal cord compression from breast cancer with a follow-up >10 years.
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Neurosurgery in Octogenarians: A Prospective Study of Perioperative Morbidity, Mortality, and Complications in Elderly Patients  Voir?

The aging population in industrialized countries shifts the age limit for neurosurgical interventions toward increasingly older patients. This study investigates whether octogenarians (≥80 years) stand out in outcome and incidence of perioperative complications.
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Evaluation of the Use of Calcium Phosphate Cement for Aesthetic Neurosurgical Cranial Reconstruction  Voir?

The objective of this article is to evaluate whether newly developed calcium phosphate cement (CPC), mounted around the titanium plates, is useful for aesthetic cranial reconstruction by using 2 methods.
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Patients with a Normal Pressure Hydrocephalus Shunt Have Fewer Complications than Do Patients with Other Shunts  Voir?

Ventriculoperitoneal (VP) shunting is a well-established therapy for hydrocephalus. However, complications are frequent. The incidence of idiopathic normal pressure hydrocephalus (NPH) increases with the aging of the population. We evaluated the functional status of patients and the classification of complications associated with VP shunt procedures in our center.

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Surgical Outcomes After Segmental Limited Surgery for Adjacent Segment Disease: The Consequences of Makeshift Surgery  Voir?

To minimize surgical morbidity, surgeons may opt to perform segmental limited surgery instead of fusion extension for adjacent segment disease (ASD) after lumbar fusion surgery. This study evaluated clinical outcomes from segmental limited surgery without fusion extension for ASD and assessed which clinical factors were associated with reoperation after segmental limited surgery.

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Unplanned intraoperative extubations in pediatric neurosurgery: analysis of case series to increase patient safety  Voir?

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The Impact of Chronic Kidney Disease on Postoperative Outcomes in Patients Undergoing Lumbar Decompression and Fusion  Voir?

To determine whether preoperative chronic kidney disease (CKD) is associated with inferior perioperative outcomes in patients undergoing lumbar arthrodesis.
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Endoscopic Approach to Clival Chordomas: The Northwestern Experience  Voir?

Chordomas are rare primary bone tumors with a low-grade histology but an aggressive clinical behavior characterized by local invasion and recurrence. When occurring in the skull base, their treatment is limited by proximity to critical neurovascular structures. Open surgical approaches can carry high morbidity, making the development of alternative approaches desirable. We describe our experience with endoscopic endonasal approaches to clival chordomas over 13 years.

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Clinical features of precocious, synchronous, and metachronous brain metastases and the role of tumor resection  Voir?

The purpose of this study was to clarify clinical features, outcomes, and the role of tumor resection in precocious, synchronous, and metachronous brain metastases. Methods Brain metastases were found before primary cancer detection in the precocious group, within 2 months after primary cancer detection in the synchronous group, and 2 months or later after primary cancer detection in the metachronous group.

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Suboccipital Decompressive Craniectomy for Cerebellar Infarction: A Systematic Review and Meta-Analysis  Voir?

Suboccipital decompressive craniectomy (SDC) for cerebellar infarction has been traditionally performed with minimal high-quality evidence. The aim of this systematic review and meta-analysis is to investigate the impact of SDC on functional outcomes, mortality, and adverse events in patients with cerebellar infarcts.

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Impact of Operating Room Environment on Postoperative Central Nervous System Infection in a Resource-Limited Neurosurgical Center in South Asia  Voir?

Postoperative central nervous system infections (PCNSIs) are serious complications following neurosurgical intervention. We previously investigated the incidence and causative pathogens of PCNSIs at a resource-limited, neurosurgical center in south Asia. This follow-up study was conducted to analyze differences in PCNSIs at the same institution following only one apparent change: the operating room air filtration system.

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Differentiating between Primary Central Nervous System Lymphomas and Glioblastomas: Combined Use of Perfusion- and Diffusion- Weighted Magnetic Resonance Imaging  Voir?

The purpose of this study was to determine whether combined diffusion-weighted imaging (DWI) and dynamic susceptibility contrast-enhanced perfusion-weighted imaging (PWI) magnetic resonance imaging (MRI) can be used to differentiate between common malignant brain tumors, including lymphomas and high-grade gliomas.

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Anatomic Study of Extracranial Needle Trajectory Using Hartel Technique for Percutaneous Treatment of Trigeminal Neuralgia  Voir?

The aim of this study was to describe the anatomic trajectory of the extracranial needle for percutaneous rhizotomy and correlate this with structures at risk during such a procedure.
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An Evaluation of Commonly Used External Ventricular Drain Securement Methods in a Porcine Model: Recommendations to Improve Practice  Voir?

External ventricular drain (EVD) dislodgement is common and leads to significant morbidity and mortality. Many securement techniques to prevent this are described. There are, however, no objective studies comparing them. This study aimed to determine the most secure method of securing an EVD.
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Surgical Revascularization for Children with Moyamoya Disease: A New Modification to the Pial Synangiosis  Voir?

To summarize therapeutic efficacy of modified pial synangiosis in children with moyamoya disease and our experience with this method.
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Epidural Steroids at Closure After Microdiscectomy/Laminectomy for Reduction of Postoperative Analgesia: Systematic Review and Meta-Analysis  Voir?

This review assessed the efficacy of epidural steroid administration on the reduction of pain, hospital stay time, and use of opioid analgesics postoperatively.
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Prognostic Factors for the Survival Outcome of Bilateral Thalamic Glioma: An Integrated Survival Analysis  Voir?

The aim of this study was to perform an integrated survival analysis of patients with bilateral thalamic glioma and to assess the influence of various prognostic factors on overall survival.
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Development of Life-Size Patient-Specific 3D-Printed Dural Venous Models for Preoperative Planning  Voir?

Despite significant improvement in clinical care, operative strategies, and technology, neurosurgery is still risky, and optimal preoperative planning and anatomical assessment are necessary to minimize the risks of serious complications. Our purpose was to document the dural venous sinuses (DVS) and their variations identified during routine 3-dimensional (3D) venography created through 3D models for the teaching of complex cerebral anatomy.

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How early can we perform cranioplasty for traumatic brain injury after decompressive craniectomy? A retrospective multi-center study  Voir?

Decompressive craniectomy (DC) is used to treat intractable intracranial hypertension following severe traumatic brain injury (TBI). Cranioplasty (CP) is typically performed weeks or months later. However, the optimal timing for CP is unknown. We aimed to determine the earliest possible time point for CP.

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Infection Incidence Associated with External Ventriculostomy Placement: A Comparison of Outcomes in the Emergency Department, Intensive Care Unit, and Operating Room  Voir?

External ventricular drain (EVD) placement is a common neurosurgical procedure used to control acute hydrocephalus and other neurosurgical complications. The infection and complication rates reported in the literature are highly variable, and iatrogenic factors determine the outcome of drain placement. We examined the impact of the setting of EVD placement (emergency department [ED] vs. intensive care unit [ICU] vs. operating room [OR]) and the experience of the operating surgeon on the infection rate, complication rate, EVD replacement, eventual placement of a ventriculoperitoneal shunt, and the need for further surgical intervention.

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Electrocardiographic-Guided Technique for Placement of Ventriculoatrial Shunts: A Valid and Cost-Effective Technical Simplification  Voir?

Ventriculoatrial (VA) shunt is a routine technique for the treatment of hydrocephalus. The correct position at the superior vena cava–right atrium junction is generally assessed by radiography. We present the first experience of an alternative, nonradiographic technique to assess the distal end of the VA shunts through an electrocardiographic (EKG) method. The technique has developed from the large experience of central venous catheters (CVC) worldwide; the EKG-guided method is a common and validated alternative to standard radiologic control of the location of the tip of any CVC.

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Torcular Meningioma with Multi-Venous Sinus Invasion: Compensatory Drainage Veins and Surgical Strategy  Voir?

Torcular meningiomas involving major dural venous sinuses are rare entities and a great challenge for neurosurgeons. The deep knowledge of the patency of occlusion of the sinuses, the extent of the occlusion and potentially new developing of extra and intracranial collateral venous drainage as compensatory venous channels, are at the base of a correct operative strategy.

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Effect of Progesterone on Cerebral Vasospasm and Neurobehavioral Outcomes in a Rodent Model of Subarachnoid Hemorrhage  Voir?

Subarachnoid hemorrhage (SAH) induces widespread inflammation leading to cellular injury, vasospasm, and ischemia. Evidence suggests that progesterone (PROG) can improve functional recovery in acute brain injury owing to its anti-inflammatory and neuroprotective properties, which could also be beneficial in SAH. We hypothesized that PROG treatment attenuates inflammation-mediated cerebral vasospasm and microglial activation, improves synaptic connectivity, and ameliorates functional recovery after SAH.

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Isolated Transverse Process Spinal Fractures Increase the Likelihood of Incurring Visceral and Pelvic Injuries: A Retrospective Review at a Level-1 Trauma Center  Voir?

Although isolated transverse process fractures (ITPF) do not confer any inherent risk of compromised spinal stability, there is increasing interest in their overall prognostic significance. As a proxy for localized or directional forces in high-energy traumatic mechanisms, ITPF may serve as an indicator for the presence of other coexisting traumatic injuries. Specific injuries may be predicted by the presence of ITPF at specific spinal levels, but few studies have examined this in depth and may not account for confounding variables.

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Tentorial Meningiomas: Reappraisal of Surgical Approaches and Their Outcomes  Voir?

Tentorial meningiomas are notorious for their critical location. Selection of a suitable approach that exposes the multicompartmental growth of tumor is important for a complete and safe resection. This paper discusses about various operative approaches and their overall surgical outcome.
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Cryopreservation of Autologous Cranial Bone Flaps for Cranioplasty: A Large Sample Retrospective Study  Voir?

To clarify the clinical outcomes of cranioplasty with cryopreserved bone flaps and identify risk factors related to bone flap infection and resorption after cranioplasty with cryopreserved bone flaps.
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Prosthetic Replacement of the Ocular Surface Ecosystem Treatment of Ocular Surface Disease After Skull Base Tumor Resection  Voir?

Prosthetic replacement of the ocular surface ecosystem (PROSE) treatment is an effective, nonsurgical therapeutic option for patients with ocular surface disease related to cranial nerve deficits secondary to skull base tumor resection.
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Results of a Policy of Fast Tapering of Steroids After Resection Surgery in Glioblastoma  Voir?

Corticosteroids are routinely used to treat brain tumors. Although steroids have an immediate clinical benefit, their use can lead to a number of relevant complications, and a negative association with overall survival has been shown in glioblastoma (GBM) patients. There is no evidence in the literature regarding the ideal dose. We assessed the use of steroids in patients with GBM after resection surgery.

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Adolescent Idiopathic Scoliosis Surgery by a Neurosurgeon: Learning Curve for Neurosurgeons  Voir?

To determine a neurosurgeon's learning curve of surgical treatment for adolescent idiopathic scoliosis (AIS) patients.
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Proximal Stenosis Is Associated with Rupture Status in Middle Cerebral Artery Aneurysms  Voir?

Hemodynamic factors impact cerebral aneurysm development and progression. Parent vessel architectural features, such as caliber, curvature, and angle, can affect downstream pressure and shear stress.
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The Correlation Between Vertical Laminar Fractures and the Severity of Associated Burst Fractures  Voir?

Patients with laminar fractures have a higher chance of experiencing severe trauma and neurologic deficit. In previous studies, laminar fractures were divided into different types based on the axial plane of computed tomographic scans. No report described the morphology of vertical laminar fractures in the coronal plane. Furthermore, the correlation between a specific type of laminar fracture and the extent of severity of thoracolumbar (TL) burst fractures has rarely been mentioned.

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Sporadic Intradural Extramedullary Hemangioblastoma of the Cauda Equina: Case Report and Literature Review  Voir?

Spinal hemangioblastomas account for 1%–5% of all spinal cord tumors. Although spinal hemangioblastomas are rare, it is exceedingly rare to have a case of intradural extramedullary hemangioblastoma of the spine, especially in isolation without von Hippel-Lindau syndrome. The purpose of this report is to present a rare case of intradural extramedullary hemangioblastoma of the cauda equina and a literature review.

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Posterior Communicating Artery Giving Rise to Shared-Origin Anterior Choroidal Artery: Case Illustration  Voir?

The origin point of the anterior choroidal artery (AChA) is variable, typically arising from the supraclinoid internal carotid artery (ICA) distal to the posterior communicating artery (PComA) on either the posterolateral or posterior aspect of the ICA. Variations of AChA origin have important clinical implications, and rare origins reported previously include the ICA bifurcation and middle cerebral artery. We provide illustrations of a case of a shared-origin PComA and AChA.

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The Middle Temporal Artery: Surgical Anatomy and Exposure for Cerebral Revascularization  Voir?

The middle temporal artery (MTA) is the proximal medial branch of the superficial temporal artery (STA), supplying the temporalis muscle along with deep temporal arteries. Its use in vascularized flaps for reconstructive and otologic procedures has been described, yet its potential use in neurosurgery has not been studied. We report a novel technique for exposing the MTA and evaluated its characteristics for extracranial–intracranial cerebrovascular bypass.

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Corrigendum to “Intraoperative Ultrasound in Patients Undergoing Transsphenoidal Surgery for Pituitary Adenoma: Systematic Review” [World Neurosurgery 106 (2017) 680-685]  Voir?

The authors regret that there was a typo in the title of this article, where the word “Transsphenoidal” was originally printed as “Transsphoidal”.
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Efficacy, Reliability, and Safety of Completely Autologous Fibrin Glue in Neurosurgical Procedures: Single-Center Retrospective Large-Number Case Study  Voir?

Commercially available fibrin glue (Com-FG), which is used commonly worldwide, is produced with pooled human plasma from multiple donors. However, it has added bovine aprotinin, which involves the risk of infection, allogenic immunity, and allergic reactions. We evaluate the efficacy, reliability, and safety of completely autologous fibrin glue (CAFG).

