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Neurosurgery technique

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https://www.readbyqxmd.com/read/28225467/comparison-of-anesthetic-management-and-outcomes-in-patients-having-either-transnasal-or-transoral-endoscopic-odontoid-process-surgery
#1
Matthew A Sexton, Arnoley S Abcejo, Jeffrey J Pasternak
BACKGROUND: Endoscopic neurosurgical procedures involving the upper cervical vertebrae are challenging due to a narrow operating field and close proximity to vital anatomical structures. Historically, transoropharyngeal (transoral) endoscopy has been the preferred approach. More recently, however, an endoscopic transnasal approach was developed as an alternative method in hopes to reduce postoperative dysphagia, a common complication following transoral neurosurgery. METHODS: Twenty-two endoscopic neurosurgical cases involving the odontoid or C1 vertebra were reviewed between January 1, 2005 and December 31, 2015 (17 and 5 through transoral and transnasal approaches, respectively)...
February 20, 2017: Journal of Neurosurgical Anesthesiology
https://www.readbyqxmd.com/read/28207664/descriptive-analysis-of-spinal-neuroaxial-injections-surgical-interventions-and-physical-therapy-utilization-for-degenerative-lumbar-spondylolisthesis-within-medicare-beneficiaries-from-2000-to-2011
#2
Joseph A Sclafani, Alexandra Constantin, Pei-Shu Ho, Venu Akuthota, Leighton Chan
STUDY DESIGN: A retrospective, observational study. OBJECTIVE: The aim of this study was to determine the utilization of various treatment modalities in the management of degenerative spondylolisthesis within Medicare beneficiaries. SUMMARY OF BACKGROUND DATA: Degenerative lumbar spondylolisthesis is a condition often identified in symptomatic low back pain. A variety of treatment algorithms including physical therapy and interventional techniques can be used to manage clinically significant degenerative spondylolisthesis...
15, 2017: Spine
https://www.readbyqxmd.com/read/28194399/the-role-of-permissive-and-induced-hypotension-in-current-neuroanesthesia-practice
#3
Suren Soghomonyan, Nicoleta Stoicea, Gurneet S Sandhu, Jeffrey J Pasternak, Sergio D Bergese
BACKGROUND: Induced hypotension (IH) had been used for decades in neurosurgery to reduce the risk for intraoperative blood loss and decrease blood replacement. More recently, this method fell out of favor because of concerns for cerebral and other end-organ ischemia and worse treatment outcomes. Other contributing factors to the decline in its popularity include improvements in microsurgical technique, widespread use of endovascular procedures, and advances in blood conservation and transfusion protocols...
2017: Frontiers in Surgery
https://www.readbyqxmd.com/read/28191601/the-maxillary-artery-and-its-variants-an-anatomical-study-with-neurosurgical-applications
#4
Jorge E Alvernia, Joaquin Hidalgo, Marc P Sindou, Chad Washington, Gustavo Luzardo, Eddie Perkins, Remi Nader, Patrick Mertens
BACKGROUND: The maxillary artery (MA) has gained attention in neurosurgery particularly in cerebral revascularization techniques, intracranial endonasal approaches and endovascular procedures. OBJECTIVES: To describe and illustrate the anatomy of the MA and its neurosurgical importance in a detailed manner. METHODS: Six cadaveric heads (12 MAs) were injected with latex. The arteries and surrounding structures were dissected and studied using microsurgical techniques...
February 13, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28185969/joseph-buford-pennybacker-cbe-md-frcs-1907-1983-continuing-sir-hugh-cairns-oxford-legacy-and-pioneer-of-the-modern-management-of-cerebral-abscesses
#5
REVIEW
Ravindran Visagan, Harold Ellis
The authors examine the life and contribution of Joseph Buford Pennybacker to British neurosurgery and the modern management of cerebral abscesses. Pennybacker's inspirational journey began with him aspiring to Ephraim McDowell. It saw him cross the Atlantic, learn medicine at Edinburgh, train in neurology at Queen Square in London and learn neurosurgery under Sir Hugh Cairns in Oxford. He navigated a successful career through World War Two and together with Cairns established the Radcliffe Infirmary in Oxford as a highly esteemed neurosurgical unit...
