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https://www.readbyqxmd.com/read/29775152/semi-automated-application-for-estimating-subthalamic-nucleus-boundaries-and-optimal-target-selection-for-deep-brain-stimulation-implantation-surgery
#1
John A Thompson, Salam Oukal, Hagai Bergman, Steven Ojemann, Adam O Hebb, Sara Hanrahan, Zvi Israel, Aviva Abosch
OBJECTIVE Deep brain stimulation (DBS) of the subthalamic nucleus (STN) has become standard care for the surgical treatment of Parkinson's disease (PD). Reliable interpretation of microelectrode recording (MER) data, used to guide DBS implantation surgery, requires expert electrophysiological evaluation. Recent efforts have endeavored to use electrophysiological signals for automatic detection of relevant brain structures and optimal implant target location. The authors conducted an observational case-control study to evaluate a software package implemented on an electrophysiological recording system to provide online objective estimates for entry into and exit from the STN...
May 18, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29775132/evaluation-of-lateral-atlantodental-interval-asymmetry-in-the-pediatric-age-group-normative-values
#2
Stephen K Mendenhall, Andrew Huh, Janit Pandya, Vincent Alentado, Karl Balsara, Chang Ho, Andrew Jea
OBJECTIVE The revelation of normative radiographic measurements for the developing pediatric spine is incomplete. The purpose of this analysis was to determine the normal range of asymmetry of the lateral atlantodental interval (LADI) and define age- and sex-related differences. METHODS A total of 3072 children aged 0-18 years who underwent CT scanning of the cervical spine were identified at Riley Hospital for Children between 2005 and 2017. Patients were stratified by sex and age (in years) into 36 cohorts...
May 18, 2018: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/29772400/neuro-endoscope-for-skull-base-tumors
#3
REVIEW
Hua Gao, Chunhui Liu, Yazhuo Zhang
The endoscope has traditionally been used in neurosurgery to access a lesion within a natural body cavity. The challenge has been to access and resect deep-seated intraparenchymal lesions using a minimally invasive endoscopic technique. Endoscopic endonasal trans-sphenoidal surgery has gained increasing acceptance by otolaryngologists and neurosurgeons. Surgical procedures of the skull base include exposure, resection, and base reconstruction. These approaches start at the sphenoid sinus, which provides a reference point to important vascular and neural structures...
May 14, 2018: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29772371/decompressive-craniectomy-for-traumatic-brain-injury-the-role-of-cranioplasty-and-hydrocephalus-on-outcome
#4
Davide Nasi, Mauro Dobran, Alessandro Di Rienzo, Lucia di Somma, Maurizio Gladi, Elisa Moriconi, Massimo Scerrati, Maurizio Iacoangeli
OBJECTIVE: After severe traumatic brain injury (sTBI) associated with uncontrollable high intracranial pressure (ICP), still today the main challenge for neurosurgeons remains to identify who may obtain benefit from decompressive craniectomy (DC) and which factors after DC influence the prognosis of these patients. The aim of this paper was to identify the pre and post-operative determinants of outcome after DC. METHODS: This retrospective study included all patients undergoing DC for sTBI from 2003 to 2011...
May 14, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29770288/infrasellar-endoscopic-endonasal-approach-for-a-pituitary-adenoma-extending-into-the-third-ventricle-with-anterior-displacement-of-the-pituitary-gland
#5
Georgios A Zenonos, Eric W Wang, Juan Carlos Fernandez-Miranda
Objectives  The current video presents the nuances of the infrasellar endoscopic endonasal approach for a pituitary adenoma extending into the third ventricle, with anterior displacement of the pituitary gland. Design  The video analyzes the presentation, preoperative workup and imaging, surgical steps and technical nuances of the surgery, the clinical outcome, and follow-up imaging. Setting  The patient was treated by a skull base team consisting of a neurosurgeon and an ENT surgeon at a teaching academic institution...