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Advantages of Staged Angioplasty in a Patient with Internal Carotid Artery Pseudo-Occlusion Besides Prevention of Cerebral Hyperperfusion Syndrome  Voir?

Staged angioplasty for carotid artery stenosis has been reported to be effective in preventing postoperative cerebral hyperperfusion syndrome (CHS) in patients with severe carotid stenosis; thus, it is also recommended for patients with internal carotid artery (ICA) pseudo-occlusion, the treatment strategy for which is controversial.

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A Critical Analysis of the Utility of Intraoperative Angiography  Voir?

Intraoperative digital subtraction angiography (ioDSA) is touted as the gold standard imaging evaluation for aneurysm clip constructs. Candid evaluations of its limitations are sparse.
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Exome Sequencing Identifies LOXL2 Mutation as a Cause of Familial Intracranial Aneurysm  Voir?

Genetic risk factors can contribute to the etiology of intracranial aneurysms (IAs), and the genetic predisposition of IAs is largely unknown. Our study aimed to explore the role of rare variations in IA susceptibility.
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Evaluation of Problem- and Simulator-Based Learning in Lumbar Puncture in Adult Neurology Residency Training  Voir?

Lumbar puncture (LP) is an essential part of adult neurology residency training. Technologic as well as nontechnologic training is needed. However, current assessment tools mostly focus on the technologic aspects of LP. We propose a training method—problem- and simulator-based learning (PSBL)—in LP residency training to develop overall skills of neurology residents.

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Assessment of a Novel Adult Cervical Deformity Frailty Index as a Component of Preoperative Risk Stratification  Voir?

To determine the value of a novel adult cervical deformity frailty index (CD-FI) in preoperative risk stratification.
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Resumption of Antithrombotic Agents in Chronic Subdural Hematoma: A Systematic Review and Meta-analysis  Voir?

The clinical decision whether and when to resume antithrombotics in patients with chronic subdural hematomas (CSDH) postoperatively is limited by a lack of quality evidence exploring this topic. Our study aims to assess the available evidence of patient complication outcomes, specifically hemorrhagic and thromboembolic events, following the resumption or non-resumption of antithrombotic agents postoperatively in CSDH patients already on these agents before CSDH.

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Artificial Stroke Clots: How Wide is the Gap to the Real World?  Voir?

Especially since the establishment of mechanical thrombectomy as part of standard stroke therapy, artificial thrombi have become important in the training of interventionalists as well as for the development and testing of devices. So far, these in vitro clots have lacked direct comparisons with ex vivo thrombi. We therefore compared the histologic appearance of dynamically produced clots with that of stroke thrombi acquired during mechanical recanalization.

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Subarachnoid Hemorrhage and Readmissions: National Rates, Causes, Risk Factors, and Outcomes in 16,001 Hospitalized Patients  Voir?

The acute complications of aneurysmal subarachnoid hemorrhage (aSAH) often lead to readmissions, which are linked to hospital reimbursement. The national rates, causes, risk factors, and outcomes associated with 30-day and 90-day readmission after aSAH have not previously been reported.
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Does Temperature Increase by Sympathetic Neurolysis Improve Pain in Complex Regional Pain Syndrome? A Retrospective Cohort Study  Voir?

Lumbar sympathetic neurolysis (LSN) is a treatment option for complex regional pain syndrome (CRPS). We examined whether LSN-related temperature changes are associated with clinical outcome and investigated relationships between the outcome of LSN and clinical variables in patients with CRPS-I.
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Risk of Recurrence in Operated Parasagittal Meningiomas: A Logistic Binary Regression Model  Voir?

Parasagittal meningiomas arise from the arachnoid cells of the angle formed between the superior sagittal sinus (SSS) and the brain convexity. In this retrospective study, we focused on factors that predict early recurrence and recurrence times.
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The Relationship Between Intracranial Pressure and Age—Chasing Age-Related Reference Values  Voir?

No true reference values for intracranial pressure (ICP) in humans exist; current values are estimated from measurements in adults who undergo treatment in order to correct ICP. We report ICP values in a “pseudonormal” group of children and adults to examine if age affects ICP.
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Transarterial Onyx Embolization of Bilateral Transverse–Sigmoid Dural Arteriovenous Malformation with Transvenous Balloon Assist—Initial U.S. Experience with Copernic RC Venous Remodeling Balloon  Voir?

Currently, the mainstay treatment of dural arteriovenous fistula (DAVF) involves endovascular approaches, especially for high-grade lesions. Transarterial embolization with preservation of venous sinuses has become the preferred approach due to the development of newer liquid embolic agents. For further precision during embolization, the use of temporary balloon occlusion to protect the patency of dural sinuses from the embolic agent's migration has been described.

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Cisternostomy for Refractory Posttraumatic Intracranial Hypertension  Voir?

The current surgical treatment of choice for refractory intracranial hypertension after traumatic brain injury (TBI) is decompressive craniectomy. Despite efficacy in control of intracranial pressure (ICP), its contribution to an improved outcome is debatable.
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A Case of Asymptomatic Occipital Condyle Fracture with Incomplete Occipitocervical Dislocation: How Did It Happen?  Voir?

Atlanto-occipital dislocation (AOD) is a lesion rarely observed in a trauma center, because of high mortality in the preclinical phase. The number of AOD survivors is increasing thanks to the improvement in prehospital resuscitation.
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Independent Association Between Preoperative Cognitive Status and Discharge Location After Surgery: A Strategy to Reduce Resource Use After Surgery for Deformity  Voir?

The aim of this study is to determine whether preoperative scores on a screening measure for cognitive status (the Saint Louis University mental status examination), were associated with discharge to a location other than home in older patients undergoing surgery for deformity.
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Hybrid assistive limb exoskeleton HAL® in the rehabilitation of chronic SCI: Proof of concept, the results of 21 patients  Voir?

The use of mobile exoskeletons is becoming more and more common in the field of spinal cord injury rehabilitation. The hybrid assistive limb exoskeleton (HAL) provides a tailored support depending on the patient’s voluntary drive.
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Anatomic Basis for Minimally Invasive Resection of Intradural Extramedullary Lesions in Thoracic Spine  Voir?

Since the first resections of intradural extramedullary neoplasms, neurosurgeons have tended to preserve as much of the integrity of the spine as possible while ensuring a safe corridor to resect these lesions. A dimensional analysis of intradural lesions superimposed on a dimensional analysis of the thoracic canal would provide the anatomic basis for a minimal access approach. The authors report the results of such an analysis on a series of patients with intradural extramedullary lesions.

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Safety and Efficacy of Single-Stage versus 2-Stage Spinal Fusion via Posterior Instrumentation and Anterior Thoracoscopy: A Retrospective Matched-Pair Cohort Study with 247 Consecutive Patients  Voir?

Posterior-anterior spondylodesis is often used to stabilize the spine in various pathologies. The anterior procedure is often performed via thoracoscopy. It is unclear whether the anterior procedure should be performed immediately after posterior instrumentation or after the patient has convalesced. This retrospective study compared perioperative safety and morbidity in 1-stage versus 2-stage posterior-anterior fusion surgery with a thoracoscopic anterior approach.

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Endoscopic Endonasal Transsphenoidal Drainage of a Spontaneous Candida glabrata Pituitary Abscess  Voir?

Noniatrogenic pituitary abscess remains a rare clinical entity, and is the indication for surgery in <1% of transsphenoidal approaches. Correct diagnosis of this rare entity is often delayed. Without timely treatment, morbidity and mortality are high. Of the 200 cases reported to date, less than one-half have identified a causative organism. We report the second case of a pituitary abscess caused by Candida species, and also provide an intraoperative video showing the endoscopic management of this pathology.

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Intradural Extramedullary Bronchogenic Cyst: Clinical and Radiologic Characteristics, Surgical Outcomes, and Literature Review  Voir?

An intradural extramedullary bronchogenic cyst (IEBC) is a congenital malformation and an extremely rare type of endodermal cyst. This study aims to report the clinical and radiologic characteristics and surgical outcomes of IEBCs and to review the available literature.
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Long-Term Efficacy of Initial Microvascular Decompression Versus Subsequent Microvascular Decompression for Idiopathic Hemifacial Spasm  Voir?

Hemifacial spasm (HFS) is a disorder characterized by intermittent, involuntary facial muscle contractions. Microvascular decompression (MVD) is the gold treatment for HFS. The aim of this research was to discuss whether patients undergoing MVD as their initial surgical intervention experience greater spasm control than patients experiencing an MVD performed as a subsequent surgical intervention.

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Percutaneous Endoscopic Lumbar Reoperation for Recurrent Sciatica Symptoms: A Retrospective Analysis of Outcomes and Prognostic Factors in 94 Patients  Voir?

Recurrent symptoms of sciatica after previous surgical intervention is a relatively common and troublesome clinical problem. Percutaneous endoscopic lumbar decompression has been proved to be an effective method for recurrent lumbar disc herniation. However, the prognostic factors and outcomes of percutaneous endoscopic lumbar reoperation (PELR) for recurrent sciatica symptoms were still unknown. The purpose of this study was to evaluate the outcomes and prognostic factors of patients who underwent PELR for recurrent sciatica symptoms.

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Effect of Baroreceptor Sensitivity on Outcomes in Patients with Acute Spontaneous Intracerebral Hemorrhage  Voir?

Reduced baroreflex sensitivity (BRS) has been reported in patients with acute cardiovascular events. We tested the hypothesis that BRS is substantially reduced in patients with spontaneous intracerebral hemorrhage (ICH) and that BRS can predict treatment outcomes.
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Effect of Tranexamic Acid on Prevention of Hemorrhagic Mass Growth in Patients with Traumatic Brain Injury  Voir?

Intracranial hemorrhage is a common complication of traumatic brain injury (TBI). The purpose of this study is evaluation of the effect of tranexamic acid (TXA) on hemorrhagic mass growth in TBI patients.
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Suboccipital Craniotomy Versus Craniectomy: A Survey of Practice Patterns  Voir?

Open surgical access to the posterior fossa traditionally has been achieved by permanent bone removal and remains the mainstay of posterior fossa surgery, although craniotomy is an alternative. Considerable variation exists at both the national and international levels within a variety of neurologic and neurosurgical disciplines. In this study, we surveyed current practice patterns regarding preference of suboccipital craniotomy or craniectomy.

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Management of Primary Bilateral Trigeminal Neuralgia with Microvascular Decompression: 13-Case Series  Voir?

Bilateral trigeminal neuralgia is a relatively rare disease. Microvascular decompression (MVD) is a safe and effective treatment for unilateral trigeminal neuralgia; however, its utility in bilateral trigeminal neuralgia is unclear. Here, we report our experience with MVD in 13 cases of primary bilateral trigeminal neuralgia.

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Does Advanced Age Affect the Outcomes of Stereotactic Radiosurgery for Cerebral Arteriovenous Malformation?  Voir?

Stereotactic radiosurgery (SRS) is generally considered a minimally invasive treatment modality. However, definitive evidence of the efficacy of SRS in the elderly population is still not available.
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Predictive Factors of Headache Resolution After Chiari Type 1 Malformation Surgery  Voir?

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5-ALA-induced fluorescence in leptomeningeal dissemination of spinal malignant glioma  Voir?

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The History of Neurosurgery in the Hawaiian Islands  Voir?

The field of neurosurgery has a rich and fascinating history. The development of the specialty in Hawaii has been particularly unique, given the state's remote location, indigenous population, and military presence. The life of Dr. Ralph B. Cloward, Hawaii's most noted neurosurgeon, has received some attention in the literature. However, a comprehensive review of this history, including the pre-Cloward and post-Cloward era, is lacking. This article will review and chronicle the development of neurosurgery in Hawaii with special attention to 3 topics: the traveling neurosurgeons of the early 20th century, such as Dr.

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Malignant Peripheral Nerve Sheath Tumor in a Patient With BAP1 Tumor Predisposition Syndrome  Voir?

Germline pathogenic variants in BRCA1-associated protein-1 (BAP1), a nuclear ubiquitin carboxy-terminal hydrolase with evidence suggestive of independent tumor suppressor function, predispose affected families to uveal melanoma, cutaneous melanoma, renal cell carcinoma, malignant mesothelioma, and possibly a range of other tumors and malignancies as part of the BAP1 tumor predisposition syndrome, a recently recognized hereditary cancer syndrome.

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Cervical Vertigo: Historical Reviews and Advances  Voir?

Vertigo is one of the most common presentations in adult patients. Among the various causes of vertigo, so-called cervical vertigo is still a controversial entity. Cervical vertigo was first thought to be due to abnormal input from cervical sympathetic nerves based on the work of Barré and Liéou in 1928. Later studies found that cerebral blood flow is not influenced by sympathetic stimulation. Ryan and Cope in 1955 proposed that abnormal sensory information from the damaged joint receptors of upper cervical regions may be related to pathologies of vertigo of cervical origin.

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Spaceflight and Neurosurgery: A Comprehensive Review of the Relevant Literature  Voir?

Spaceflight and the associated gravitational fluctuations may impact various components of the central nervous system. These include changes in intracranial pressure, the spine, and neurocognitive performance. The implications of altered astronaut performance on critical spaceflight missions are potentially significant. The current body of research on this important topic is extremely limited, and a comprehensive review has not been published. Herein, the authors address this notable gap, as well as the role of the neurosurgeon in optimizing potential diagnostic and therapeutic modalities.

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Prevention of the Rerupture of Collateral Artery Aneurysms on the Ventricular Wall by Early Surgical Revascularization in Moyamoya Disease: Report of Two Cases and Review of the Literature  Voir?

