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Journal of Neurosurgery

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https://www.readbyqxmd.com/read/27911239/microvascular-decompression-of-the-cochleovestibular-nerve-for-treatment-of-tinnitus-and-vertigo-a-systematic-review-and-meta-analysis-of-individual-patient-data
#1
Minke J C van den Berge, J Marc C van Dijk, Iris A Posthumus, Nynke Smidt, Pim van Dijk, Rolien H Free
OBJECTIVE Microvascular decompression (MVD) is regarded as a valid treatment modality in neurovascular conflicts (NVCs) causing, for example, trigeminal neuralgia and hemifacial spasms. An NVC of the cochleovestibular nerve might cause tinnitus and/or vertigo; however, general acceptance of MVD for this indication is lacking. The aim of this study was to investigate the effectiveness, safety, and prognostic factors for success of MVD of the cochleovestibular nerve. METHODS A systematic review and meta-analysis of individual patient data (IPD) were conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses and Individual Patient Data (PRISMA-IPD) guidelines...
December 2, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27911238/managing-overlapping-surgery-an-analysis-of-1018-neurosurgical-and-spine-cases
#2
Jian Guan, Andrea A Brock, Michael Karsy, William T Couldwell, Meic H Schmidt, John R W Kestle, Randy L Jensen, Andrew T Dailey, Richard H Schmidt
OBJECTIVE Overlapping surgery-the performance of parts of 2 or more surgical procedures at the same time by a single lead surgeon-has recently come under intense scrutiny, although data on the effects of overlapping procedures on patient outcomes are lacking. The authors examined the impact of overlapping surgery on complication rates in neurosurgical patients. METHODS The authors conducted a retrospective review of consecutive nonemergent neurosurgical procedures performed during the period from May 12, 2014, to May 12, 2015, by any of 5 senior neurosurgeons at a single institution who were authorized to schedule overlapping cases...
December 2, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27911237/size-and-location-of-ruptured-intracranial-aneurysms-consecutive-series-of-1993-hospital-admitted-patients
#3
Miikka Korja, Riku Kivisaari, Behnam Rezai Jahromi, Hanna Lehto
OBJECTIVE Large consecutive series on the size and location of ruptured intracranial aneurysms (RIAs) are limited, and therefore it has been difficult to estimate population-wide effects of size-based treatment strategies of unruptured intracranial aneurysms. The authors' aim was to define the size and location of RIAs in patients diagnosed with subarachnoid hemorrhage due to aneurysm rupture in a high-volume academic center. METHODS Consecutive patients admitted to a large nonprofit academic hospital with saccular RIAs between 1995 and 2009 were identified, and the size, location, and multiplicity of RIAs were defined and reported by patient sex...
December 2, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27911236/patient-versus-physician-reported-facial-disability-in-vestibular-schwannoma-an-international-cross-sectional-study
#4
Øystein Vesterli Tveiten, Matthew L Carlson, Frederik Goplen, Erling Myrseth, Colin L W Driscoll, Rupavathana Mahesparan, Michael J Link, Morten Lund-Johansen
OBJECTIVE Patient-reported outcomes are increasingly used in studies of vestibular schwannoma (VS); however, few studies have examined self-evaluated facial nerve function and its relation to physician-reported outcomes. The primary objective of this study was to compare patient self-evaluations of facial disability with physician-evaluated facial nerve status and with self-evaluations of a healthy control group. The second objective was to provide insight into the controversial subject of the optimal initial management of small- and medium-sized VSs; consequently, the authors compared patient-reported facial nerve disability following treatment via observation (OBS), Gamma Knife surgery (GKS), or microsurgery (MS)...
December 2, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27911235/robustness-of-the-neurological-prognostic-score-in-brain-metastasis-patients-treated-with-gamma-knife-radiosurgery
#5
Toru Serizawa, Yoshinori Higuchi, Osamu Nagano, Shinji Matsuda, Kyoko Aoyagi, Junichi Ono, Naokatsu Saeki, Yasuo Iwadate, Tatsuo Hirai, Shinya Takemoto, Yuta Shibamoto
OBJECTIVE The neurological prognostic score (NPS) was recently proposed as a means for predicting neurological outcomes, such as the preservation of neurological function and the prevention of neurological death, in brain metastasis patients treated with Gamma Knife radiosurgery (GKRS). NPS consists of 2 groups: Group A patients were expected to have better neurological outcomes, and Group B patients were expected to have poorer outcomes. NPS robustness was tested in various situations. METHODS In total, 3040 patients with brain metastases that were treated with GKRS were analyzed...