February 2018: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/29770253/simultaneous-cerebrospinal-fluid-and-hematologic-metastases-in-a-high-grade-ependymoma
#6
Daniel Diaz-Aguilar, Sergei Terterov, Alexander M Tucker, Shaina Sedighim, Rudi Scharnweber, Stephanie Wang, Catherine Merna, Shayan Rahman
Background: Ependymomas are relatively uncommon tumors that constitute about 7% of all primary intracranial neoplasms. Among these, high-grade ependymomas are locally aggressive and recur most commonly at the primary site following resection. Ependymomas are also known to be the one glial neoplasm that tends to frequently metastasize inside and outside the central nervous system (CNS) that complicates workup and management. Metastasis due to surgical manipulation is common and neurosurgeons should be well-versed in the most effective methods to remove these tumors in order to avoid such metastases...
2018: Surgical Neurology International
https://www.readbyqxmd.com/read/29767763/commentary-impact-of-hospital-and-health-system-mergers-and-acquisitions-on-the-practicing-neurosurgeon-survey-and-analysis-from-the-council-of-state-neurosurgical-societies-medical-director-s-ad-hoc-representative-section
#7
Richard Menger, Brenton Pennicooke, Todd Barnes, Sarah Fouke, Phillip Kissel, Thomas Origitano, Ramin Rak, Edie Zusman, Jeffrey Cozzens, Andrew Grande, Steven Toms, Sharon Webb, Sherry Taylor
No abstract text is available yet for this article.
June 1, 2018: Neurosurgery
https://www.readbyqxmd.com/read/29767319/endoscopic-vs-microscopic-transsphenoidal-surgery-for-cushing-s-disease-a-systematic-review-and-meta-analysis
#8
Leonie H A Broersen, Nienke R Biermasz, Wouter R van Furth, Friso de Vries, Marco J T Verstegen, Olaf M Dekkers, Alberto M Pereira
PURPOSE: Systematic review and meta-analysis comparing endoscopic and microscopic transsphenoidal surgery for Cushing's disease regarding surgical outcomes (remission, recurrence, and mortality) and complication rates. To stratify the results by tumor size. METHODS: Nine electronic databases were searched in February 2017 to identify potentially relevant articles. Cohort studies assessing surgical outcomes or complication rates after endoscopic or microscopic transsphenoidal surgery for Cushing's disease were eligible...
May 16, 2018: Pituitary
https://www.readbyqxmd.com/read/29766927/microvascular-decompression-versus-stereotactic-radiosurgery-as-primary-treatment-modality-for-trigeminal-neuralgia-a-systematic-review-and-meta-analysis-of-prospective-comparative-trials
#9
REVIEW
Ravi Sharma, Manoj Phalak, Varidh Katiyar, Sachin Borkar, Shashank S Kale, Ashok K Mahapatra
Objective: The current opinion among neurosurgeons regarding the selection between microvascular decompression (MVD) and gamma knife radiosurgery for trigeminal neuralgia is not based on clear evidence. In this meta-analysis, we have attempted to synthesize the findings of the prospective trials comparing the efficacy and complications of the two procedures as primary treatment modality for medically refractory trigeminal neuralgia. Materials and Methods: The authors performed a systematic review of PubMed for manuscripts comparing the efficacy or complications of MVD and stereotactic radiosurgery for medically refractory trigeminal neuralgia...
May 2018: Neurology India
https://www.readbyqxmd.com/read/29766913/telemedicine-and-neurosciences
#10
Krishnan Ganapathy
It is well documented that there is an acute shortage of neurologists and neurosurgeons in India and globally. Despite all efforts, it will be impossible to make available neurospecialists in all suburban and rural areas. Simultaneously, there has been an exponential increase in the growth and development of Information and Communication Technology (ICT). Plummeting costs and unbelievable sophistication in the availability of user-friendly mobile video conferencing devices is making distance meaningless. Geography has become History! Worldwide, the ultraconservative health care industry, in particular, the medical community, has been uniformly slow to adopt and embrace the use of ICT to extend their clinical reach...