Collateral artery aneurysms are a source of intracranial hemorrhage in moyamoya disease. Several reports have shown that surgical revascularization leads to the obliteration of collateral artery aneurysms. However, its effect on the prevention of rebleeding has not been established, and the optimal timing of the operation remains unclear. The purpose of the present study is to evaluate the effects of surgical revascularization and to investigate the optimal operation timing in patients with moyamoya disease who have ruptured collateral artery aneurysms on the ventricular wall.

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Predicting Prognosis of Patients with Chronic Subdural Hematoma: A New Scoring System  Voir?

Chronic subdural hematoma (CSDH) is a commonly encountered neurosurgical pathology that frequently requires operative intervention. With an increasing ageing demographic, more elderly and comorbid patients will present with symptomatic CSDH. This study evaluated clinical and radiologic factors to create a scoring system to aid prognostication.

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A Submammarian Approach for Cosmetically Improved Implantation of Deep Brain Stimulation Generators  Voir?

Deep brain stimulation (DBS) indications include movement disorders, psychiatric affections, or epilepsy in which patients risk social isolation heightened by abnormal motions or behavioral patterns. Further stigmatization after DBS surgery from head shaving, visible scarring, or disfigurement from bulky lead insertion points should be avoided.

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Multilayer Dura Reconstruction After Thoracoscopic Microdiscectomy: Technique and Results  Voir?

Anterior transthoracic approaches, including thoracoscopic microdiscectomy (TMD), are the preferred techniques for central, broad-based, calcified thoracic disc herniations (TDHs). Dural defects due to manipulation or transdural extension may create a potentially life-threatening subarachnoid-pleural fistula. We evaluate a fast, sutureless technique for reconstructing the dura.

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Influence of Lumbar Lordosis on the Outcome of Decompression Surgery for Lumbar Canal Stenosis  Voir?

Although sagittal spinal balance plays an important role in spinal deformity surgery, its role in decompression surgery for lumbar canal stenosis is not well understood. To investigate the hypothesis that sagittal spinal balance also plays a role in decompression surgery for lumbar canal stenosis, a prospective cohort study analyzing the correlation between preoperative lumbar lordosis and outcome was performed.

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Presentation, Treatment, and Long-Term Outcome of Intrasellar Chordoma: A Pooled Analysis of Institutional, SEER (Surveillance Epidemiology and End Results), and Published Data  Voir?

Chordoma that occurs primarily in the sella turcica is rare and presents unique treatment challenges.
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Training Neurosurgery and Radiation Oncology Residents in Stereotactic Radiosurgery: Assessment Gathered from Participants in AANS and ASTRO Training Course  Voir?

Stereotactic radiosurgery (SRS) represents an expanding approach for neurosurgeons and radiation oncologists. We evaluate educational gaps of senior residents drawn from each specialty as part of a focused SRS course. We also evaluate the strengths and limitations of SRS training in current residency programs of the course residents and faculty.

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Epidermal Growth Factor Receptor Expression Predicts Time and Patterns of Recurrence in Patients with Glioblastoma After Radiotherapy and Temozolomide  Voir?

The aim of this study was to investigate the potential role of epidermal growth factor receptor (EGFR) protein expression in predicting the modality of treatment failure in glioblastoma (GB).
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A Propensity Score Analysis of the Impact of Dexamethasone Use on Delayed Cerebral Ischemia and Poor Functional Outcomes After Subarachnoid Hemorrhage  Voir?

An inflammatory response occurs after aneurysmal subarachnoid hemorrhage (aSAH) and predicts poor outcomes. Glucocorticoids suppress inflammation and promote fluid retention. Dexamethasone is often administered after aSAH for postoperative cerebral edema and refractory headache. Our objective was to examine the impact of dexamethasone use on functional outcomes and delayed cerebral ischemia (DCI) after aSAH.

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3D-Printed Craniosynostosis Model: New Simulation Surgical Tool  Voir?

Craniosynostosis is a complex disease once it involves deep anatomic perception, and a minor mistake during surgery can be fatal. The objective of this report is to present novel 3-dimensional–printed polyamide craniosynostosis models that can improve the understanding and treatment complex pathologies.

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Hidden Blood Loss in Anterior Cervical Fusion Surgery: An Analysis of Risk Factors  Voir?

A retrospective study.
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Prognostic Significance of Ultraearly Hematoma Growth in Spontaneous Intracerebral Hemorrhage Patients Receiving Hematoma Evacuation  Voir?

To investigate the association between ultraearly hematoma growth (uHG) and clinical outcome in patients with spontaneous intracerebral hemorrhage (sICH) receiving hematoma evacuation.
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Microsurgical versus Endovascular Treatments for Blood-Blister Aneurysms of the Internal Carotid Artery: A Retrospective Study of 83 Patients in a Single Center  Voir?

Blood-blister aneurysms (BBAs) of the internal carotid artery (ICA) are challenging lesions with high morbidity and mortality. Both surgical and endovascular approaches have been used to treat BBAs; however, little is known about their safety and efficacy.
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Paul of Aegina (625–690): His Work and His Contribution to Neurologic Surgery: Trephinations and Laminectomies in the Dark Ages  Voir?

The purpose of this historical review is to summarize the work of Paul of Aegina, especially his contribution to the treatment of neurosurgical disorders and trauma. Paul performed trephinations for head injuries in the tradition of the Egyptian and the Greek schools of medicine. However, he was an innovator in the treatment of several spine injuries, as his choice to perform laminectomies and his description of them as safe and successful is unprecedented in the history of the recorded medicine and surgery.

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Multilevel Spondylolysis Repair Using the “Smiley Face” Technique with 3-Dimensional Intraoperative Spinal Navigation  Voir?

Multilevel spondylolysis is a rare cause of progressive lower back pain, and patients who fail conservative management are treated surgically. Direct repair methods can maintain mobility and lead to decreased morbidity compared with spinal fusion in single-level spondylolysis. In this paper, we present a patient with nonadjacent multilevel spondylolysis who underwent the “smiley face” technique of direct multilevel repair without fusion using 3-dimensional intraoperative spinal navigation.

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Subfrontal Schwannoma: Case report and review of literature  Voir?

We present the case of a 46 year old female that presented with right tinnitus, dizziness and bifrontal headache, progressive, starting two years before. Imaging studies reveals an incidentally neoplastic extraaxial homogeneous appearance tumor on the right anterior skull base. She undewernt surgical treatment with total resection of the tumor by a bicoronal approach. The histopathological study reported schwannoma.Although attributte the origin of schwannomas from the the olfactory nerve is near impossible, once they do not have Schwann cells, intracranial supratentorial schwannomas are mainly located in the anterior skull base.

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Intracranial Pressure–Guided Shunt Valve Adjustments with the Miethke Sensor Reservoir  Voir?

Telemetric intracranial pressure (ICP) monitoring seems to be a promising therapy-supporting option in shunt-treated patients. Benefits become obvious when headaches are unspecific and clinical symptoms cannot be related to possible overdrainage or underdrainage. In this study, we evaluated a new telemetric device to individually adjust shunt valves according to ICP measurements.

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Safe Burr Hole Surgery for Chronic Subdural Hematoma Using Dabigatran with Idarucizumab  Voir?

Chronic subdural hematoma (CSDH) is a common intracranial hematoma. The number of patients who undergo anticoagulant therapy including a direct oral anticoagulant (DOAC) is expected to increase. Recently, idarucizumab, the antidote for dabigatran, which is a DOAC, has been developed. We successfully treated CSDH with dabigatran using emergency burr hole surgery and idarucizumab.

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Superselective Thalamotomy in the Most Lateral Part of the Ventralis Intermedius Nucleus for Controlling Essential and Parkinsonian Tremor  Voir?

The minimum and essential thalamic areas for reducing tremor were investigated in cases treated by superselective thalamotomy in the most lateral part of the ventralis intermedius nucleus (mlp-VIM).
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Through Clinical Observation: The History of Priapism After Spinal Cord Injuries  Voir?

Since ancient times, physicians of antiquity noted the occurrence of priapism in some spinal cord injuries. Although priests saw it as a consequence of curses and witchcraft, after clinical observations of the Middle Ages and Renaissance, the first medical hypotheses emerged in the 17th–19th centuries completed and argued by neuroscience and neurology developed in the European laboratories and hospitals. This study aims to present a short overview of the history of clinical observations of posttraumatic male priapism after spinal cord injuries since antiquity until the beginning of the 20th century.

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Spinal Cavernous Angioma Associated with Klippel-Trenaunay-Weber Syndrome: Case Report and Literature Review  Voir?

Klippel-Trenaunay-Weber syndrome (KTWS) is a rare congenital vascular disorder characterized by the classic triad of cutaneous nevi, venous varicosities, and osseous and soft tissue hypertrophy of the affected limb. Various vascular anomalies of the central nervous system have also been described in patients with KTWS. The English language literature to date contains 6 reports of associations between KTWS and spinal cord cavernous angioma (CA), but management of these patients has not been well described.

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Validation of Prognostic Models to Predict Early Mortality in Spontaneous Intracerebral Hemorrhage: A Cross-Sectional Evaluation of a Singapore Stroke Database  Voir?

Numerous scores have been developed for prognostication of outcomes in intracerebral hemorrhage (ICH). Prediction models must be validated internally and externally before they are considered widely applicable. We aim to independently externally validate and compare 3 prediction models (ICH score, ICH grading scale [ICH-GS], and simplified ICH [sICH]) in our population, which has not been previously done.

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Prevalence, Characteristics, and Long-Term Prognosis of Epilepsy Associated with Pediatric Brain Tumors  Voir?

We investigated the prevalence, onset, characteristics, and long-term course of epilepsy disease in children who underwent surgical intervention for diagnosed brain tumors.
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The Extracranial Consequences of Subarachnoid Hemorrhage  Voir?

Subarachnoid hemorrhage (SAH) is managed across the full spectrum of healthcare, from clinical diagnosis to management of the hemorrhage and associated complications. Knowledge of the pathogenesis and pathophysiology of SAH is widely known; however, a full understanding of the underlying molecular, cellular, and circulatory dynamics has still to be achieved. Intracranial complications including delayed ischemic neurologic deficit (vasospasm), rebleed, and hydrocephalus form the targets for initial management.

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Efficacy of Cone Beam Computed Tomography in Treating Cavernous Sinus Dural Arteriovenous Fistula  Voir?

Exact identification of feeding arteries, shunt points, and draining veins is essential in treating cavernous sinus dural arteriovenous fistula (CS dAVF). In addition to digital subtraction angiography (DSA) and 3-dimensional rotational angiography (3DRA), high-resolution cone beam computed tomography (CBCT; especially 80-kv high-resolution cone beam computed tomography) have been performed in recent years. We evaluated the efficacy of CBCT in treating CS dAVF.

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Surgery for Herniated Lumbar Disc in Daily Tobacco Smokers: A Multicenter Observational Study  Voir?

To compare clinical outcomes at 1 year following single-level lumbar microdiscectomy in daily tobacco smokers and nonsmokers.
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Prognostic Factors in Skull Base Chordoma: A Systematic Literature Review and Meta-Analysis  Voir?

Currently, there are a lack of reviews assessing the complete range of prognostic factors in skull base chordoma (SBC). This study aimed to systematically review the published literature on prognostic factors in SBC and establish pooled hazard ratios (HRs) of such factors.
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First Depiction of Flow Voids to Differentiate Pituicytomas from Giant Adenomas  Voir?

Pituicytomas are rare low-grade glial lesions of neurohypophysis or adenohypophysis. They are often misdiagnosed as adenomas due to their similar morphology. Previous reports have underlined their nonspecific aspect. In our experience, presence of flow voids on magnetic resonance, which usually indicate hypervascularized tumors with strong arterial supply, may be a useful sign to identify pituicytomas. Unlike adenomas, pituicytomas are highly vascularized tumors. Second, we emphasize the strong enhancement of these tumors when compared with normal hypophysis, which may be another sign of their hypervascularization.

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The First Experience of Triple Nerve Transfer in Proximal Radial Nerve Palsy  Voir?

Injury to distal portion of posterior cord of brachial plexus leads to palsy of radial and axillary nerves. Symptoms are usually motor deficits of the deltoid muscle; triceps brachii muscle; and extensor muscles of the wrist, thumb, and fingers. Tendon transfers, nerve grafts, and nerve transfers are options for surgical treatment of proximal radial nerve palsy to restore some motor functions. Tendon transfer is painful, requires a long immobilization, and decreases donor muscle strength; nevertheless, nerve transfer produces promising outcomes.

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Primary Diffuse Large B-Cell Lymphoma in a Patient with Rubinstein–Taybi Syndrome: Case Report and Review of the Literature  Voir?

Rubinstein–Taybi syndrome (RSTS) is a rare, congenital syndrome that is known to be associated with neoplasms of various organ systems. Evaluation and treatment of such patients is challenging, given the cognitive delay and heterogeneity of pathologic presentations that define this syndrome.
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The Relevance of Simpson Grade Resections in Modern Neurosurgical Treatment of World Health Organization Grade I, II, and III Meningiomas  Voir?

The Simpson grading system has played an important role in surgical resections of meningiomas. The aim of this study was to determine if this grading system predicts meningioma recurrence in a modern cohort of patients with tumors of all World Health Organization grades.
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Neurosurgical Resident Error: A Survey of U.S. Neurosurgery Residency Training Program Directors' Perceptions  Voir?

Efforts to address resident errors and to enhance patient safety have included systemic reforms, such as the Accreditation Council for Graduate Medical Education's (ACGME's) mandated duty-hour restrictions, and specialty-specific initiatives such as the neurosurgery Milestone Project. However, there is currently little data describing the basis for these errors or outlining trends in neurosurgical resident error.

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Postoperative Intravenous Acetaminophen for Craniotomy Patients: A Randomized Controlled Trial  Voir?

To determine whether opioids during the first 24 postoperative hours were significantly altered when receiving intravenous (IV) acetaminophen during that time compared with those receiving placebo (normal saline).
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Ruptured Persistent Trigeminal Artery Causing Direct Cavernous Sinus Fistula Treated with Pipeline Embolization and Minimal Coiling  Voir?

