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Journal of Neurosurgery

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https://www.readbyqxmd.com/read/28338441/radiosurgery-in-the-management-of-brain-metastasis-a-retrospective-single-center-study-comparing-gamma-knife-and-linac-treatment
#1
Constantin Tuleasca, Laura Negretti, Mohamed Faouzi, Vera Magaddino, Thierry Gevaert, Erik von Elm, Marc Levivier
OBJECTIVE The authors present a retrospective analysis of a single-center experience with treatment of brain metastases using Gamma Knife (GK) and linear accelerator (LINAC)-based radiosurgery and compare the results. METHODS From July 2010 to July 2012, 63 patients with brain metastases were treated with radiosurgery. Among them, 28 (with 83 lesions) were treated with a GK unit and 35 (with 47 lesions) with a LINAC. The primary outcome was local progression-free survival (LPFS), evaluated on a per-lesion basis...
March 24, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28338440/a-study-of-cognitive-function-in-treatment-refractory-obsessive-compulsive-disorder-treated-with-capsulotomy
#2
Feilong Gong, Peng Li, Bin Li, Shizhen Zhang, Xinjie Zhang, Sen Yang, Hongbin Liu, Wei Wang
OBJECTIVE Anterior capsulotomy (AC) is sometimes used as a last resort for treatment-refractory obsessive-compulsive disorder (OCD). Previous studies assessing neuropsychological outcomes in patients with OCD have identified several forms of cognitive dysfunction that are associated with the disease, but few have focused on changes in cognitive function in OCD patients who have undergone surgery. In the present study, the authors investigated the effects of AC on the cognitive function of patients with treatment-refractory OCD...
March 24, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28338439/stereotactic-radiosurgery-in-the-treatment-of-parasellar-meningiomas-long-term-volumetric-evaluation
#3
Or Cohen-Inbar, Athreya Tata, Shayan Moosa, Cheng-Chia Lee, Jason P Sheehan
OBJECTIVE Parasellar meningiomas tend to invade the suprasellar, cavernous sinus, and petroclival regions, encroaching on adjacent neurovascular structures. As such, they prove difficult to safely and completely resect. Stereotactic radiosurgery (SRS) has played a central role in the treatment of parasellar meningiomas. Evaluation of tumor control rates at this location using simplified single-dimension measurements may prove misleading. The authors report the influence of SRS treatment parameters and the timing and volumetric changes of benign WHO Grade I parasellar meningiomas after SRS on long-term outcome...
March 24, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28338438/learning-brain-aneurysm-microsurgical-skills-in-a-human-placenta-model-predictive-validity
#4
Marcelo Magaldi Ribeiro de Oliveira, Carlos Eduardo Ferrarez, Taise Mosso Ramos, Jose Augusto Malheiros, Arthur Nicolato, Carla Jorge Machado, Mauro Tostes Ferreira, Fellype Borges de Oliveira, Cecília Félix Penido Mendes de Sousa, Pollyana Helena Vieira Costa, Sebastiao Gusmao, Giuseppe Lanzino, Rolando Del Maestro
OBJECTIVE Surgery for brain aneurysms is technically demanding. In recent years, the process to learn the technical skills necessary for these challenging procedures has been affected by a decrease in the number of surgical cases available and progressive restrictions on resident training hours. To overcome these limitations, surgical simulators such as cadaver heads and human placenta models have been developed. However, the effectiveness of these models in improving technical skills is unknown. This study assessed concurrent and predictive validity of brain aneurysm surgery simulation in a human placenta model compared with a "live" human brain cadaveric model...
March 24, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28338437/contralateral-peripheral-neurotization-for-a-hemiplegic-hindlimb-after-central-neurological-injury
#5
Mou-Xiong Zheng, Xu-Yun Hua, Su Jiang, Yan-Qun Qiu, Yun-Dong Shen, Wen-Dong Xu
OBJECTIVE Contralateral peripheral neurotization surgery has been successfully applied to rescue motor function of the hemiplegic upper extremity in patients with central neurological injury (CNI). It may contribute to strengthened neural pathways between the contralesional cortex and paretic limbs. However, the effect of this surgery in the lower extremities remains unknown. In the present study the authors explored the effectiveness and safety of contralateral peripheral neurotization in treating a hemiplegic lower extremity following CNI in adult rats...
March 24, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28338436/letter-to-the-editor-threshold-criterion-in-transcranial-motor-evoked-potentials
#6
Jose L Sanmillan, Gerard Plans, Andreu Gabarrós, Isabel Fernández-Conejero
No abstract text is available yet for this article.
March 24, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28338435/erratum-hearing-subclassification-may-predict-long-term-auditory-outcomes-after-radiosurgery-for-vestibular-schwannoma-patients-with-good-hearing
#7
Gillian Shasby
No abstract text is available yet for this article.
