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Neurosurgery technique

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https://www.readbyqxmd.com/read/28438070/creation-of-a-novel-simulator-for-minimally-invasive-neurosurgery-fusion-of-3d-printing-and-special-effects
#1
Peter Weinstock, Roberta Rehder, Sanjay P Prabhu, Peter W Forbes, Christopher J Roussin, Alan R Cohen
OBJECTIVE Recent advances in optics and miniaturization have enabled the development of a growing number of minimally invasive procedures, yet innovative training methods for the use of these techniques remain lacking. Conventional teaching models, including cadavers and physical trainers as well as virtual reality platforms, are often expensive and ineffective. Newly developed 3D printing technologies can recreate patient-specific anatomy, but the stiffness of the materials limits fidelity to real-life surgical situations...
April 25, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28434964/reconstruction-of-cranial-vault-defect-with-polyetheretherketone-peek-implants
#2
Pierre Brandicourt, Franck Delanoé, Franck-Emmanuel Roux, Florian Jalbert, David Brauge, Frédéric Lauwers
OBJECT: Reconstruction of a cranial vault defect is a frequent challenge in neurosurgery. Polyetheretherketone (PEEK) is used in many types of prostheses and has been employed for 10 years in our institution (University Hospital of Toulouse - France). The objectives of this study are to describe the benefits and drawbacks of reconstructing the cranial vault defect with a PEEK prosthesis. METHODS: Clinical data of the 37 patients who received a reconstruction with a custom-made PEEK prosthesis from 2007 to 2015 were retrospectively analysed...
April 18, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28434953/the-multi-scope-technique-for-microvascular-decompression
#3
Yuichi Nagata, Tadashi Watanabe, Tetsuya Nagatani, Kazuhito Takeuchi, Jonsu Chu, Toshihiko Wakabayashi
BACKGROUND: The performance of endoscopic surgery has rapidly become widespread in neurosurgery in recent years. Endoscopy can offer close and panoramic surgical views with fine illumination, even in the deep intracranial area. However, it also has the following serious drawback: an intracranial blind area between the field lens of the endoscope and the site of the dural opening. This blind area cannot be viewed on the endoscopic monitor, and several surgical complications, including accidental intracranial neurovascular structural injury, can occur in this area...
April 18, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28418345/cricotracheal-resection-in-a-patient-with-severe-subglottic-stenosis-advantages-of-a-temporary-non-cannulated-tracheostomy
#4
Todor Miroslavov Popov, Tzvetomir Marinov, Julian Rangachev, Dimitar Konov, Maya Belitova
BACKGROUND: Stenosis in the area of the cricotracheal segment is still a challenging problem to be dealt with. Post-intubational cases mark an increase in recent years due to the advances in intensive care, thoracic surgery and neurosurgery departments. CASE REPORT: This paper describes a case report of a patient with severe subglottic stenosis (grade III according to the Cotton-Myer scale), introduces a new option in cricotracheal resections - postoperative temporary non-cannulated tracheostomy and describes its advantages...
April 5, 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/28402528/macrovascular-decompression-of-the-brainstem-and-cranial-nerves-evolution-of-an-anteromedial-vertebrobasilar-artery-transposition-technique
#5
Omar Choudhri, Ian D Connolly, Michael T Lawton
BACKGROUND: Tortuous and dolichoectatic vertebrobasilar arteries can impinge on the brainstem and cranial nerves to cause compression syndromes. Transposition techniques are often required to decompress the brainstem with dolichoectatic pathology. We describe our evolution of an anteromedial transposition technique and its efficacy in decompressing the brainstem and relieving symptoms. OBJECTIVE: To present the anteromedial vertebrobasilar artery transposition technique for macrovascular decompression of the brainstem and cranial nerves...
April 11, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28397668/-topical-haemostatic-agents-in-neurosurgery
#6
Jon Foss-Skiftesvik, Rachid Bech-Azeddine
Haemostasis is of fundamental significance in neurosurgery, and insufficient control of bleeding is associated with morbidity and mortality. Topical haemostatic agents play an important role, as the characteristics of neuronal tissue limit the use of classical surgical haemostasis techniques. Appropriate choice of agent depends on the location and type of bleeding, but also on knowledge of the products' mechanisms of action, indications, price and accessibility. Biological products are superior to the mechanical in efficacy but require more preparation and are significantly more cost-intensive...
January 30, 2017: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/28383672/cerebral-revascularization-for-aneurysms-in-the-flow-diverter-era
#7
David C Straus, Harley Brito da Silva, Lynn McGrath, Michael R Levitt, Louis J Kim, Basavaraj V Ghodke, Jason K Barber, Laligam N Sekhar
BACKGROUND: Cerebral bypass has been an important tool in the treatment of complex intracranial aneurysms. The recent advent of flow-diverting stents (FDS) has expanded the capacity for endovascular arterial reconstruction. OBJECTIVE: We investigated how the advent of FDS has impacted the application and outcomes of cerebral bypass in the treatment of intracranial aneurysms. METHODS: We reviewed a consecutive series of cerebral bypasses during aneurysm surgery over the course of 10 years...