Rupture of a persistent trigeminal artery associated with development of a cavernous sinus fistula in a traumatic setting is rare. These arteries are typically treated with coil embolization of the cavernous sinus.
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Rare Giant Prevertebral Thoracic Myelomeningocele  Voir?

Here we report a 72-year-old man who presented with complaint of sudden-onset weakness and impaired sensation in the left lower extremity. Radiographic evaluation revealed a congenital malformation with multiple formation defects including a giant thoracic prevertebral myelomeningocele. Following microsurgical detethering of the spinal cord, the patient recovered ambulation with assist. While thoracic myelomeningoceles are themselves rare, in this case the patient presented at a late age and responded well to conservative management.

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Supraorbital Approach for Resection of Clinoidal Meningioma  Voir?

Meningiomas of the clinoid region pose a formidable surgical challenge. Pterional craniotomy is the traditional approach and is often associated with high-risk postsurgical morbidities. In the current presentation, we describe an elderly male with a clinoidal meningioma who underwent a minimally invasive supraorbital craniotomy for tumor resection. Patient presentation, neuroimaging, and surgical techniques (patient position, incision, anatomic consideration, and surgical steps) are described meticulously.

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Optical Coherence Tomography in the Management of Skull Base Fibrous Dysplasia with Optic Nerve Involvement  Voir?

Fibrous dysplasia (FD) of the skull base can manifest with optic nerve compression. As most patients initially do not experience vision loss, controversy exists whether to proceed with prophylactic surgical decompression or elect for conservative observation. Optical coherence tomography (OCT), a physiologic imaging modality widely used to assess the condition of the retinal nerve fiber layer (RNFL), has been useful in monitoring compressive tumors on the optic nerve. This study evaluated potential use of OCT in management of patients with fibrous dysplasia and optic nerve involvement.

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Predictors of Postoperative Recovery Based on Health-Related Quality of Life in Patients after Degenerative Lumbar Scoliosis Surgery  Voir?

To investigate the factors associated with the recovery process of elderly patients after degenerative lumbar scoliosis surgery.
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Outcomes of Two-Isocenter Gamma Knife Radiosurgery for Patients with Typical Trigeminal Neuralgia: Pain Response and Quality of Life  Voir?

To evaluate the effectiveness and safety of 2-isocenter Gamma Knife surgery (GKS) by reviewing patients with trigeminal neuralgia (TN) from the last 10 years.
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Proposed Treatment Paradigm for Intracranial Chondrosarcomas Based on Multidisciplinary Coordination  Voir?

There was no consensus regarding the treatment of intracranial chondrosarcoma (CSA). The study aimed to evaluate the adverse factors for progression-free survival (PFS) and overall survival (OS) and to propose a treatment strategy for CSA.
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Evolution of Prophylaxis Protocols for Venous Thromboembolism in Neurosurgery: Results from a Prospective Comparative Study on Low-Molecular-Weight Heparin, Elastic Stockings, and Intermittent Pneumatic Compression Devices  Voir?

The incidence of venous thromboembolism (VT) in neurosurgical practice is astonishingly high, representing a major cause of morbidity and mortality. Prophylaxis strategies include elastic stockings, low-molecular-weight heparin (LMWH), and intermittent pneumatic compression (IPC) devices.
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Radiosurgery for Treatment of Renal Cell Metastases to Spine: A Systematic Review of the Literature  Voir?

The incidence of renal cell carcinoma (RCC) continues to increase, and the spine is the most common site for bony metastasis. Radiation therapy is one treatment for spinal RCC metastasis. Stereotactic body radiotherapy (SBRT) is a newer treatment that reportedly has benefits over conventional external beam radiotherapy. This study systematically reviewed the current literature on SBRT for metastatic RCC to spine.

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Reversible Parkinson-Like Symptoms in Patient with Bilateral Chronic Subdural Hematomas and Cervical Spinal Stenosis  Voir?

Gait abnormalities have been seen in patients with Parkinson disease or Parkinson-like (P-L) disorders and cervical spinal stenosis. Acute presentation of P-L symptoms has been reported in 24 cases caused by chronic subdural hematomas with 11 cases due to bilateral chronic subdural hematomas. When a patient also presents with cervical spinal stenosis, the correct therapeutic decision between P-L disorders and myelopathy is challenging.

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A Stent-Retrieving into an Aspiration Catheter with Proximal Balloon (ASAP) Technique: A Technique of Mechanical Thrombectomy  Voir?

The best technique for the first attempt at mechanical thrombectomy for acute ischemic stroke is a still matter of debate. In this study, we evaluate the efficacy of a stent-retrieving into an aspiration catheter with proximal balloon (ASAP) technique that uses a series of thrombus extraction by withdrawing the stent retriever into the aspiration catheter and continuous aspiration from the aspiration catheter at the first attempt.

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Is Vertebral Column Resection Necessary in Correcting Severe and Rigid Thoracic Kyphoscoliosis? A Single-Institution Surgical Experience  Voir?

Three-column spinal osteotomies were developed to address severe and stiff kyphoscoliosis. However, the optimal choice of osteotomy in these patients is still unclear. This retrospective study aims to compare the outcomes and complications between grade 4 and grade 5 osteotomies in patients with severe and stiff thoracic kyphoscoliosis.

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Progressive Functional Underdrainage in Cerebrospinal Fluid Shunt-Dependent Women During Pregnancy: Case Report and Review of the Literature  Voir?

Since the 1950s cerebrospinal fluid (CSF) shunt dependency has no longer been a contradiction to normal life, including sexuality and pregnancy in women, because of advances in the understanding of hydrocephalus and shunt technology. Although pregnancy in shunt-dependent women is rare, it causes uncertainty among treating physicians.

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Preoperative Prediction of the Necessity for Anterior Clinoidectomy During Microsurgical Clipping of Ruptured Posterior Communicating Artery Aneurysms  Voir?

Although most posterior communicating artery (PCoA) aneurysms can be clipped easily with excellent results, some require anterior clinoidectomy for safe and complete clipping.
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The Hypoglossal Nerve: Anatomical Study of Its Entire Course  Voir?

Only a few anatomic studies of the entire course of the hypoglossal nerve (cranial nerve XII) have been reported. We analyzed all relationships of the 12th nerve with surrounding structures from the brainstem to the tongue through a microscopic perspective. A comprehensive anatomically and clinically oriented classification of its different segments is proposed.

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Emergency Extracranial-Intracranial Bypass to Revascularize Salvageable Brain Tissue in Acute Ischemic Stroke Patients  Voir?

To present an algorithm based on clinical and radiologic factors, including magnetic resonance imaging (MRI) perfusion/diffusion mismatch (PDM), for the indication of urgent cerebral bypass in patients with acute ischemic stroke.
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Electrodiagnostic and Advanced Neuroimaging Characterization for Successful Treatment of Spinal Extradural Arachnoid Cyst  Voir?

Spinal extradural arachnoid cysts are relatively uncommon. Rarely, large cysts presented with spinal cord compression requiring surgical intervention.
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Unilateral C1 Sagittal Split Fractures: An Unusual Entity Revisited  Voir?

An isolated, unilateral fracture of the C1 lateral mass is a rare condition that has been only minimally described in the literature. Historically, these fractures have predominantly been managed conservatively with either external immobilization or traction.
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Elevation of Proenkephalin 143–183 in Cerebrospinal Fluid in Moyamoya Disease  Voir?

In moyamoya disease (MMD), the causes of differences in clinical features between children and adults and of the dramatic temporal changes in moyamoya vessels are poorly understood. We previously discovered elevated levels of m/z 4588 and m/z 4473 peptides in cerebrospinal fluid (CSF) in patients with MMD. This study examined the amino acid sequences of these peptides and quantified in specimens.

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Pattern of Closure of Skull Base Synchondroses in Crouzon Syndrome  Voir?

The age of closure of skull base synchondroses has never been analyzed in a homogenous population of children with Crouzon syndrome.
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Clinical Presentation, Diagnosis, and Surgical Treatment of Spontaneous Cervical Intradural Disc Herniations: A Review of the Literature  Voir?

Spontaneous cervical intradural disc herniation (IDH) is a rare occurrence with limited and disparate information available regarding its presentation, diagnosis, and treatment. However, its accurate detection is vital for planning surgical treatment. In this review of the literature, we collected data from all cervical IDHs described to date. Particular attention was paid to diagnostic findings, surgical approach, and causation for cervical IDH, especially at the cervicothoracic junction.

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Cranial Base Meningiomas  Voir?

Meningiomas are the most common primary intracranial neoplasm, accounting for 36% of all primary brain tumors diagnosed annually in the United States.1,2 The overall incidence of meningiomas in the general population is 2.3/100,000 people. There are sex and age differences; they are overall more common in women, and the incidence increases with each decade of life. They are rare in children and young adults.1,2 The incidence of meningiomas peaks in the 60- to 69-year age group among men and in the 70- to 79-year age group among women.

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Syrinx to Subarachnoid Shunting for Syringomyelia  Voir?

Surgery for syringomyelia generally aims to treat the underlying cause, if it is known. Optimal management is unclear for idiopathic syringomyelia, or when treatment of the putative cause has failed or is high risk. Syrinx to subarachnoid shunting is an option for these cases; a series is reported to assess the outcomes of this approach.

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Suturing Treatment for Blood Blister–Like Aneurysm in Supraclinoid Segment of Internal Carotid Artery  Voir?

Blood blister–like aneurysms (BBAs) are rare but dangerous and challenging to treat. Recurrence and rebleeding are often reported, and many neurosurgeons and interventional radiologists are discouraged by such poor outcomes. Currently, there is no standard method to treat this type of aneurysm.
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Outcomes After Transcranial and Endoscopic Endonasal Approach for Tuberculum Meningiomas—A Retrospective Comparison  Voir?

Degree of resection and visual outcome are the main concerns in the surgical resection of tuberculum sellae meningioma (TSM). In addition to the transcranial approach (TCA), the endoscopic endonasal approach (EEA) has been used increasingly. However, the controversy regarding the optimal surgical approach is not clearly resolved.

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Analogous Three-Dimensional Constructive Interference in Steady State Sequences Enhance the Utility of Three-Dimensional Time of Flight Magnetic Resonance Angiography in Delineating Lenticulostriate Arteries in Insular Gliomas: Evidence from a Prospective Clinicoradiologic Analysis of 48 Patients  Voir?

Three-dimensional (3D) time of flight (TOF) imaging is the current gold standard for noninvasive, preoperative localization of lenticulostriate arteries (LSAs) in insular gliomas; however, the utility of this modality depends on tumor intensity.
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Predisposing Factors of Fracture Nonunion After Posterior C1 Lateral Mass Screws Combined with C2 Pedicle/Laminar Screw Fixation for Type II Odontoid Fracture  Voir?

The aim of this study was to explore the predisposing factors for fracture nonunion after a lateral screw was combined with C2 pedicle/laminar screw for a type II odontoid fracture and hopefully provide references in decision making and surgical planning for spinal surgeons.
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Superficial Siderosis Associated with Pineal Cavernous Malformation  Voir?

Cavernous malformations in the pineal region are rare and difficult to anticipate from preoperative evaluation in patients with pineal apoplexy. We herein report the first case of a pineal cavernous malformation with superficial siderosis. Radiological findings were helpful in identifying the presence of the cavernous malformation.

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Prolonged Intracisternal Papaverine Toxicity: Index Case Description and Proposed Mechanism of Action  Voir?

Intracisternal papaverine (iPPV) is a vasodilator used for prophylaxis of intraoperative vasospasm during aneurysmal clipping. Postoperative side effects of iPPV include transient cranial nerve palsies, most commonly mydriasis owing to oculomotor nerve involvement, with rapid resolution.
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Transdural Spinal Cord Herniation: Tips and Tricks  Voir?

Recognition of transdural spinal cord herniation has increased over the past decade. This condition remains little known, particularly outside the specialized fields of spinal surgery and neuroradiology, leading to a significant delay in clinical diagnosis and treatment. It should be considered among the differential diagnoses in patients with gradual-onset lower-limb weakness of presumed spinal origin. Reaching a diagnosis using magnetic resonance imaging is essential to refer patients for surgery before their myelopathy worsens.

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Endoscopic Transsphenoidal Surgery Outcomes in 331 Nonfunctioning Pituitary Adenoma Cases After a Single Surgeon Learning Curve  Voir?

The outcomes of recent endoscopic surgery of nonfunctioning pituitary adenomas (NFPAs) are controversial when compared with traditional microscopic surgery. We aimed to assess the outcomes of endoscopic transsphenoidal surgeries performed by 1 surgeon with 7 years of experience and elucidate the predictive factors for surgical outcomes for NFPAs.

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Delayed Complications After Transsphenoidal Surgery for Pituitary Adenomas  Voir?

Perioperative complications after transsphenoidal surgery for pituitary adenomas have been well documented in the literature; however, some complications can occur in a delayed fashion postoperatively, and reports are sparse about their occurrence, management, and outcome. Here, we describe delayed complications after transsphenoidal surgery and discuss the incidence, temporality from the surgery, and management of these complications based on the findings of studies that reported delayed postoperative epistaxis, delayed postoperative cavernous carotid pseudoaneurysm formation and rupture, vasospasm, delayed symptomatic hyponatremia, hypopituitarism, hydrocephalus, and sinonasal complications.

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Cerebrospinal Fluid Leak at Percutaneous Exit of Ventricular Catheter as a Crucial Risk Factor for External Ventricular Drainage–Related Infection in Adult Neurosurgical Patients  Voir?

The placement of a ventricular catheter for temporary cerebrospinal fluid (CSF) diversion is associated with a considerable risk of CSF infection. The authors investigated the effect of a CSF leak on CSF-related infection and the predisposing factors for a CSF leak.
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Preoperative Navigated Transcranial Magnetic Stimulation and Tractography to Guide Endoscopic Cystoventriculostomy: A Technical Note and Case Report  Voir?