December 2, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27911234/ventriculostomy-associated-hemorrhage-a-risk-assessment-by-radiographic-simulation
#6
Faith C Robertson, Muhammad M Abd-El-Barr, Srinivasan Mukundan, William B Gormley
OBJECTIVE Ventriculostomy entry sites are commonly selected by freehand estimation of Kocher's point or approximations from skull landmarks and a trajectory toward the ipsilateral frontal horn of the lateral ventricles. A recognized ventriculostomy complication is intracranial hemorrhage from cortical vessel damage; reported rates range from 1% to 41%. In this report, the authors assess hemorrhagic risk by simulating traditional ventriculostomy trajectories and using CT angiography (CTA) with venography (CTV) data to identify potential complications, specifically from cortical draining veins...
December 2, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27911233/elevated-preoperative-neutrophil-to-lymphocyte-ratio-as-a-predictor-of-worse-survival-after-resection-in-patients-with-brain-metastasis
#7
Koichi Mitsuya, Yoko Nakasu, Takeshi Kurakane, Nakamasa Hayashi, Hideyuki Harada, Kazuhiko Nozaki
OBJECTIVE The median postoperative survival duration of patients with brain metastases who undergo tumor resection is 12 months. Most of these patients die of systemic metastases or the progression of primary cancer but not brain metastases. The criteria for indicating resection are still controversial. Systemic assessment is restricted, especially in patients who need emergent management for their large-size or life-threatening brain metastases. The neutrophil-to-lymphocyte ratio (NLR) is reported to correlate with survival time or progression-free survival in patients with various cancers...
December 2, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27911232/intracranial-venous-sinus-thrombosis-as-unusual-presentation-of-bing-neel-syndrome-case-illustration
#8
Rosa Morabito, Giovanni Grasso, Valeria Barresi, Paolo La Spina, Giada Garufi, Elisabetta Alafaci, Francesco M Salpietro, Marcello Longo, Francesca Granata, Concetta Alafaci
No abstract text is available yet for this article.
December 2, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27911231/systematic-review-of-ventricular-peritoneal-shunt-and-percutaneous-endoscopic-gastrostomy-a-safe-combination
#9
Leendert H Oterdoom, D L Marinus Oterdoom, Johannes C F Ket, J Marc C van Dijk, Pieter Scholten
OBJECTIVE Various international and national gastrointestinal guidelines take different positions on whether ventriculoperitoneal shunt (VPS) insertion is a contraindication to percutaneous endoscopic gastrostomy (PEG). The objective of this meta-analysis was to try to answer the question of whether VPS insertion is a contraindication to PEG. METHODS A systematic review of the literature was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) criteria. Electronic databases PubMed and Embase were searched using variations of the terms "ventriculo-peritoneal shunt" and "percutaneous (endoscopic) gastrostomy...
December 2, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27885957/visual-pathway-impairment-by-pituitary-adenomas-quantitative-diagnostics-by-diffusion-tensor-imaging
#10
Ylva Lilja, Oscar Gustafsson, Maria Ljungberg, Göran Starck, Bertil Lindblom, Thomas Skoglund, Henrik Bergquist, Karl-Erik Jakobsson, Daniel Nilsson
OBJECTIVE Despite ample experience in surgical treatment of pituitary adenomas, little is known about objective indices that may reveal risk of visual impairment caused by tumor growth that leads to compression of the anterior visual pathways. This study aimed to explore diffusion tensor imaging (DTI) as a means for objective assessment of injury to the anterior visual pathways caused by pituitary adenomas. METHODS Twenty-three patients with pituitary adenomas, scheduled for transsphenoidal tumor resection, and 20 healthy control subjects were included in the study...
November 25, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27885956/solitary-tentorial-sarcoid-granuloma-associated-with-propionibacterium-acnes-infection-case-report
#11
Jiro Akimoto, Kenta Nagai, Daisuke Ogasawara, Yujiro Tanaka, Hitoshi Izawa, Michihiro Kohno, Keisuke Uchida, Yoshinobu Eishi
Sarcoidosis is a systemic granulomatous disease with unknown cause, which very rarely occurs exclusively in the central nervous system. The authors performed biopsy sampling of a mass that developed in the left tentorium cerebelli that appeared to be a malignant tumor. The mass was diagnosed as a sarcoid granuloma, which was confirmed with the onset of antibody reaction product against Propionibacterium acnes. Findings suggesting sarcoidosis to be an immune response to P. acnes infection have recently been reported, and they give insight for diagnosis and treatment of this disease...
November 25, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27885955/editorial-vestibular-schwannoma-radiosurgery-progression-or-pseudoprogression
#12
Jean Régis, Christine Delsanti, Pierre-Hugues Roche
No abstract text is available yet for this article.