February 6, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28169225/intensity-based-2d-3d-registration-for-lead-localization-in-robot-guided-deep-brain-stimulation
#6
Stefan Hunsche, Dieter Sauner, Faycal El Majdoub, Clemens Neudorfer, Joerg Poggenborg, Axel Gossmann, Mohammad Maarouf
Intraoperative assessment of lead localization has become a standard procedure during deep brain stimulation (DBS) surgery in many centers, allowing immediate verification of targeting accuracy and, if necessary, adjustment of the trajectory. The most suitable imaging modality to determine lead positioning, however, remains controversially discussed. Current approaches entail the implementation of computed tomography and magnetic resonance imaging. In the present study, we adopted the technique of intensity-based 2D 3D registration that is commonly employed in stereotactic radiotherapy and spinal surgery...
February 7, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28162255/direct-electrical-bipolar-electrostimulation-for-functional-cortical-and-subcortical-cerebral-mapping-in-awake-craniotomy-practical-considerations
#7
J Pallud, O Rigaux-Viode, R Corns, J Muto, C Lopez Lopez, C Mellerio, X Sauvageon, E Dezamis
INTRODUCTION: The aim of brain glioma surgery is to maximize the quality of resection, while minimizing the risk of sequelae. Due to the frequent location of gliomas near or within eloquent areas, owing to their infiltrative feature, and because of major interindividual variability, the anatomofunctional organization and connectivity must be studied individually. Therefore, to optimize the benefit-to-risk ratio of surgery, intraoperative functional mapping is extensively used. MATERIAL AND METHODS: This article aims at describing the rationale, indications and practical aspects of intraoperative direct electrical bipolar electrostimulation for cortical and subcortical mapping under awake conditions using the asleep-awake asleep anaesthetic protocol in the setting of cerebral gliomas...
February 2, 2017: Neuro-Chirurgie
https://www.readbyqxmd.com/read/28162217/-clinical-experience-of-302-cases-with-brain-abscess
#8
X P Cui, X W Cai, Z Zhang, N N Gao, P R Liu, J Li, S Y Yang, J N Zhang, X Y Yang
Objective: To compare the diagnosis and treatment experience of brain abscesses and improve prognosis. Methods: The data of 302 patients of brain abscess at Department of Neurosurgery in Tianjin Medical University General Hospital from 1980 to 2014 was analyzed retrospectively. There were 215 male and 87 female patients aged from 11 to 82 years with mean age of (30±8) years. The patients was divided into 1980-2001 group and 2002-2014 group according to different diagnosis and the treatment methods. The therapy methods include operation and conservative treatment...
February 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/28137543/brain-tumor-interface-dissection-technique-with-surgical-blade-from-laboratory-to-neurosurgical-operating-room
#9
Survendra Kumar R Rai, Cristina Mancarella, Atul H Goel
BACKGROUND: Ideal tumor resection requires brain/ spinal cord tumor interface separation in perfect and precise surgical plane within few micrometers for radical tumor resection and maximum normal tissue preservation. Despite the availability of several dissection techniques, search for additional alternatives and an ideal technique continues. We evaluated the feasibility and advantages of dissection using number 15- blade scalpel in special brain tumor surgery situation. We developed a leaf model wherein its outer layer is progressively dissected from its inner skeleton using scalpel...
January 27, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28128705/assessing-residents-operative-skills-for-external-ventricular-drain-placement-and-shunt-surgery-in-pediatric-neurosurgery
#10
Guillermo Aldave, Daniel Hansen, Valentina Briceño, Thomas G Luerssen, Andrew Jea
OBJECTIVE The authors previously demonstrated the use of a validated Objective Structured Assessment of Technical Skills (OSATS) tool for evaluating residents' operative skills in pediatric neurosurgery. However, no benchmarks have been established for specific pediatric procedures despite an increased need for meaningful assessments that can either allow for early intervention for underperforming trainees or allow for proficient residents to progress to conducting operations independently with more passive supervision...