To report a technique for endoscopic cystoventriculostomy guided by preoperative navigated transcranial magnetic stimulation (nTMS) and tractography in a patient with a large speech eloquent arachnoid cyst.
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Supraorbital Keyhole Approach to the Sella and Anterior Skull Base via a Forehead Wrinkle Incision  Voir?

To evaluate safety and effectiveness of supraorbital keyhole approach to the sella and anterior skull base via a forehead wrinkle incision.
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Identification of Driver Genes and Key Pathways of Glioblastoma Shows JNJ-7706621 as a Novel Antiglioblastoma Drug  Voir?

The aim of this study is to identify novel targets of diagnosis, therapy, and prognosis for glioblastoma, as well as to verify the therapeutic effect of JNJ-7706621 regarding glioblastoma.
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Novel Application of Time-Spatial Labeling Inversion Pulse Magnetic Resonance Imaging for Diagnosis of External Hydrocephalus  Voir?

Although a subdural fluid collection frequently is observed, diagnostic methods that differentiate between the subdural collection caused by external hydrocephalus and that caused by subdural hygroma have not been established. Here, we report a case of external hydrocephalus caused by Gliadel-induced eosinophilic meningitis that has been previously reported in only 1 case and can be diagnosed by time-spatial labeling inversion pulse magnetic resonance imaging (time-SLIP MRI).

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Individual Variability of the Human Cerebral Cortex Identified Using Intraoperative Mapping  Voir?

Intraoperative functional cortical mapping using direct electrical stimulation may show a wider individual variability than suggested by noninvasive imaging data of healthy subjects.
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Reappraisal of Neonatal Greenstick Skull Fractures Caused by Birth Injuries: Comparison of 3-Dimensional Reconstructed Computed Tomography and Simple Skull Radiographs  Voir?

The most common birth-associated head injuries during vaginal delivery are cephalhematomas and subgaleal hematomas. Cranial injuries are rarely encountered. The neonate cranium is soft and pliable, and greenstick skull fractures (GSFs) are expected to be more frequent than linear or depressed fractures, but they are extremely difficult to detect with simple skull radiography. As a result, no reports have been issued on this topic to date. Recent reports suggest that technological advances in 3-dimensional (3D) computed tomography (CT) have successfully enhanced the diagnostic accuracy for cranial fractures.

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Modular Classification of Endoscopic Endonasal Transsphenoidal Approaches to Sellar Region: Anatomic Quantitative Study  Voir?

Endoscopic visualization does not necessarily correspond to an adequate working space. The need for balancing invasiveness and adequacy of sellar tumor exposure has recently led to the description of multiple endoscopic endonasal transsphenoidal approaches. Comparative anatomic data on these variants are lacking.

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Comparison of Quality Metrics for Pediatric Shunt Surgery and Proposal of the Negative Shunt Revision Rate  Voir?

Shunt surgery is common in pediatric neurosurgery and is associated with relevant complication rates. We aimed to compare previously published metrics in a single data set and propose the Negative Shunt Revision Rate (NSRR), defined as proportion of shunt explorations revealing a properly working system, as a new quality metric.

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Severe Subarachnoid Hemorrhage Due to Fusiform Lateral Anterior (A1) Artery Perforator Aneurysm with “Spontaneous Resolution”  Voir?

Perforating arteries are thin and long vessels which originate from the main cerebral arteries. Subarachnoidal hemorrhage from a perforator aneurysm is rare. Here, we report on a 70-year-old woman who presented with severe subarachnoid hemorrhage from a fusiform lateral anterior (A1) artery perforator aneurysm. Unexpectedly, digital subtraction angiography was non-diagnostic. MR imaging, however, demonstrated occlusion of the aneurysm secondary to thrombosis. Surgery was performed to remove the associated hematoma, and histopathological examination verified intraaneurysmal thrombosis.

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Surgery and Radiotherapy for Symptomatic Spinal Metastases Is More Cost Effective Than Radiotherapy Alone: A Cost Utility Analysis in a U.K. Spinal Center  Voir?

Surgery for symptomatic spinal metastases is effective at prolonging ambulation and life, but it can appear costly at first glance. We have studied the difference between the cost of surgery and reimbursement received, and the cost-effectiveness of surgery in a U.K. tertiary referral spinal center.
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Comparison of Chronic Dysphagia in Standalone versus Conventional Plate and Cage Fusion  Voir?

Standalone cages have gained popularity because of their ease of implantation, reduced operating time, and lower profile compared with traditional plate and cage systems. The aim of this study was to compare the risk of chronic dysphagia between those who undergwent anterior cervical discectomy and fusion (ACDF) with traditional plating techniques and those who underwent standalone procedures.

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Recurrent Cerebral Hemorrhage in Normal Pregnancy Secondary to Mycotic Pseudoaneurysms Related to Choriocarcinoma  Voir?

Choriocarcinoma coexisting with or after normal pregnancy is extremely rare. To our knowledge, our case report is the first time cerebral mycotic pseudoaneurysms from choriocarcinoma have been proven angiographically.
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Suturing and Dural Wrapping for a Blood Blister–Like Aneurysm on the Supraclinoid Segment of the Internal Carotid Artery due to Dissection  Voir?

Internal carotid artery (ICA) reconstruction is still the most effective treatment for a blood blister–like aneurysm (BBA) on the supraclinoid segment of the ICA, and clipping after wrapping has the most precise effects. However, the materials used are most often artificial. This study examined the use of autologous dura to replace the artificial materials used for wrapping after suturing a BBA.

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Surgical Management of Giant Intracranial Meningioma: Operative Nuances, Challenges, and Outcome  Voir?

The giant intracranial meningioma (GIM) constitutes a different spectrum of brain tumors that invade the vital neurovascular structures, which makes the primary mode of treatment, surgery, a technically challenging one. The surgery for GIM is unique because of the large size of the tumor, prominent vascularity, entangling and limited visualization of various neurovascular structures, and severe cerebral edema. This study reports the authors surgical experience of 80 GIM cases, the operative challenges and surgical outcome.

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The Endoscopic Buccal Fat Pad Flap for Closure of Skull Base Defects: A Report of 5 Cases  Voir?

To demonstrate the clinical utility of the buccal fat pad flap (BFPF) for closing a variety of skull base defects.
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Prevention and Treatment of Hyponatremia in Patients with Subarachnoid Hemorrhage: A Systematic Review  Voir?

Current guidelines for the management of hyponatremia in patients with subarachnoid hemorrhage (SAH) are not based on a systematic assessment of the literature. We evaluated published studies on the efficacy and safety of current preventative and treatment strategies for hyponatremia in patients with SAH.

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Extraforaminal Discal Cyst as Cause of Radiculopathy  Voir?

We report the first extraforaminal location of a lumbar discal cyst. The patient was treated by hemilaminectomy, arthrectomy, cyst resection, and unilateral arthrodesis, achieving complete release of the nerve root. Extraforaminal lumbar discal cyst may represent an unexpected cause of sciatic pain with favorable outcome after surgical resection.

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Contact Aspiration with the New ARC Catheter for Thrombectomy of Acute Ischemic Stroke: Single-Center Results  Voir?

Contact aspiration has gained growing acceptance in endovascular stroke therapy. The safety and efficacy data of the novel ARC catheter (Medtronic, Irvine, California, USA) used for intracranial thrombectomy have been poorly evaluated thus far. We report our preliminary results with the ARC with regard to angiographic reperfusion, duration of thrombectomy, safety, and clinical outcome at 90 days.

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Early Hemodynamic Changes Based on Initial Color-Coding Angiography as a Predictor for Developing Subsequent Symptomatic Vasospasm After Aneurysmal Subarachnoid Hemorrhage  Voir?

Prediction of vasospasm after aneurysmal subarachnoid hemorrhage (aSAH) remains imperfect and currently relies on clinical and radiographic characteristics. Whether early hemodynamic changes may refine risk stratification for delayed vasospasm (DV) after aSAH was analyzed.
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World Health Organization Grade II Meningiomas: The Role of Adjuvant/Salvage Gamma Knife Surgery After Initial Surgery and Prognostic Factor Assessment  Voir?

This study was performed to evaluate the efficiency of Gamma Knife surgery (GKS) on reducing recurrence of World Health Organization (WHO) grade II meningiomas after surgery and to define the risk factors associated with tumor recurrence/progression and patient's death.
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Successful Surgical Resection of Spinal Artery Aneurysms: Report of 3 Cases  Voir?

Spinal artery aneurysms (SAAs) are extremely rare lesions that can occur in isolation or associated with vascular malformations. Herein, we present 3 unusual cases of SAAs and discuss imaging, diagnosis, and surgical management strategies.
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Mikulicz Disease Mimicking Intraorbital Tumors  Voir?

We report a case of Mikulicz disease (MD), an immunoglobulin G4 (IgG4)-related disease that affects the lacrimal and salivary glands. IgG4-related disease is a relatively new clinical entity and is not commonly encountered by neurosurgeons. MD sometimes mimics intraorbital tumors such as malignant lymphoma but responds well to corticosteroid treatment. Thus it is important to recognize the clinical and radiographic features of MD.

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Factors Associated with 90-Day Outcomes of Patients with Acute Posterior Circulation Stroke Treated By Mechanical Thrombectomy  Voir?

Early recanalization of acute posterior circulation stroke caused by large intracranial vessel occlusion by mechanical thrombectomy with stent retrievers may improve the outcome of patients. However, evidence of patient selection is still lacking. This study investigated the prognostic factors of acute posterior circulation stroke caused by large intracranial arterial occlusion when treated with stent-retriever thrombectomy.

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Postnatal Management of Myelomeningocele: Outcome with a Multidisciplinary Team Experience  Voir?

Myelomeningocele (MMC) is a complex neural tube defect. Few studies report the results of modern postnatal management. The goal of this study was to report the long-term outcome of a multidisciplinary approach of patients with MMC.
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Orbital Compartment Syndrome After Frontotemporal Craniotomy: Case Report and Review of Literature  Voir?

Orbital compartment syndrome (OCS) is a rare condition characterized by increased intraorbital pressure and hypoperfusion of critical neural structures. It is usually associated with external ophthalmoplegia. We report a case of postoperative OCS following a frontotemporal craniotomy and review pertinent literature.

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Agenesis of Anterior Falx Cerebri in Patient with Planned Interhemispheric Approach to Third Ventricle Mass  Voir?

Complete or partial agenesis of the falx cerebri may occur in pediatric patients with developmental anomalies. However, isolated agenesis of the falx in a developmentally normal adult is exceptionally rare. We describe the first reported case of a patient with a third ventricular mass associated with partial agenesis of the anterior falx cerebri, a circumstance that influenced surgical access to a third ventricular epidermoid cyst.

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Physiologic Growth Hormone–Replacement Therapy and Craniopharyngioma Recurrence in Pediatric Patients: A Meta-Analysis  Voir?

A systematic review and meta-analysis were conducted to examine the effect of growth hormone–replacement therapy (GHRT) on the recurrence of craniopharyngioma in children.
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Postoperative Cerebral Ischemia Due to Hypotension in Moyamoya Patient with Autonomic Dysfunction  Voir?

Hypotension is a significant risk factor for the development of ischemic complication following revascularization surgery for moyamoya disease (MMD). However, it is currently unknown whether autonomic dysfunction also plays a role.
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Training of Intra-Axial Brain Tumor Resection Using a Self-Made Simple Device with Agar and Gelatin  Voir?

Self-made devices composed of agar and gelatin gel were used for resident training in intra-axial brain tumor resection. The mixture gel of agar and gelatin is retractable and can be suctioned. Hardness of the gel depends on the concentration of the solution. Therefore, by changing the concentration, it is easy to make gels of various hardness.

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Intracranial Meningioma in Patients Age <35 Years: Evolution of the Disease in the Era of Human Immunodeficiency Virus Infection  Voir?

Intracranial meningiomas are most common among patients in their fifth to seventh decade of life and rare in children and young adults. They constitute 1.5% of all neoplasms in patients age <20 years, but account for 13.5% of all neoplasms in patients age 20–34 years. They are often associated with hereditary or familial syndromes in children and young adults, and tend to be of high grade. Here we describe the histopathological subtypes of intracranial meningioma between human immunodeficiency virus 1 (HIV-1)-seropositive patients and the general population with intracranial meningiomas 35 years old and younger.

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Contralateral Approach to Middle Cerebral Artery Aneurysms: An Anatomical-Clinical Analysis to Improve Patient Selection  Voir?

A contralateral approach to aneurysm clipping in cases of bilateral middle cerebral artery (MCA) aneurysms reduces surgical time and cost. However, there is a lack of evidence for objective patient selection. In this study, we assessed the change in surgical freedom along the contralateral MCA to provide objective evidence for patient selection.

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Subtemporal Approach for Gross Total Resection of Retrochiasmatic Craniopharyngiomas: Our Experience on 30 Cases  Voir?

Surgical treatment of retrochiasmatic craniopharyngiomas is associated with higher rates of complications, mortality, failure of complete removal, and recurrence compared with craniopharyngiomas located elsewhere. These tumors lie behind the optic chiasm and when large can extend upward into the third ventricle and downward along the brain stem, making their adequate exposure challenging. Most of the proposed techniques either use a translamina terminalis route or require wide bony exposures. In this study, we assessed the feasibility of a subtemporal approach for achieving gross total resection of retrochiasmatic craniopharyngiomas.

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Quality and Quantity of Memories in Patients Who Undergo Awake Brain Tumor Resection  Voir?

Awake craniotomy is performed with increasing frequency for brain tumor surgery in eloquent areas; however, little is known about patients' memories of this procedure. Here we retrospectively analyzed the quality and quantity of memories in a series of patients treated following a standardized protocol.