November 25, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27885954/novel-biomarker-identification-using-metabolomic-profiling-to-differentiate-radiation-necrosis-and-recurrent-tumor-following-gamma-knife-radiosurgery
#13
Alex Y Lu, Jack L Turban, Eyiyemisi C Damisah, Jie Li, Ahmed K Alomari, Tore Eid, Alexander O Vortmeyer, Veronica L Chiang
OBJECTIVE Following an initial response of brain metastases to Gamma Knife radiosurgery, regrowth of the enhancing lesion as detected on MRI may represent either radiation necrosis (a treatment-related inflammatory change) or recurrent tumor. Differentiation of radiation necrosis from tumor is vital for management decision making but remains difficult by imaging alone. In this study, gas chromatography with time-of-flight mass spectrometry (GC-TOF) was used to identify differential metabolite profiles of the 2 tissue types obtained by surgical biopsy to find potential targets for noninvasive imaging...
November 25, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27885953/targeted-sequencing-of-smo-and-akt1-in-anterior-skull-base-meningiomas
#14
Matthew R Strickland, Corey M Gill, Naema Nayyar, Megan R D'Andrea, Christian Thiede, Tareq A Juratli, Gabriele Schackert, Darrell R Borger, Sandro Santagata, Matthew P Frosch, Daniel P Cahill, Priscilla K Brastianos, Fred G Barker
OBJECTIVE Meningiomas located in the skull base are surgically challenging. Recent genomic research has identified oncogenic SMO and AKT1 mutations in a small subset of meningiomas. METHODS The authors performed targeted sequencing in a large cohort of patients with anterior skull base meningiomas (n = 62) to better define the frequency of SMO and AKT1 mutations in these tumors. RESULTS The authors found SMO mutations in 7 of 62 (11%) and AKT1 mutations in 12 of 62 (19%) of their cohort. Of the 7 meningiomas with SMO mutations, 6 (86%) occurred in the olfactory groove...
November 25, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27885952/pretreatment-growth-rate-as-a-predictor-of-tumor-control-following-gamma-knife-radiosurgery-for-sporadic-vestibular-schwannoma
#15
Alexander P Marston, Jeffrey T Jacob, Matthew L Carlson, Bruce E Pollock, Colin L W Driscoll, Michael J Link
OBJECTIVE Over the last 30 years, stereotactic radiosurgery (SRS) has become an established noninvasive treatment alternative for small- to medium-sized vestibular schwannoma (VS). This study aims to further define long-term SRS tumor control in patients with documented pretreatment tumor growth for whom conservative observation failed. METHODS A prospective clinical database was queried, and patients with sporadic VS who elected initial observation and subsequently underwent SRS after documented tumor growth between 2004 and 2014 were identified...
November 25, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27885951/retraction-effect-of-atorvastatin-on-resolution-of-chronic-subdural-hematoma-a-prospective-observational-study
#16
Hua Liu
No abstract text is available yet for this article.
November 25, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27885950/randomized-controlled-trials-in-neurosurgery-an-observational-analysis-of-trial-discontinuation-and-publication-outcome
#17
Aimun A B Jamjoom, Angus B Gane, Andreas K Demetriades
OBJECTIVE This study aimed to determine the trial discontinuation and publication rate of randomized controlled trials (RCTs) in neurosurgery. METHODS Trials registered from 2000 to 2012 were identified on the website clinicaltrials.gov using a range of key words related to neurosurgery. Any trials that were actively recruiting or had unknown status were excluded. Included trials were assessed for whether they were discontinued early on the clinicaltrials.gov database; this included trials identified as withdrawn, suspended, or terminated in the database...
November 25, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27885949/letter-to-the-editor-whole-brain-ct-perfusion-and-subarachnoid-hemorrhage
#18
Chinmaya Dash, Raghav Singla
No abstract text is available yet for this article.
November 25, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27858576/letter-to-the-editor-short-term-%C3%AE%C2%B5-aminocaproic-acid-treatment-and-endovascular-coil-embolization
#19
René Post, Bert A Coert, W Peter Vandertop, Dagmar Verbaan, Menno R Germans
No abstract text is available yet for this article.
November 18, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27858575/chronic-electrocorticography-for-sensing-movement-intention-and-closed-loop-deep-brain-stimulation-with-wearable-sensors-in-an-essential-tremor-patient
#20
Jeffrey A Herron, Margaret C Thompson, Timothy Brown, Howard J Chizeck, Jeffrey G Ojemann, Andrew L Ko
Deep brain stimulation (DBS) has become a widespread and valuable treatment for patients with movement disorders such as essential tremor (ET). However, current DBS treatment constantly delivers stimulation in an open loop, which can be inefficient. Closing the loop with sensors to provide feedback may increase power efficiency and reduce side effects for patients. New implantable neuromodulation platforms, such as the Medtronic Activa PC+S DBS system, offer important data sources by providing chronic neural sensing capabilities and a means of investigating dynamic stimulation based on symptom measurements...
November 18, 2016: Journal of Neurosurgery
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