April 5, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28373849/deep-brain-stimulation-in-anorexia-nervosa-hope-for-the-hopeless-or-exploitation-of-the-vulnerable-the-oxford-neuroethics-gold-standard-framework
#8
Rebecca J Park, Ilina Singh, Alexandra C Pike, Jacinta O A Tan
Neurosurgical interventions for psychiatric disorders have a long and troubled history (1, 2) but have become much more refined in the last few decades due to the rapid development of neuroimaging and robotic technologies (2). These advances have enabled the design of less invasive techniques, which are more focused, such as deep brain stimulation (DBS) (3). DBS involves electrode insertion into specific neural targets implicated in pathological behavior, which are then repeatedly stimulated at adjustable frequencies...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/28363327/prevalence-and-characterization-of-postoperative-pain-in-the-postanaesthesia-care-unit
#9
N Cabedo, R Valero, A Alcón, C Gomar
INTRODUCTION: Immediate postoperative pain occurs initially after surgery, while the patient is in the Post-Anaesthesia Recovery Unit. Very few studies assess this pain in this most immediate phase. OBJECTIVE: Cross-sectional study of the prevalence and characteristics of immediate postoperative pain in patients after surgery. MATERIAL AND METHODS: Between August 2014 and February 2015, a sample of 503 patients from the Post-Anaesthesia Recovery Unit was followed...
March 28, 2017: Revista Española de Anestesiología y Reanimación
https://www.readbyqxmd.com/read/28362934/three-dimensional-printed-modeling-of-diffuse-low-grade-gliomas-and-associated-white-matter-tract-anatomy
#10
Jayesh P Thawani, Nickpreet Singh, Jared M Pisapia, Kalil G Abdullah, Drew Parker, Bryan A Pukenas, Eric L Zager, Ragini Verma, Steven Brem
BACKGROUND: Diffuse low-grade gliomas (DLGGs) represent several pathological entities that infiltrate and invade cortical and subcortical structures in the brain. OBJECTIVE: To describe methods for rapid prototyping of DLGGs and surgically relevant anatomy. METHODS: Using high-definition imaging data and rapid prototyping technologies, we were able to generate 3 patient DLGGs to scale and represent the associated white matter tracts in 3 dimensions using advanced diffusion tensor imaging techniques...
April 1, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28347680/top-50-most-cited-articles-on-primary-tumors-of-the-spine
#11
REVIEW
Nima Alan, Jonathan Cohen, Alp Ozpinar, Nitin Agarwal, Adam S Kanter, David O Okonkwo, D Kojo Hamilton
Citation analysis was performed in order to identify the top 50 most cited articles pertaining to the field of primary spinal tumors. This collection of articles highlights important trends in the neurosurgical literature. We searched the Thomson Reuters Web of Knowledge in order to identify articles pertaining to primary tumors of the spine. Impertinent articles were removed. The top 50 most cited articles were identified. Thereafter, article characteristics were determined including article type, article topic, level of evidence, and citation rate...
March 24, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28346963/point-of-care-testing-in-neurosurgery
#12
Christopher Beynon, Lars Wessels, Andreas W Unterberg
Coagulation disorders can have a major impact on the outcome of neurosurgical patients. The central nervous system is located within the closed space of the skull, and therefore, intracranial hemorrhage can lead to intracranial hypertension. Acute brain injury has been associated with alterations of various hemostatic parameters. Point-of-care (POC) techniques such as rotational thromboelastometry are able to identify markers of coagulopathy which are not reflected by standard assessment of hemostasis (e.g...
March 27, 2017: Seminars in Thrombosis and Hemostasis
https://www.readbyqxmd.com/read/28343872/orbital-decompression-for-thyroid-eye-disease
#13
Daniel B Rootman
The literature regarding orbital decompression for thyroid eye disease is vast, spanning multiple specialty areas including neurosurgery, head and neck, maxillofacial and ophthalmic plastic surgery. Although techniques have advanced considerably over the more than 100 years during which this procedure has been performed, the four major approaches remain: transorbital, transcranial, transantral and transnasal. The explosion in literature related to orbital decompression has mostly involved minor technical variations on broader surgical themes...