March 24, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28338433/letter-to-the-editor-ultrasound-in-peripheral-nerve-injuries-the-challenge
#8
Liverana Lauretti, Quintino Giorgio D'Alessandris, Eduardo Fernandez
No abstract text is available yet for this article.
March 24, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28338432/dual-labeling-with-5-aminolevulinic-acid-and-fluorescein-for-fluorescence-guided-resection-of-high-grade-gliomas-technical-note
#9
Eric Suero Molina, Johannes Wölfer, Christian Ewelt, André Ehrhardt, Benjamin Brokinkel, Walter Stummer
OBJECTIVE Fluorescence guidance with 5-aminolevulinic acid (5-ALA) helps improve resections of malignant gliomas. However, one limitation is the low intensity of blue light for background illumination. Fluorescein has recently been reintroduced into neurosurgery, and novel microscope systems are available for visualizing this fluorochrome, which highlights all perfused tissues but has limited selectivity for tumor detection. Here, the authors investigate a combination of both fluorochromes: 5-ALA for distinguishing tumor and fluorescein for providing tissue fluorescence of adjacent brain tissue...
March 24, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28338431/letter-to-the-editor-is-gender-a-factor-in-long-term-outcomes-after-radiosurgery-for-vestibular-schwannoma
#10
Lishi Wang, Mingji Ren, Amei Chen, Weikuan Gu
No abstract text is available yet for this article.
March 24, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28338434/coexistence-of-obstructive-sleep-apnea-worsens-the-overall-outcome-of-intracranial-aneurysm-a-pioneer-study
#11
Shyamal C Bir, Anil Nanda, Hugo Cuellar, Hai Sun, Bharat Guthikonda, Cesar Liendo, Alireza Minagar, Oleg Y Chernyshev
OBJECTIVE Obstructive sleep apnea (OSA) is associated with the progression of abdominal and thoracic aortic aneurysms. However, the role of OSA in the overall outcome of intracranial aneurysms (IAs) has not yet been established. Authors of this report investigated the role of OSA in the overall outcome of IAs. METHODS Radiological and clinical data on patients (from 2010 through 2015) with confirmed IA were retrospectively reviewed. Significant differences between the OSA and non-OSA groups were determined using a chi-square test...
March 21, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28306420/ventriculo-ureteral-shunt-insertion-using-percutaneous-nephrostomy-a-novel-minimally-invasive-option-in-a-patient-with-chronic-hydrocephalus-complicated-by-multiple-distal-ventriculoperitoneal-shunt-failures
#12
Ashok Pillai, Georgie Mathew, Sivasankaran Nachimuthu, Sanjeevan Vasudevan Kalavampara
The management of ventriculoperitoneal (VP) shunt failure is a common problem in neurosurgical practice. On occasion, extraperitoneal sites for CSF diversion are required when shunting to the peritoneal cavity has failed after multiple attempts. The authors report a novel minimally invasive procedure allowing cannulation of the ureter for the purpose of ventriculo-ureteral (VU) shunting. Sixteen years prior to presentation, this 46-year-old woman had contracted tuberculous meningitis and had chronic hydrocephalus, with multiple distal shunt failures in recent months...
March 17, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28306419/does-the-ranking-of-surgeons-in-a-publicly-available-online-platform-correlate-with-objective-outcomes
#13
Kimon Bekelis, Symeon Missios, Shannon Coy, Jeremiah N Johnson
OBJECTIVE The accuracy of public reporting in health care, especially from private vendors, remains an issue of debate. The authors investigated the association of the publicly reported physician complication rates in an online platform with real-world adverse outcomes of the same physicians for patients undergoing posterior lumbar fusion. METHODS The authors performed a cohort study involving physicians performing posterior lumbar fusions between 2009 and 2013 who were registered in the Statewide Planning and Research Cooperative System database...
March 17, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28306418/an-mrs-and-pet-guided-biopsy-tool-for-intraoperative-neuronavigational-systems
#14
Matthew Grech-Sollars, Babar Vaqas, Gerard Thompson, Tara Barwick, Lesley Honeyfield, Kevin O'Neill, Adam D Waldman
OBJECTIVE Glioma heterogeneity and the limitations of conventional structural MRI for identifying aggressive tumor components can limit the reliability of stereotactic biopsy and, hence, tumor characterization, which is a hurdle for developing and selecting effective treatment strategies. In vivo MR spectroscopy (MRS) and PET enable noninvasive imaging of cellular metabolism relevant to proliferation and can detect regions of more highly active tumor. Here, the authors integrated presurgical PET and MRS with intraoperative neuronavigation to guide surgical biopsy and tumor sampling of brain gliomas with the aim of improving intraoperative tumor-tissue characterization and imaging biomarker validation...