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Acute Response of Neurons: An Early Event of Neuronal Cell Death After Facial Nerve Injury  Voir?

To research the early acute response events of facial nerve injury.
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Big Data and Clinical Research in Traumatic Brain Injury  Voir?

“Talk and die” in traumatic brain injury (TBI) was initially described in 1975 by Reilly et al1 in patients who clinically deteriorated after initial evaluation suggested signs of mild brain injury. Description of the talk and die phenomenon evolved into theories of secondary injury in TBI, in which postinjury inflammation, edema, and loss of autoregulation exacerbated the primary injury, and was associated with worse outcomes.2 Since the 1970s, advances in medical care have allowed for a much better understanding of TBI as a multifaceted disease process.

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Effect of Single-Level Transforaminal Lumbar Interbody Fusion on Segmental and Overall Lumbar Lordosis in Patients with Lumbar Degenerative Disease  Voir?

To investigate the ability of transforaminal lumbar interbody fusion (TLIF) to improve lumbar lordosis (LL).
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Lumbar Disk Arthroplasty for Degenerative Disk Disease: Literature Review  Voir?

Low back pain is the principal cause of long-term disability worldwide. We intend to address one of its main causes, degenerative disk disease, a spinal condition involving degradation of an intervertebral disk. Following unsuccessful conservative treatment, patients may be recommended for surgery. The two main surgical treatments for lumbar degenerative disk disease are lumbar fusion: traditional standard surgical treatment and lumbar disk arthroplasty, also known as lumbar total disk replacement.

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Endovascular Treatment of Ruptured Vertebrobasilar Dissecting Aneurysms Using Flow Diversion Embolization Devices: Single-Institution Experience  Voir?

Treatment of ruptured posterior circulation dissecting aneurysms is technically challenging with potentially high morbidity and mortality. We sought to assess the safety and feasibility of using a flow-diversion device (FDD) and a specific acute antiplatelet aggregation protocol in the management of ruptured dissecting aneurysms.

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Pediatric Intracranial Aneurysms: Considerations and Recommendations for Follow-Up Imaging  Voir?

Pediatric intracranial aneurysms (IAs) are rare. Compared with adult IAs, they are more commonly giant, fusiform, or dissecting. Treatment often proves more complex, and recurrence rate and de novo aneurysmogenesis incidence are higher. A consensus regarding the most appropriate algorithm for following pediatric IAs is lacking.

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Machine Learning and Neurosurgical Outcome Prediction: A Systematic Review  Voir?

Accurate measurement of surgical outcomes is highly desirable to optimize surgical decision-making. An important element of surgical decision making is identification of the patient cohort that will benefit from surgery before the intervention. Machine learning (ML) enables computers to learn from previous data to make accurate predictions on new data. In this systematic review, we evaluate the potential of ML for neurosurgical outcome prediction.

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Microsphere Embolization of Hypervascular Posterior Fossa Tumors  Voir?

Preoperative embolization of highly vascular tumors of the posterior fossa can decrease morbidity and operative blood loss. No clear consensus exists for the embolization agent of choice for optimal devascularization of these tumors. The purpose of this study was to assess effectiveness of microsphere embolization in reducing tumor hypervascularity before surgical resection.

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Anterior Cervical Discectomy with Instrumented Allograft Fusion: Lordosis Restoration and Comparison of Functional Outcomes among Patients of Different Age Groups  Voir?

To investigate clinical parameters of anterior cervical discectomy and fusion (ACDF) treatment and outcomes using osseous allografts in different age groups, study the postoperative results of restoration of lordosis, and evaluate the utility of bone allografts for ACDF, including graft subsidence.
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Internal Carotid Artery and Its Relationship with Structures in Sellar Region: Anatomy Study and Its Clinical Applications  Voir?

Complications of the ICA in surgeries are rare but severe. This study aims to locate the ICA with 5 stationary bony structures in the sellar region: the anterior clinoid process (ACP), the tuberculum sellae, the bottom of the hypophyseal fossa, the posterior edge of the hypophyseal fossa and the post clinoid process and do measurements to determine their anatomic relationship with the ICA.

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Analysis of Survival Prognosis for Children with Symptomatic Optic Pathway Gliomas Who Received Surgery  Voir?

The feasibility and prognosis of surgical treatment for children with optic pathway gliomas (OPGs) is controversial. Therefore this study attempted to evaluate the effects of surgery and discuss prognostic factors related to the survival of children with symptomatic OPGs.
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Image: Extensive Pneumocephalus  Voir?

A 53-year-old man was admitted to our hospital following a traffic accident. He had been riding a bicycle and was knocked down by a motorcycle, injuring the right side of his forehead. Upon arrival at our department, he was conscious and we found no cerebrospinal fluid rhinorrhea or otorrhea. His Glasgow Coma Scale score was 15.Neurologic examination was normal, except for reduced vision in his right eye. Head computed tomography showed extensive pneumocephalus involving the cisterna ambiens, prepontine and suprasellar cisterns, and temporal, frontal, parietal, and occipital lobes.

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Posterior Vertebral Column Resection Through Unilateral Osteotomy Approach for Old Lumbar Fracture Combined with Kummell Disease  Voir?

Kummell disease is a clinical syndrome characterized by minor spinal trauma with a symptom-free period from months to years, followed by progressive painful kyphosis. Many surgical options for Kummell disease have been reported in the previous literature; however, no study has mentioned the surgical strategy for patients whose fractured vertebrae were severely compressed and only a slice of superior and inferior end plate was left.

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Intradural Spinal Tumors—Review of Postoperative Outcomes Comparing Intramedullary and Extramedullary Tumors from a Single Institution's Experience  Voir?

Intradural spinal tumors are rare and can be classified into extramedullary or intramedullary. They commonly present with symptoms such as intractable back pain or neurologic deficits. We retrospectively reviewed 91 cases of intradural spinal tumors that underwent surgery in our institution from 2011 to 2016 and assessed their clinical outcomes. The majority of intradural tumors were extramedullary (89%), and the most common pathology was schwannoma (38.5%) followed by meningioma (29.7%). Comparing extramedullary versus intramedullary tumors, both groups experienced similar improvement in neurologic status post surgery (92.6% vs.

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Benchmarking Distance Control and Virtual Drilling for Lateral Skull Base Surgery  Voir?

Novel audiovisual feedback methods were developed to improve image guidance during skull base surgery by providing audiovisual warnings when the drill tip enters a protective perimeter set at a distance around anatomic structures (“distance control”) and visualizing bone drilling (“virtual drilling”).

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Validation of a Predictive Scoring System for Ventriculoperitoneal Shunt Insertion After Aneurysmal Subarachnoid Hemorrhage  Voir?

Hydrocephalus is a frequently encountered complication in the context of aneurysmal subarachnoid hemorrhage (aSAH). Here, we performed an external validation of the recently proposed postsubarachnoid shunt scoring (PS3) system, which aims to stratify patients presenting with aSAH based on their relative risk of requiring ventriculoperitoneal (VP) shunt insertion.

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Cerebral Aneurysm Associated with an Arachnoid Cyst: 3 Case Reports and a Systematic Review of the Literature  Voir?

Arachnoid cysts and intracranial aneurysms are not rare, but it is unusual for an aneurysm to be associated with an arachnoid cyst. The objective of this study was to reveal the association between arachnoid cysts and intracranial aneurysms.
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Improved Microvascular Decompression in Treating Trigeminal Neuralgia: Application of Nest-Shaped Teflon Fibers  Voir?

To develop an improved technique for microvascular decompression (MVD) surgery using nest-shaped Teflon fibers.
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Comparative Study of Cortical Bone Trajectory-Pedicle Screw (Cortical Screw) Versus Conventional Pedicle Screw in Single-Level Posterior Lumbar Interbody Fusion: A 2-Year Post Hoc Analysis from Prospectively Randomized Data  Voir?

The aim of this study was to report 2-year follow-up outcomes of posterior lumbar interbody fusion (PLIF) with cortical bone trajectory-pedicle screw (CS), in terms of fusion rates, clinical outcomes, surgical outcomes, and complications, and to compare these outcomes with outcomes for PLIF with conventional pedicle screw (PS).

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Endovascular Treatment of Unruptured Intracranial Aneurysms by the Woven EndoBridge Device (WEB): Are There Any Aspects Influencing Aneurysm Occlusion?  Voir?

The experience with Woven EndoBridge (WEB) device is still limited. The aim of this study is to discuss the efficacy of this new device, focusing on any anatomical and procedural factors influencing aneurysm occlusion.
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Computed Tomography Angiography Spot Sign as an Indicator for Ultra-Early Stereotactic Aspiration of Intracerebral Hemorrhage  Voir?

Ultra-early surgical clot removal relieves mechanical compression on adjacent normal brain tissue and limits the toxic effects of a hematoma, which might improve the outcomes in patients with intracerebral hemorrhage (ICH); however, hematoma expansion frequently occurs within 20 hours after the ictus, and this limits the use of ultra-early surgery. Computed tomography angiography spot sign was recently validated as an important predictor of hematoma expansion in patients with ICH.

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Call to Action: Study to Determine Etiology of Catastrophic Brain Injuries in High-Impact Sporting Activities Within Adolescent Population  Voir?

Catastrophic injuries in sport are always tragic events, especially if they occur in the high school/adolescent population (ages 14–18). The incidence of such an injury as a result of direct participation in American Football within this cohort is extremely low. According to the National Federation of State High School Associations, there are 1.1 million high school players participating in competitive American football yearly.1 The National Center for Catastrophic Sport Injury Research (NCCSIR), which performs injury surveillance, reported that between 1982 and 2015 there were 886 catastrophic injuries, including 126 deaths, as a direct result of playing high school American football.

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Primary Intraosseous Lymphoplasmacyte-Rich Meningioma  Voir?

Lymphoplasmacyte-rich meningioma is an uncommon variant of meningioma, and that arising in the extradural site is extremely rare.
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Diskogenic Reactivation of Herpes Zoster  Voir?

Varicella zoster virus remains dormant in the dorsal root ganglia after childhood exposure to chickenpox. Its reactivation results in herpes zoster, otherwise known as shingles, which is a painful vesicular rash in a dermatomal distribution. We present a case of foraminal disk extrusion that resulted in radicular pain in a dermatomal distribution. The resultant inflammatory response around the dorsal root ganglion triggered an episode of shingles, which elegantly highlights the pathophysiology of this condition at a gross anatomic level.

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Natalizumab-Associated Primary Central Nervous System Lymphoma  Voir?

Natalizumab, a selective adhesion molecule inhibitor binding to an α-4 subunit of integrin, has emerged to be an effective immunomodulator, especially in the treatment of relapsing-remitting multiple sclerosis and Crohn disease. Recent reports documenting the development of primary central nervous system lymphoma (PCNSL) as a result of its administration have been concerning, and they trigger a debate about a possible causal association. In our report, we provide a comprehensive review of the literature on lymphoma development after natalizumab use, and we report an additional case of PCNSL development in a young woman who received natalizumab for her Crohn disease.

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Lymphoblastic Lymphoma Involving Multiple Vertebrae  Voir?

Acute lymphoblastic lymphoma is a malignant hematologic disease in childhood but rarely initially involves epidural compartment in adults. A 20-year-old male presented with progressive osphyalgia with constipation. Contrasted magnetic resonance imaging showed multiple vertebrae of hypointense T1 signals and an intraspinal epidural lesion. Subtotal resection was achieved. Histopathology suggested malignant B-cell lymphoma with Ki-67 of 90% and positivity of leukocyte common antigen. A bone marrow biopsy was unequivocally diagnostic of B-cell acute lymphoblastic lymphoma followed by chemotherapy (methotrexate) and partial recovery was observed.

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Maggots in the Brain: Sequelae of Ignored Scalp Wound  Voir?

A 26-year-old male had suffered a burn injury to his scalp in childhood and ignored it. He presented with a complaint of something crawling on his head. Inspection of his scalp revealed multiple maggots on the brain surface with erosion of overlying bone and scalp. He was successfully managed by surgical debridement and regular dressing.

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Patient with Recurrent Anterior Cerebral Artery Dissecting Aneurysm After Stent-Assisted Coil Embolization Successfully Treated with A3-A3 Anastomosis  Voir?

With recent advances in endovascular devices and techniques, the use of endovascular treatment has been reported for intracranial dissecting aneurysms. However, the efficacy of this endovascular approach for intracranial dissection is still unknown. We report the case of a patient with a recurrent anterior cerebral artery (ACA) dissecting aneurysm after endovascular treatment.

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Intracranial Aneurysms in Adult Moyamoya Disease  Voir?

The prevalence of aneurysm formation in adults with moyamoya disease (MMD) is approximately 14%, and it represents a major potential hemorrhagic risk. We aimed to study the characteristics of intracranial aneurysms occurring in patients with MMD. We retrospectively reviewed our 10-year experience of patients with intracranial aneurysms and a diagnosis of MMD at our hospital.

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The Effect of July Admission on Inpatient Morbidity, Mortality, and Discharge Disposition After Endovascular Coiling in Subarachnoid Hemorrhage  Voir?

To investigate effect of July admission on short-term outcome after endovascular coiling of patients with subarachnoid hemorrhage (SAH) owing to ruptured aneurysms.
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Transoral Decompression and Stabilization of the Upper Cervical Segments of the Spine Using Custom-Made Implants in Various Pathologic Conditions of the Craniovertebral Junction  Voir?

Surgical treatment of patients with atlantoaxial instability caused by pathologic changes of the skull base and craniovertebral junction combined with anterior compression of the brain stem is still associated with substantial technical difficulties and remains a matter of debate. Currently, anterior stabilization of the atlantoaxial junction is a promising approach that allows for the resection of the pathologic lesion of the skull base and craniovertebral junction with subsequent stabilization of C1–C2 or C1–C3 in 1 stage.