May 2018: Neurology India
https://www.readbyqxmd.com/read/29765827/a-cross-sectional-survey-of-the-north-american-skull-base-society-current-practice-patterns-of-vestibular-schwannoma-evaluation-and-management-in-north-america
#11
Matthew L Carlson, Jamie J Van Gompel, R Mark Wiet, Nicole M Tombers, Anand K Devaiah, Devyani Lal, Jacques J Morcos, Michael J Link
Background  Very few studies have examined vestibular schwannoma (VS) management trends across centers and between providers. The objective of this study is to examine current practice trends, variance in treatment philosophies, and nuanced or controversial aspects of VS care across North America. Methods  This is a cross-sectional survey of North American Skull Base Society (NASBS) members who report regular involvement in VS care. Results  A total of 57 completed surveys were returned. Most respondents claimed to have over 20 years of experience and the majority reported working in an academic practice with an affiliated otolaryngology and/or neurosurgery residency program...
June 2018: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/29765825/early-career-surgical-practice-for-cerebellopontine-angle-tumors-in-the-era-of-radiosurgery
#12
Giannantonio Spena, Tommaso Sorrentino, Roberto Altieri, Luca Redaelli de Zinis, Roberto Stefini, Pier Paolo Panciani, Marco Fontanella
We analyzed the outcomes of patients with large cerebellopontine angle (CPA) tumors treated by a skull-base team in which two surgeons (one neurosurgeon and one otological surgeon) were in the beginning of their careers (<40 years old). Data of patients operated on between April 2012 and March 2016 were reviewed. All factors related to surgical training were considered. Thirty-one patients had vestibular schwannomas, while 26 had meningiomas. Mean tumor diameter was 30.6 mm (range, 23-49 mm) for schwannomas and 35 mm (range, 22-51 mm) for meningiomas...
June 2018: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/29765445/augmented-reality-in-neurosurgery
#13
Raniel Tagaytayan, Arpad Kelemen, Cecilia Sik-Lanyi
Neurosurgery is a medical specialty that relies heavily on imaging. The use of computed tomography and magnetic resonance images during preoperative planning and intraoperative surgical navigation is vital to the success of the surgery and positive patient outcome. Augmented reality application in neurosurgery has the potential to revolutionize and change the way neurosurgeons plan and perform surgical procedures in the future. Augmented reality technology is currently commercially available for neurosurgery for simulation and training...
April 2018: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/29763748/right-hemisphere-cognitive-functions-from-clinical-and-anatomical-bases-to-brain-mapping-during-awake-craniotomy-part-i-clinical-and-functional-anatomy
#14
REVIEW
Florian Bernard, Jean-Michel Lemée, Aram Ter Minassian, Philippe Menei
The non-dominant hemisphere (usually the right) is responsible for primary cognitive functions such as visuo-spatial and social cognition. Awake surgery using direct electrical stimulation for right cerebral tumor removal remains challenging due to the complexity of the functional anatomy and difficulties in adapting standard bedside tasks to awake surgery conditions. An understanding of semiology and anatomical bases, along with an analysis of the available cognitive tasks for visuo-spatial and social cognition per operative mapping will allow neurosurgeons to better appreciate the functional anatomy of the right hemisphere and its relevance to tumor surgery...
May 12, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29762769/scandinavian-multicenter-acute-subdural-hematoma-smash-study-study-protocol-for-a-multinational-population-based-consecutive-cohort
#15
(no author information available yet)
BACKGROUND: Traumatic acute subdural hematomas (ASDHs) are associated with high rate of morbidity and mortality, especially in elderly individuals. However, recent reports indicate that the morbidity and mortality rates might have improved. OBJECTIVE: To evaluate postoperative (30-d) mortality in younger vs elderly (≥70 yr) patients with ASDH. Comparing younger and elderly patients, the secondary objectives are morbidity patterns of care and 6 mo outcome according to Glasgow outcome scale (GOS)...