March 17, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28306417/the-management-and-outcome-for-patients-with-chronic-subdural-hematoma-a-prospective-multicenter-observational-cohort-study-in-the-united-kingdom
#15
Paul M Brennan, Angelos G Kolias, Alexis J Joannides, Jonathan Shapey, Hani J Marcus, Barbara A Gregson, Patrick J Grover, Peter J Hutchinson, Ian C Coulter
OBJECTIVE Symptomatic chronic subdural hematoma (CSDH) will become an increasingly common presentation in neurosurgical practice as the population ages, but quality evidence is still lacking to guide the optimal management for these patients. The British Neurosurgical Trainee Research Collaborative (BNTRC) was established by neurosurgical trainees in 2012 to improve research by combining the efforts of trainees in each of the United Kingdom (UK) and Ireland's neurosurgical units (NSUs). The authors present the first study by the BNTRC that describes current management and outcomes for patients with CSDH throughout the UK and Ireland...
March 17, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28304190/the-second-generation-eclips-endovascular-clip-system-initial-experience
#16
Albert H Chiu, Joost De Vries, Cian J O'Kelly, Howard Riina, Ian McDougall, Jonathan Tippett, Martina Wan, Airton Leonardo de Oliveira Manoel, Thomas R Marotta
OBJECTIVE Treatment of wide-necked intracranial aneurysms is associated with higher recanalization and complication rates; however, the most commonly used methods are not specifically designed to work in bifurcation lesions. To address these issues, the authors describe the evolution in the design and use of the eCLIPs (Endovascular Clip System) device, a novel hybrid stent-like assist device with flow diverter properties that was first described in 2008. METHODS A registry was established covering 13 international centers at which patients were treated with the second-generation eCLIPs device...
March 17, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28304189/physiological-remodeling-of-bifurcation-aneurysms-preclinical-results-of-the-eclips-device
#17
Thomas R Marotta, Howard A Riina, Ian McDougall, Donald R Ricci, Monika Killer-Oberpfalzer
OBJECTIVE Intracranial bifurcation aneurysms are complex lesions for which current therapy, including simple coiling, balloon- or stent-assisted coiling, coil retention, or intrasaccular devices, is inadequate. Thromboembolic complications due to a large burden of intraluminal metal, impedance of access to side branches, and a high recurrence rate, due largely to the unmitigated high-pressure flow into the aneurysm (water hammer effect), are among the limitations imposed by current therapy. The authors describe herein a novel device, eCLIPs, and its use in a preclinical laboratory study that suggests the device's design and functional features may overcome many of these limitations...
March 17, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28304188/the-effect-of-unilateral-thalamic-deep-brain-stimulation-on-the-vocal-dysfunction-in-a-patient-with-spasmodic-dysphonia-interrogating-cerebellar-and-pallidal-neural-circuits
#18
Anujan Poologaindran, Zurab Ivanishvili, Murray D Morrison, Linda A Rammage, Mini K Sandhu, Nancy E Polyhronopoulos, Christopher R Honey
Spasmodic dysphonia (SD) is a neurological disorder of the voice where a patient's ability to speak is compromised due to involuntary contractions of the intrinsic laryngeal muscles. Since the 1980s, SD has been treated with botulinum toxin A (BTX) injections into the throat. This therapy is limited by the delayed-onset of benefits, wearing-off effects, and repeated injections required every 3 months. In a patient with essential tremor (ET) and coincident SD, the authors set out to quantify the effects of thalamic deep brain stimulation (DBS) on vocal function while investigating the underlying motor thalamic circuitry...
March 17, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28304187/letter-to-the-editor-keyhole-and-standard-subtemporal-approaches
#19
Melissa M Stamates, Ricky H Wong
No abstract text is available yet for this article.
March 17, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28304181/computed-tomography-angiography-as-a-confirmatory-test-for-the-diagnosis-of-brain-death
#20
Mark P Garrett, Richard W Williamson, Michael A Bohl, C Roger Bird, Nicholas Theodore
OBJECTIVE For a diagnosis of brain death (BD), ancillary testing is performed if patient factors prohibit a complete clinical examination and apnea test. The American Academy of Neurology (AAN) guidelines identify cerebral angiography (CA), cerebral scintigraphy, electroencephalography, and transcranial Doppler ultrasonography as accepted ancillary tests. CA is widely considered the gold standard of these, as it provides the most reliable assessment of intracranial blood flow. CT angiography (CTA) is a noninvasive and widely available study that is also capable of identifying absent or severely diminished intracranial blood flow, but it is not included among the AAN's accepted ancillary tests because of insufficient evidence demonstrating its reliability...
March 17, 2017: Journal of Neurosurgery
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