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Effect of Interlaminar Epidural Steroid Injection in Patients with Central Cervical Spinal Stenosis  Voir?

To investigate the effect of interlaminar epidural steroid injection (ESI) for management of central cervical spinal stenosis–induced posterior neck pain.
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Two-Year Results of the Prospective Spine Treatment Outcomes Study: Analysis of Postoperative Clinical Outcomes Between Patients with and without a History of Previous Cervical Spine Surgery  Voir?

History of previous cervical spine surgery is a frequently cited cause of worse outcomes after cervical spine surgery. The purpose of this study was to determine any differences in clinical outcomes after cervical spine surgery between patients with and without a history of previous cervical spine surgery.

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Low-Pressure Hydrocephalus: A Case Report and Review of the Literature  Voir?

The entity of low-pressure hydrocephalus remains poorly understood and thoroughly debated. Symptomatic improvement accompanied by decrease in ventricular size after prolonged subatmospheric drainage has been well documented, and this method has been considered the criterion standard of management. Few studies have examined alternative treatment options, either to avoid the risks associated with prolonged external ventricular drainage or because of the failure of traditional methods.

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Emergency Optic Canal Decompression for Vision Salvage in Fibrous Dysplasia  Voir?

The most common neurologic manifestations of fibrous dysplasia (FD) are vision and hearing loss. Optic decompression for progressive vision loss has been shown to yield positive results in terms of visual outcomes; however, emergency optic decompression surgery for sudden loss of vision in FD has not to date been reported in the pediatric population. We report the first case of FD presenting with sudden vision loss and successfully managed with emergency optic decompression.

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Anterior Communicating Artery Aneurysm Morphology and the Risk of Rupture  Voir?

Recently, with improvements in computed tomography angiography and digital subtraction angiography, the assessment of certain morphologic traits of anterior communicating artery aneurysms (ACoAA) has drawn great attention. The determination of specific factors associated with rupture would provide much-needed guidance for the treatment of unruptured intracranial aneurysms, such as surgical clipping or endovascular coiling. Morphologic factors include, but are not limited to, aneurysm size, number, shape, dome direction, neck/dome ratio, and relationship of the aneurysm to the surrounding vessels.

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Evaluating the Effectiveness and the Impact of Donated Neurosurgical Equipment on Neurosurgical Units in Low- and Middle-Income Countries: The World Federation of Neurosurgical Societies Experience  Voir?

Surgical practice highly depends on the availability of surgical equipment; this is particularly relevant to low- and middle-income countries (LMICs), where resources are limited. A key part of the efforts to improve surgical provision globally include providing affordable equipment to LMICs; however, the effectiveness and the impact of these initiatives have not yet been assessed. We aimed to evaluate the World Federation of Neurosurgical Societies neurosurgical equipment program in this context.

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Arachnoid Cyst–Associated Chronic Subdural Hematoma: Report of 14 Cases and a Systematic Literature Review  Voir?

Arachnoid cyst (AC)-associated chronic subdural hematoma (CSDH) differs significantly from its counterparts without AC in epidemiologic, demographic, and clinical characteristics, as well as in management and prognosis. This study was conducted to further examine the epidemiologic, demographic, and clinical characteristics; diagnosis; treatment; and prognosis of AC-associated CSDH.

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Recovery of Patients with Pure Diffuse Axonal Injury Who Remained in a Coma for 6 Hours or More  Voir?

Diffuse axonal injury (DAI) is a traumatic brain injury and one of the most common causes of unfavorable outcome and death. The aim of this study was to investigate the recovery of patients with pure DAI who remained in a coma for 6 hours or longer after brain injury.
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Moyamoya Disease Associated with Tuberculum Sellae Meningioma and Cavernous Sinus Hemangioma  Voir?

Primary moyamoya disease associated with skull base tumors has been reported only rarely in the literature. Surgical treatment can be complicated due to the compensatory collateral circulation through meningeal and leptomeningeal anastomosis. A standard frontotemporal craniotomy may interrupt critical transdural anastomoses.

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Microscopic Minimally Invasive Keyhole Technique for Surgical Resection of Spinal Dumbbell Tumors  Voir?

Multiple surgical modalities have been developedl and applied for surgical excision of spinal dumbbell tumors. The microscopic minimally invasive keyhole technique has not yet been well characterized for this purpose. We report our experience with 1-stage surgical resection of both intraforaminal and extraforaminal/paraspinal components of spinal dumbbell tumors using the microsurgical keyhole technique.

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Effectiveness of the 3D Monitor System for Medical Education During Neurosurgical Operation  Voir?

Three-dimensional (3D) graphics are used in the medical field, especially during surgery. Although 3D monitoring is useful for medical education, its effectiveness needs to be objectively evaluated. The aim of this study was to investigate the efficacy of 3D monitoring in the surgical education of medical students.

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Comparison of Recanalization and In-Stent Stenosis Between the Low-Profile Visualized Intraluminal Support Stent and Enterprise Stent-Assisted Coiling for 254 Intracranial Aneurysms  Voir?

To compare the rates of recanalization and in-stent stenosis between the Enterprise (EP) and low-profile visualized intraluminal support (LVIS) stent deployments for intracranial aneurysms (IAs), and the factors associated therein.
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Clinical Features, Treatment, and Long-term Outcomes of Central Neurocytoma: A 20-Year Experience at a Single Center  Voir?

Central neurocytoma (CN) is a rare central nervous system tumor the optimal management strategy of which remains controversial because of their rarity. Detailed information on CN is necessary to establish optimal management strategies. The purpose of this study was to show the clinical features, treatments, and long-term clinical outcomes of CN.

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Early Transient Mild Hypothermia Attenuates Neurologic Deficits and Brain Damage After Experimental Subarachnoid Hemorrhage in Rats  Voir?

Metabolic exhaustion in ischemic tissue is the basis for a detrimental cascade of cell damage. In the acute stage of subarachnoid hemorrhage (SAH), a sequence of global and focal ischemia occurs, threatening brain tissue to undergo ischemic damage. This study was conducted to investigate whether early therapy with moderate hypothermia can offer neuroprotection after experimental SAH.

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Minimally Invasive Excision of Thoracic Arachnoid Web  Voir?

Arachnoid webs are rare intradural lesions that can cause direct spinal cord compression or alteration of the cerebrospinal fluid flow with syringomyelia. Surgery has been historically performed through wide-open laminectomies. The aim of this study is to prove the feasibility of minimally invasive techniques for the excision of arachnoid webs.

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Stenosis Before Thrombosis: Intracranial Hypertension from Jugular Foramen Stenosis Secondary to Renal Osteodystrophy  Voir?

Venous outflow obstructions are rare anatomic findings that can appear with symptoms of elevated intracranial pressure, including headache and vision loss, and can be mistaken for more common diagnoses, such as idiopathic intracranial hypertension (IIH) or cerebral venous sinus thrombosis (CVST). Although venous outflow obstructions have been reported in rare bone dysplasias and congenital abnormalities, to date they have not been reported in renal osteodystrophy (ROD), a relatively common disorder seen in patients with chronic kidney disease.

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Diagnosis and Outcomes of 341 Patients with Cushing's Disease Following Transsphenoid Surgery: A Single-Center Experience  Voir?

Transsphenoid surgery (TSS) is a standard treatment modality for Cushing's disease (CD). However, postoperative remission and recurrence rates vary among studies. Here we analyze the diagnosis and outcomes of 341 patients with a preoperative diagnosis of CD undergoing TSS in a single center over a 3-year period.

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Prognostication of Survival Outcomes in Patients Diagnosed with Glioblastoma  Voir?

Glioblastoma multiforme (GBM) is an aggressive primary brain tumor with dismal survival. This study aims to examine the prognostic value of primary tumor sites and race on survival outcomes.
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Histopathologic Features in Relation to Pretreatment Tumor Growth in Patients with Glioblastoma  Voir?

Rapid growth is a well-known property of glioblastoma (GBM); however, growth rates vary among patients. Mechanisms behind such variation have not been widely studied in human patients. We sought to investigate relationships between histopathologic features and tumor growth estimated from pretreatment magnetic resonance imaging scans.

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Intraoperative Magnetic-Resonance Tomography and Neuronavigation During Resection of Focal Cortical Dysplasia Type II in Adult Epilepsy Surgery Offers Better Seizure Outcomes  Voir?

Focal cortical dysplasia (FCD) is one important cause of drug-resistant epilepsy potentially curable by epilepsy surgery. We investigated the options of using neuronavigation and intraoperative magnetic-resonance tomographical imaging (MRI) to avoid residual epileptogenic tissue during resection of patients with FCD II to improve seizure outcome.

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Spinal Metastasis of Unknown Primary Accompanied by Neurologic Deficit or Vertebral Instability  Voir?

Spinal bone metastases are common. They are mostly localized to the lumbar, thoracic, and cervical spine. The most common primaries to result in spinal metastases include lung, breast, and prostate carcinomas in adults as opposed to leukemia, Ewing sarcoma, rhabdomyosarcoma, and neuroblastoma in children. In patients diagnosed with cancer, bone metastases are found in 40% and spinal metastases in 10%. In this study, we reviewed 25 patients diagnosed with a spinal metastasis of unknown primary who presented with low back pain or acute-onset neurologic deficits and underwent operative treatment.

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Effects of Different Therapeutic Approaches on Diagnosis of Glioblastoma and Detection of Its Recurrence  Voir?

Glioblastoma is a malignant tumor with a poor survival rate. The radiologic appearance of glioblastoma multiforme (GBM) is related to its biologic characteristics. GBM is a rapidly growing tumor and has a high rate of cellular turnover. The tumor overcomes its metabolic need by neovascularization. Neovascularization cannot withstand the rapid tumor growth, and thus the tumor develops foci of necrosis, which may coalesce into a large central necrosis. Different theories explain tumor necrosis.1 The pathologic vessels lack an adequate blood-brain barrier and are thus associated with a degree of capillary leak.

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Revision Rate of Misplaced Pedicle Screws of the Thoracolumbar Spine–Comparison of Three-Dimensional Fluoroscopy Navigation with Freehand Placement: A Systematic Analysis and Review of the Literature  Voir?

Recent studies have shown higher accuracy rates of image-guided pedicle screw placement compared to freehand (FH) placement. However, data focusing on the impact of spinal navigation on the rate of revision surgeries caused by misplaced pedicle screws (PS) are scarce.
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Clinical Accuracy of Customized Stereotactic Fixtures for Stereoelectroencephalography  Voir?

Stereoelectroencephalograpy (SEEG) is a diagnostic method involving 3-dimensional exploration of brain structures using depth electrodes for locating epileptogenic foci in patients with drug-resistant epilepsy. A variety of frame-based, frameless, and robotic stereotactic systems have been designed for the accurate placement of depth electrodes.

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Schwannomas of the Frontal Sinus: Cases and Review of the Literature  Voir?

Although schwannomas are commonly found in the head and neck region, sinonasal tract involvement is extremely rare, estimated as <4%. The presence of these lesions in the frontal sinus is even less common.
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The Availability of a Tin-Alloyed Omnidirectional Retractor-Supporting Ring for Ventriculoperitoneal Shunt Laparotomy  Voir?

We report the availability of a newly developed, malleable, tin-alloyed omnidirectional retractor-supporting (OD) ring for steady and safe ventriculoperitoneal (VP) shunt laparotomy.
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Top 100 Most-Cited Articles on Spontaneous Intracerebral Hemorrhage: A Bibliometric Analysis  Voir?

A bibliometric uses the citation count of an article to determine its impact on the clinical world. There is a paucity of literature concerning top article citations on spontaneous intracerebral hemorrhage (ICH). The main objective of this investigation was to bridge this gap and to provide understanding of the trends on the most influential articles written on this subject.

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Minimally Invasive Separation Surgery with Intraoperative Stereotactic Guidance: A Feasibility Study  Voir?

The treatment of spinal metastasis consists of algorithms combining surgical and radiation modalities. Recently the concept of separation surgery followed by stereotactic radiosurgery was shown to be a safe and effective treatment to achieve local tumor control.
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Falxuplication, a Novel Method for Wrap-Clipping a Fusiform Aneurysm: Technical Note  Voir?

Various techniques have been used for wrap-clipping a ruptured, fusiform intracranial aneurysm; however, there is no available literature on use of the falx cerebri for wrap-clipping. We present a review of the literature, with an illustrative case, of a ruptured fusiform pericallosal artery aneurysm firmly attached to the lower edge of the falx cerebri and not amenable to endovascular intervention.

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Minipterional and Supraorbital Keyhole Craniotomies for Ruptured Anterior Circulation Aneurysms: Experience at Single Center  Voir?

Keyhole craniotomy is a type of pterional craniotomy that involves a minimally invasive approach for the treatment of cerebral aneurysms. Currently, the minipterional keyhole craniotomy and supraorbital keyhole craniotomy procedures are frequently performed.
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Intraoperative Visualization of a Spinal Arachnoid Cyst Using Pyoktanin Blue  Voir?

Spinal arachnoid cysts (SACs) are filled with cerebrospinal fluid, and they include the arachnoid membrane, making it difficult to distinguish the walls of the cyst from the arachnoid membrane and excise the cyst as a lump. Here we report a technique for the intraoperative visualization of SACs, involving the use of pyoktanin blue.

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Accuracy of Pedicle Screw Insertion Among 3 Image-Guided Navigation Systems: Systematic Review and Meta-Analysis  Voir?

Many retrospective studies of pedicle screw placement have revealed that intraoperative navigation systems provide higher accuracy rates and safety than do free-hand techniques. The accuracy of various image-guided navigation systems has been studied; however, differences have not been well defined due to the lack of adequate evidence-based comparative studies.

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Morbidity and Mortality of Meningioma Resection Increases in Octogenarians  Voir?