January 27, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28125523/machine-learning-based-classification-of-38-years-of-spine-related-literature-into-100-research-topics
#11
David C Sing, Lionel N Metz, Stefan Dudli
STUDY DESIGN: Retrospective review. OBJECTIVE: To identify the top 100 spine research topics. SUMMARY OF BACKGROUND DATA: Recent advances in "machine learning," or computers learning without explicit instructions, have yielded broad technological advances. Topic modeling algorithms can be applied to large volumes of text to discover quantifiable themes and trends. METHODS: Abstracts were extracted from the National Library of Medicine PubMed database from five prominent peer-reviewed spine journals (European Spine Journal [ESJ], The Spine Journal [SpineJ], Spine, Journal of Spinal Disorders and Techniques [JSDT], Journal of Neurosurgery: Spine [JNS])...
January 25, 2017: Spine
https://www.readbyqxmd.com/read/28120757/-bone-substitutes
#12
Fabienne Jordana, Catherine Le Visage, Pierre Weiss
Bone substitutes, used to fill a defect after a surgery or a trauma, provide a mechanical support and might induce bone healing. They constitute an alternative to autogenous bone grafts, the 'gold standard' which remains the reference despite its risk of postoperative complications. The clinician choice of a bone substitute is based on the required bone volume, the handling (injectability, malleability) and mechanical properties (setting time, viscosity, resorbability among others) of the material. Bone substitutes are commonly used in orthopedic surgery, neurosurgery, stomatology and dental applications...
January 2017: Médecine Sciences: M/S
https://www.readbyqxmd.com/read/28120080/functional-magnetic-resonance-imaging-fmri-pre-intraoperative-tractography-in-neurosurgery-the-experience-of-sant-andrea-rome-university-hospital
#13
Giancarlo D'Andrea, Giuseppe Trillo', Veronica Picotti, Antonino Raco
BACKGROUND: The goal of neurosurgery for cerebral intraparenchymal neoplasms of the eloquent areas is maximal resection with the preservation of normal functions, and minimizing operative risk and postoperative morbidity. Currently, modern technological advances in neuroradiological tools, neuronavigation, and intraoperative magnetic resonance imaging (MRI) have produced great improvements in postoperative morbidity after the surgery of cerebral eloquent areas. The integration of preoperative functional MRI (fMRI), intraoperative MRI (volumetric and diffusion tensor imaging [DTI]), and neuronavigation, defined as "functional neuronavigation" has improved the intraoperative detection of the eloquent areas...
2017: Acta Neurochirurgica. Supplement
https://www.readbyqxmd.com/read/28120065/skull-bone-defects-reconstruction-with-custom-made-titanium-graft-shaped-with-electron-beam-melting-technology-preliminary-experience-in-a-series-of-ten-patients
#14
Natale Francaviglia, Rosario Maugeri, Antonino Odierna Contino, Francesco Meli, Vito Fiorenza, Gabriele Costantino, Roberto Giuseppe Giammalva, Domenico Gerardo Iacopino
BACKGROUND: Cranioplasty represents a challenge in neurosurgery. Its goal is not only plastic reconstruction of the skull but also to restore and preserve cranial function, to improve cerebral hemodynamics, and to provide mechanical protection of the neural structures. The ideal material for the reconstructive procedures and the surgical timing are still controversial. Many alloplastic materials are available for performing cranioplasty and among these, titanium still represents a widely proven and accepted choice...