March 23, 2017: Survey of Ophthalmology
https://www.readbyqxmd.com/read/28338432/dual-labeling-with-5-aminolevulinic-acid-and-fluorescein-for-fluorescence-guided-resection-of-high-grade-gliomas-technical-note
#14
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/28300715/operative-learning-curve-after-transition-to-endoscopic-transsphenoidal-pituitary-surgery
#15
Tasneem Shikary, Norberto Andaluz, Jareen Meinzen-Derr, Collin Edwards, Philip Theodosopoulos, Lee A Zimmer
OBJECTIVES: No clear consensus yet defines the endpoints for operative learning curves in the transition to minimally invasive endoscopic techniques. This retrospective review of our first 202 patients who underwent endoscopic pituitary resection examines the statistical learning curve related to operative times--a measure of our surgical team's efficiency and complication rates, a reflection of surgical skill and maturity. METHODS: Retrospective chart review included patient demographics, tumor type, operative times, complication rates, and follow-up...
March 11, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28300710/frameless-and-maskless-stereotactic-navigation-with-a-skull-mounted-tracker
#16
Andrew A Fanous, Timothy G White, Matthew B Hirsch, Shamik Chakraborty, Peter D Costantino, David J Langer, John A Boockvar
OBJECTIVE: In this series, we present 3 cases that show the use of a skull-mounted tracker for image-guided navigation for anterior skull base surgery and ventricular catheter placement procedures. This system obviates fiducials or face masks during the surgical procedure itself and allows for the performance of facial incisions using the Weber-Ferguson approach. METHODS: Our series presents the use of a novel intraoperative navigational system that uses a skull-mounted tracker to navigated anterior skull base surgery...
March 12, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28292695/neurosurgical-relevance-of-the-dissection-of-the-diencephalic-white-matter-tracts-using-the-klingler-technique
#17
Susana M Silva, Diogo Cunha-Cabral, José Paulo Andrade
OBJECTIVE: The Klingler fiber dissection technique is a relevant and reliable method for neurosurgery to identify with accuracy the fine structure of the brain anatomy highlighting white matter tracts. In order to demonstrate the significance of the application of this technique, we aimed to observe the course and relations of the mammillothalamic and habenulo-interpeduncular tracts as there are very few papers showing these important diencephalic tracts. MATERIAL AND METHODS: Twelve formalin-fixed brains were dissected using the Klingler technique in order to expose the medial diencephalic surface...
March 2, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28291426/case-report-of-a-6-year-old-girl-with-mycoplasma-hominis-ventriculoperitoneal-shunt-infection
#18
Masanori Sato, Noriko Kubota, Yoshihiko Katsuyama, Yota Suzuki, Yosuke Miyairi, Kisei Minami, Masashi Kasai
Mycoplasma hominis is a rare causative pathogen for surgical site infections after neurosurgical procedures. This organism lacks a cell wall, rendering it undetectable by Gram staining and making it resistant to beta-lactam antibiotics. In addition, some special techniques are required to identify this organism. Thus, it is very difficult to diagnose infections caused by this pathogen. Here, the authors report a pediatric case of M. hominis ventriculoperitoneal shunt (VPS) infection with central nervous system involvement for which beta-lactam antibiotics were not effective and Gram staining revealed no pathogens...
March 3, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28291221/-a-new-concept-of-organization-and-scope-of-neurosurgical-care-in-the-us-army-during-armed-conflicts-in-the-early-2000s
#19
Yu V Khrapov, D E Alekseev, D V Svistov
Military operations in various parts of the world in the early 2000s are becoming more regionalized; new warfare tactics emerge, which makes it necessary to review and modify the neurosurgical care system. The article reviews the results of original studies on this issue and summarizes the experience of the US Army medical service in Afghanistan and Iraq. The article discusses the structure of sanitary losses, organization and scope of medical and evacuation neurosurgical measures, types and techniques of surgical interventions, and the rate of complications...
2017: Zhurnal Voprosy Neĭrokhirurgii Imeni N. N. Burdenko
https://www.readbyqxmd.com/read/28291211/-surgical-anatomy-of-the-peri-insular-association-tracts-part-i-the-superior-longitudinal-fascicle-system
#20
A E Bykanov, D I Pitskhelauri, A I Batalov, I N Pronin, M A Shkarubo, G F Dobrovol'sky, G L Kobyakov, S B Buklina, V L Puchkov, N E Zakharova, A S Smirnov, A Z Sanikidze, D A Gol'bin, E L Pogosbekyan, E S Kudieva, A M Shkatova, A A Potapov
AIM: To study the peri-insular association tract anatomy and define the permissible anatomical boundaries for resection of glial insular tumors with allowance for the surgical anatomy of the peri-insular association tracts. MATERIAL AND METHODS: In an anatomic study of the superior longitudinal fascicle system (SLF I, SLF II, SLF III, arcuate fascicle), we used 12 anatomical specimens (6 left and 6 right hemispheres) prepared according to the Klingler's fiber dissection technique...
2017: Zhurnal Voprosy Neĭrokhirurgii Imeni N. N. Burdenko
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