May 14, 2018: Neurosurgery
https://www.readbyqxmd.com/read/29760976/glioblastoma-cells-labeled-by-robust-raman-tags-for-enhancing-imaging-contrast
#16
Li-Ching Huang, Yung-Ching Chang, Yi-Syuan Wu, Wei-Lun Sun, Chan-Chuan Liu, Chun-I Sze, Shiuan-Yeh Chen
Complete removal of a glioblastoma multiforme (GBM), a highly malignant brain tumor, is challenging due to its infiltrative characteristics. Therefore, utilizing imaging agents such as fluorophores to increase the contrast between GBM and normal cells can help neurosurgeons to locate residual cancer cells during image guided surgery. In this work, Raman tag based labeling and imaging for GBM cells in vitro is described and evaluated. The cell membrane of a GBM adsorbs a substantial amount of functionalized Raman tags through overexpression of the epidermal growth factor receptor (EGFR) and "broadcasts" stronger pre-defined Raman signals than normal cells...
May 1, 2018: Biomedical Optics Express
https://www.readbyqxmd.com/read/29753080/palatal-position-of-patient-tracker-for-magnetic-neuronavigation-system-technical-note
#17
Giuseppe Catapano, Francesco Giovanni Sgulò, Piedad Elizabeth Acurio Padilla, Pietro Spennato, Giuseppe Di Nuzzo, Vincenzo Boniello, Matteo de Notaris
OBJECTIVE: Recently, the neuronavigation system (NS) has become an essential intraoperative tool for many neurosurgical procedures allowing for precise lesion localization. For such reason, it is particularly important to avoid errors during the navigation process. In the present study focus on a novel technique with the palatal position of patient tracker to ensure an optimal accuracy during magnetic navigation in different neurosurgical procedures. METHODS: The present retrospective study included a total of 34 patients treated in our Institution between June 2017 and January 2018...
May 9, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29752488/open-resection-of-hypothalamic-hamartomas-for-intractable-epilepsy-revisited-using-intraoperative-mri
#18
Libby van Tonder, Sasha Burn, Anand Iyer, Jo Blair, Mohammed Didi, Michael Carter, Timothy Martland, Conor Mallucci
INTRODUCTION: Hypothalamic hamartomas (HHs) are rare non-neoplastic lesions which cause drug-resistant epilepsy with associated behavioural, psychiatric and endocrine issues. With the development of new minimally invasive techniques for the treatment of HH, there is a need to reappraise the effectiveness and safety of each approach. We review the outcomes of HH patients treated surgically, utilizing intraoperative magnetic resonance imaging (IOMRI), by a team of Alder Hey NHS Foundation Trust tumour and epilepsy neurosurgeons since 2011...
May 11, 2018: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/29751189/risk-factors-predicting-posttraumatic-hydrocephalus-after-decompressive-craniectomy-in-traumatic-brain-injury
#19
Guangfu Di, Qianxin Hu, Dongming Liu, Xiaochun Jiang, Jiu Chen, Hongyi Liu
OBJECTIVE: To identify the risk factors for predicting posttraumatic hydrocephalus (PTH) development after traumatic brain injury (TBI) in patients who underwent decompressive craniectomy (DC). METHODS: This retrospective study included 121 patients who underwent DC after TBI between January 2013 and December 2016 at Yijishan Hospital by 6 different neurosurgeons and were still alive at 6-month follow-up. They were divided into PTH group and non-PTH group according to the presence of PTH...
May 8, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29750100/orofacial-clinical-features-in-arnold-chiari-type-i-malformation-a-case-series
#20
José-Alcides de Arruda, Eugênia Figueiredo, João-Luiz Monteiro, Livia-Mirelle Barbosa, Cleomar Rodrigues, Belmiro Vasconcelos
Background: Arnold Chiari malformation (ACM) is characterized by an anatomical defect at the base of the skull where the cerebellum and the spinal cord herniate through the foramen magnum into the cervical spinal canal. Among the subtypes of the condition, ACM type I (ACM-I) is particularly outstanding because of the severity of symptoms. This study aimed to analyze the orofacial clinical manifestations of patients with ACM-I, and discuss their demographic distribution and clinical features in light of the literature...
April 2018: Journal of Clinical and Experimental Dentistry
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