The incidence of meningioma has increased drastically recently, particularly in older adults. Surgical intervention has the potential to reduce neurologic symptoms and achieve favorable, long-term outcomes. There is considerable variability in the literature examining the relationship between age and outcomes after meningioma surgery. The objective of this study was to identify the relationship between age and postoperative complications after craniotomy for resection of meningioma.

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The Occipital Artery as an Alternative Donor for Low-Flow Bypass to Anterior Circulation After Internal Carotid Artery Occlusion Failure prior to Exenteration for an Atypical Cavernous Sinus Meningioma  Voir?

In skull base tumors involving the cavernous sinus, indications for aggressive resection are sparse and must be carefully examined because of their invasiveness. With careful evaluation, techniques including internal carotid artery sacrifice with or without extracranial-intracranial bypass may still be an option in some cases. Moreover, previous surgery with the sacrifice of potential donor vessels requires adjusting the revascularization strategy. We describe an occipital artery–middle cerebral artery bypass before skull base tumor resection.

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Combined Minimally Invasive Supraciliary and Transfacial Approach for Large Tumors with Skull Base and Sinonasal Involvement  Voir?

Tumors invading both the anterior skull base and the sinonasal area have traditionally been accessed via largely invasive open craniofacial approaches. Minimally invasive extended endoscopic endonasal approaches have recently become increasingly available but have anatomical limitations and require incremental experience and thus high patient volume. Our objective was to assess the applicability of a novel combination of the minimally invasive supraciliary incision and the limited maxillofacial osteotomy as a combined surgical approach for large tumors invading both the anterior skull base and the sinonasal area.

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A Systematic Review of Radiosurgery Versus Surgery for Neurofibromatosis Type 2 Vestibular Schwannomas  Voir?

Neurofibromatosis type 2 (NF2) is an autosomal dominant disease characterized by bilateral vestibular schwannomas (VSs). NF2-associated VSs (NF2-VSs) are routinely treated with microsurgery; however, stereotactic radiosurgery (SRS) has emerged as an effective alternative in recent decades. To elucidate the role of SRS in NF2-VSs, a systematic review of the literature was conducted to compare outcomes of SRS versus surgery.

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A New Volumetric Radiologic Method to Assess Indirect Decompression After Extreme Lateral Interbody Fusion Using High-Resolution Intraoperative Computed Tomography  Voir?

Two-dimensional radiographic methods have been proposed to evaluate the radiographic outcome after indirect decompression through extreme lateral interbody fusion (XLIF). However, the assessment of neural decompression in a single plane may underestimate the effect of indirect decompression on central canal and foraminal volumes. The present study aimed to assess the reliability and consistency of a novel 3-dimensional radiographic method that assesses neural decompression by volumetric analysis using a new generation of intraoperative fan-beam computed tomography scanner in patients undergoing XLIF.

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Micro-Multileaf Collimator LINAC Radiosurgery for Vestibular Schwannomas  Voir?

This study evaluates the efficacy of linear accelerator (LINAC) radiosurgery using micro multi-leaf collimator technique (μMLC) in the treatment of a consecutive series of patients with vestibular schwannomas.
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Pilocytic Astrocytoma of Fornix Mimicking a Colloid Cyst: Report of 2 Cases and Review of the Literature  Voir?

Colloid cyst is a gelatin-containing cyst in the brain almost always found in the third ventricle. The specific shape and location of these cysts, a round well-delineated mass in the rostral part of the third ventricle adjacent to the foramen of Monro, on imaging are the main findings for diagnosis. Several masses of the third ventricle masquerading colloid cysts on images have been reported. Based on different surgical approaches, preoperative misdiagnosis of colloid cyst may have great impact on prognosis.

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WITHDRAWN: The modified impact factor; a letter to the editor  Voir?

This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause.The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy.
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WITHDRAWN: Outcomes After Anterior Lumbar Interbody Fusion Versus Transforaminal Lumbar Interbody Fusion for the Treatment of Symptomatic L5–S1 Spondylolisthesis: A Prospective, Multi-Institutional Comparative Effectiveness Study  Voir?

Available online 25 September 2015
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WITHDRAWN: Refining the Role for Evacuation of Spontaneous Intracerebral Hematomas: Results of STICH II  Voir?

The Publisher regrets that this article is an accidental duplication of an article that has already been published, DOI of original article: http://dx.doi.org/10.1016/j.wneu.2014.08.046. The duplicate article has therefore been withdrawn.The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy.

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Upcoming Events  Voir?

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Editor's Choices  Voir?

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Subscription Information  Voir?

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Editorial Board  Voir?

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Contents  Voir?

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In Reply to the Letter to the Editor “Validation of Predictive Scoring System for Ventriculoperitoneal Shunt Insertion After Aneurysmal Subarachnoid Hemorrhage: Statistical and Methodologic Issues”  Voir?

We read with great interest Safiri and Ashrafi-Asgarabad's evaluation of our manuscript, in which we externally validated the recently proposed Post-Subarachnoid Shunt Scoring (PS3) system. The PS3 system stratifies patients presenting with aneurysmal subarachnoid hemorrhage (aSAH) based on their relative risk of requiring ventriculoperitoneal (VP) shunt insertion. The authors purport that use of the bootstrapping method can circumvent the need for external validation of the scoring system, by using data from the original development cohort.

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Multifaceted Adjunct for Prevention of Cerebrospinal Fluid Leak Following External Ventricular Drain Placement To Minimize Incidence of Infection  Voir?

We read with great interest the article “Cerebrospinal Fluid Leak at Percutaneous Exit of Ventricular Catheter as a Crucial Risk Factor for External Ventricular Drainage−Related Infection in Adult Neurosurgical Patients” by Park et al,1 published in your esteemed journal. The authors prospectively analyzed incidence and various risk factors for development of cerebrospinal fluid (CSF) infection following placement of an external ventricular drain [EVD] in their study involving 52 patients suffering with acute hydrocephalus.

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In Reply to the Letter to the Editor Regarding “The Prognostic Impact of Ventricular Opening in Glioblastoma Surgery: A Retrospective Single Center Analysis”  Voir?

Herewith, we would like to answer the comments by Wen et al on our recent study “The Prognostic Impact of Ventricular Opening in Glioblastoma Surgery: A Retrospective Single-Center Analysis.” We appreciate the thorough examination of our statistical methods used in our study, especially since we also regard proper statistical analyses in retrospective nonrandomized studies as paramount. The comments show the high interest of the addressed medical topic but also the request for high-quality statistical standards.

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Letter to the Editor Regarding “The Prognostic Impact of Ventricular Opening in Glioblastoma Surgery: A Retrospective Single Center Analysis”  Voir?

We read the article “Prognostic Impact of Ventricular Opening in Glioblastoma Surgery: Retrospective Single-Center Analysis” by Behling et al,1 which was published recently in WORLD NEUROSURGERY. The authors investigated the impact of the ventricular opening on overall survival (OS), hydrocephalus development, and postoperative morbidity in patients with glioblastoma. This study makes a valuable contribution to the area. However, some methodologic issues should be taken into account.

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In Reply to the Letter to the Editor “Body Mass Index >35 as Independent Predictor of Mortality in Severe Traumatic Brain Injury: Statistical and Methodologic Issues”  Voir?

We received a letter to the editor from Ayubi et al regarding statistical and methodologic issues we used in our manuscript “Body Mass Index >35 as an Independent Predictor of Mortality in Severe Traumatic Brain Injury.”1
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In Reply to the Letter to the Editor Regarding “Anatomic Dissection of Arachnoid Membranes Encircling the Pituitary Stalk on Fresh Non-Formalin-Fixed Specimens: Anatomoradiologic Correlations and Clinical Applications in Craniopharyngioma Surgery”  Voir?

It is a pleasure to ascertain that our study1 is the subject of academic discussion even before its definitive publication. At the same time we have always encouraged constructive comments to our works. However, we feel that a complete response to the erratic commentary sent by Peter Kurucz and Oliver Ganslandt is necessary.

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Validation of Predictive Scoring System for Ventriculoperitoneal Shunt Insertion After Aneurysmal Subarachnoid Hemorrhage: Statistical and Methodologic Issues  Voir?

We have enthusiastically read the article by Gupta et al1 that was published in WORLD NEUROSURGERY in 2017. The authors aimed to validate this Postsubarachnoid Shunt Scoring (PS3) system using data from a separate cohort of patients who presented with aneurysmal subarachnoid hemorrhage to a major academic center in the United States. They concluded that the previously proposed PS3 system was valid and more accurately predicts shunt-dependent chronic hydrocephalus in patients with aneurysmal subarachnoid hemorrhage.

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In Reply to the Letter to the Editor Regarding “Endoscopic Endonasal Surgery for Pituitary Apoplexy: Evidence On a 75 Case-Series From a Tertiary Care Center”  Voir?

We read with great interest the letter by Dr. Turgut commenting on our recent paper “Endoscopic Endonasal Surgery for Pituitary Apoplexy: Evidence on a 75-Case Series from a Tertiary Care Center.”1 Despite several studies published in the field, the management of pituitary apoplexy remains controversial in daily routine practice.2,3 Therefore we thank our colleague for his letter because we believe any scientific discussion can be useful to enlighten still undefined aspects and to orientate patient clinical work-up.

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In Reply to the Letter to the Editor Regarding “Neurologic Outcome After Decompressive Craniectomy: Predictors of Outcome in Different Pathologic Conditions”  Voir?

We thank Ogando-Rivas and Motolinia Alejandre for their interest and appreciation of our recent publication, in which we reported the long-term neurologic outcome of 204 patients undergoing decompressive craniectomy (DC) for a variety of pathologies.1 We noted remarkably different favorable outcome rates when patients were assorted for pathology and predictors of outcome, ranging from 91% for patients suffering from cerebral venous thrombosis undergoing uncomplicated DC to 0% for aneurysmal subarachnoid hemorrhage patients undergoing DC for secondary infarction, or intracerebral hematoma patients with unilateral or bilateral abnormal pupillary light reflexes on admission.

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Body Mass Index >35 as Independent Predictor of Mortality in Severe Traumatic Brain Injury: Statistical and Methodologic Issues  Voir?

We read with great interest the study by Czorlich et al.1 After reading this article carefully and critically, we have some statistical and methodologic concerns to point out as follows:
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Letter to the Editor Regarding “Anatomic Dissection of Arachnoid Membranes Encircling the Pituitary Stalk on Fresh Non−Formalin-Fixed Specimens: Anatomoradiologic Correlations and Clinical Applications in Craniopharyngioma Surgery”  Voir?

We have read with great interest the article by Ciappetta et al.1 In their study 10 fresh human cadaveric heads were dissected, complete with the analysis of 3-Tesla magnetic resonance imaging using 3-dimensional (3D) constructive interference steady state pulse magnetic resonance sequences in 15 healthy volunteers. At the end of the paper a new classification system was suggested for craniopharyngiomas on the basis of the relationships to the arachnoid membranes described in the study. The authors stated that a detailed description of the 3D anatomic conformation of the arachnoid sheets encircling this neural structure has not yet been given.

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Letter to the Editor Regarding “Neurologic Outcome After Decompressive Craniectomy: Predictors of Outcome in Different Pathologic Conditions”  Voir?

Goedemans et al1 published an outstanding paper about the neurologic outcome after decompressive craniotomies. The statistical analysis and results are clearly explained and useful. As we know, decompressive craniectomies have been subject of many discussions due to 2 main concerns: when to perform surgery and how would be the quality of life of the patients after surgery. The first concern has been trying to standardize through several studies, but the second one has been more challenging. Nonetheless, it is the reason why we try to know the precise moment to perform the surgery.

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Letter to the Editor Regarding “Endoscopic Endonasal Surgery for Pituitary Apoplexy: Evidence On a 75 Case-Series From a Tertiary Care Center”  Voir?

I read the article entitled “Endoscopic Endonasal Surgery for Pituitary Apoplexy: Evidence from 75 Case Series from Tertiary Care Center” by Zoli et al1 with great interest. The authors presented results of retrospective analysis of 75 cases with pituitary apoplexy (PA) in this study, and they concluded that endoscopic endonasal surgery is a valid, effective, and safe technique in the management of PA. Today it is well known that PA is a rare and life-threatening complication occurring in 0.6%–10.5% of all cases of pituitary adenomas, but the optimal management of this problem still remains controversial, as noted clearly by the authors.

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Letter to the Editor Regarding “Risk Factors to Predict Neurologic Complications After Endovascular Treatment of Unruptured Paraclinoid Aneurysms”  Voir?

We have read with great interest the article by Ji et al1 entitled “Risk Factors to Predict Neurologic Complications After Endovascular Treatment of Unruptured Paraclinoid Aneurysms” recently published in WORLD NEUROSURGERY. The authors retrospectively reviewed a series of 443 patients with unruptured paraclinoid aneurysms who received endovascular treatment. Patients were divided into 2 groups: the first group (n = 420) had no neurologic complications, and the second group (n = 23) had neurologic complications.

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Retrospective Analysis and Comment on the Time Interval Between Surgery and Onset of Guillain-Barré Syndrome  Voir?

We read with interest the article by Boghani et al.1 reporting 2 patients with Guillain-Barré syndrome (GBS) after spine surgery within 3 hours. Surgery has been considered as a potential risk factor for developing GBS; however, it cannot trigger GBS within 3 hours postoperatively, according to our experience.

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Too Much of a Good Thing?  Voir?

Regular readers of WORLD NEUROSURGERY have no doubt noticed the explosive growth in the journal's size. This is especially true of readers of the print edition, who can truly feel the weight of this growth. The August 2017 issue ran to 1052 pages. Compare this with August 2016 (658 pages) and August 2013 (224 pages), and the contrast is striking. Both the editor and publisher are gratified by this marker of the journal's success. Submissions to the journal keep going up, in a seemingly gravity-defying process.

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Dernière mise à jour : 13/12/2017 : 18:21


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