2017: Acta Neurochirurgica. Supplement
https://www.readbyqxmd.com/read/28112550/intraoperative-multi-exposure-speckle-imaging-of-cerebral-blood-flow
#15
Lisa M Richards, Sm Shams Kazmi, Katherine E Olin, James S Waldron, Douglas J Fox, Andrew K Dunn
Multiple studies have demonstrated that laser speckle contrast imaging (LSCI) has high potential to be a valuable cerebral blood flow monitoring technique during neurosurgery. However, the quantitative accuracy and sensitivity of LSCI is limited, and highly dependent on the exposure time. An extension to LSCI called multi-exposure speckle imaging (MESI) overcomes these limitations, and was evaluated intraoperatively in patients undergoing brain tumor resection. This clinical study ( n = 8) recorded multiple exposure times from the same cortical tissue area spanning 0...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28069539/quantification-of-local-geometric-distortion-in-structural-magnetic-resonance-images-application-to-ultra-high-fields
#16
Jonathan C Lau, Ali R Khan, Tony Y Zeng, Keith MacDougall, Andrew G Parrent, Terry M Peters
Ultra-high field magnetic resonance imaging (MRI) provides superior visualization of brain structures compared to lower fields, but images may be prone to severe geometric inhomogeneity. We propose to quantify local geometric distortion at ultra-high fields in in vivo datasets of human subjects scanned at both ultra-high field and lower fields. By using the displacement field derived from nonlinear image registration between images of the same subject, focal areas of spatial uncertainty are quantified. Through group and subject-specific analysis, we were able to identify regions systematically affected by geometric distortion at air-tissue interfaces prone to magnetic susceptibility, where the gradient coil non-linearity occurs in the occipital and suboccipital regions, as well as with distance from image isocenter...
January 6, 2017: NeuroImage
https://www.readbyqxmd.com/read/28069420/the-authors-herby-confirm-that-this-manuscript-has-neither-been-published-nor-submitted-to-any-other-journal-confocal-laser-endomicroscopy-in-neurosurgery-an-alternative-to-instantaneous-sections
#17
David Breuskin, Jacek Szczygielski, Steffi Urbschat, Yoo-Jin Kim, Joachim Oertel
INTRODUCTION: Intraoperative distinction of brain tumor from the surround brain is one of the crucial challenges in neurooncological surgery. In this study, confocal laser endomicroscope (CLE) findings were directly compared with intraoperative instantaneous sections by the neuropathologist in a blinded fashion. MATERIAL AND METHODS: The imaging device comprises of a rigid endoscope with Hopkins-Rod lenses and a red wave length laser with a scanning depth of 80 μm...
January 6, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28048837/mo-de-202-01-image-guided-focused-ultrasound-surgery-and-therapy
#18
K Farahani
At least three major trends in surgical intervention have emerged over the last decade: a move toward more minimally invasive (or non-invasive) approach to the surgical target; the development of high-precision treatment delivery techniques; and the increasing role of multi-modality intraoperative imaging in support of such procedures. This symposium includes invited presentations on recent advances in each of these areas and the emerging role for medical physics research in the development and translation of high-precision interventional techniques...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048186/mo-de-202-02-advances-in-image-registration-and-reconstruction-for-image-guided-neurosurgery
#19
J Siewerdsen
At least three major trends in surgical intervention have emerged over the last decade: a move toward more minimally invasive (or non-invasive) approach to the surgical target; the development of high-precision treatment delivery techniques; and the increasing role of multi-modality intraoperative imaging in support of such procedures. This symposium includes invited presentations on recent advances in each of these areas and the emerging role for medical physics research in the development and translation of high-precision interventional techniques...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047534/mo-de-202-03-image-guided-surgery-and-interventions-in-the-advanced-multimodality-image-guided-operating-amigo-suite
#20
T Kapur
At least three major trends in surgical intervention have emerged over the last decade: a move toward more minimally invasive (or non-invasive) approach to the surgical target; the development of high-precision treatment delivery techniques; and the increasing role of multi-modality intraoperative imaging in support of such procedures. This symposium includes invited presentations on recent advances in each of these areas and the emerging role for medical physics research in the development and translation of high-precision interventional techniques...
June 2016: Medical Physics
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