Posterior Circulation Aneurysms
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Dolan Law Firm
DOLAN LAW FIRM McMATH HEARING POSTPONED TO PROVIDE ADDITIONAL MEDICAL EVIDENCE HYPERLINKED TABLE OF CONTENTS CLICK HOME BUTTON ON LOWER RIGHT CORNER TO RETURN TO TABLE OF CONTENTS Press Release Re continuance 10/06/2014 Fisher's Letter Dr. Charles J. Prestigiacomo, CV Dr. Calixto Machado, CV Dr. Phil Defina, CV Dr. Alan Shewmon, CV Dr. Ivan Mikolaenko, CV Signed Declaration of Dr. Calixto Machado Signed Declaration of Dr Alan Shewmon Signed Declaration of Dr Charles J. Prestigiacomo Signed Declaration of Dr. Defina Signed Declaration of Ivan Mikolaenko, M.D. Petitioner's Objection FOR IMMEDIATE RELEASE McMATH HEARING POSTPONED TO PROVIDE ADDITIONAL MEDICAL EVIDENCE Christopher Dolan, McMath family attorney, has asked Alameda County Superior Court Judge Emillo Grillo to postpone tomorrow’s hearing regarding Jahi McMath’s status as brain dead so that the team of international brain death experts presented by McMath’s attorneys can have time to read and react to a new statement issued by Dr. Paul Fischer, the physician who originally testified as to Jahi’s brain death. This comes following yesterday’s re-appointment of Dr. Fischer as a court consultant by Judge Grillo. McMath’s attorneys have objected to Dr. Fischer’s appointment saying that Fischer had a conflict of interest, and a legal bias, as it is his original determination which is being examined in light of the new facts. No decision on the objection to Dr. Fischer has been issued. Fischer, immediately upon re-appointment by the court issued a letter supporting his earlier determination stating that the fact that the brain had not liquified, Jahi had started her period (menarche), the evidence that there was cerebral blood flow, the recorded movements of Jahi’s body in response to commands, and the presence of electrical activity in her brain as recorded by EEG had no effect on his opinion. -
Views in Some Particular Fields [5, 6], Area
Liu et al. Chinese Neurosurgical Journal (2015) 1:17 DOI 10.1186/s41016-015-0017-0 RESEARCH Open Access Neurosurgical publications in China: an analysis of the web of science database Weiming Liu*, Deling Li, Ming Ni, Wang Jia, Weiqing Wan, Jie Tang and Guijun Jia Abstract Background: Neurosurgery in China has made great progress. The aim of this study was to analyze neurosurgical publications by Chinese authors using the Web of Science database as a way to illustrate the current state of neurosurgery in China. Methods: We searched the Web of Science core database for articles containing “neurosurg*” with or without an author address in “China” to obtain the set of neurosurgical publications in China and worldwide. We then extracted data from the search results to obtain information such as document type, countries/territories, organizations, publication year, title and research area. Then, we analyzed the search results of articles (document type) to generate a citation report. We identified publications by Chinese neurosurgeons that were cited more than 100 times. Results: A total of 165,365 neurosurgical publications were identified. Among them, 10,770 were published by Chinese neurosurgeons. Chinese neurosurgical publications have increased year by year, accounting for 2 % of neurosurgical publications before 2010 and rising to 13 % from 2010 to the present. The most frequent journals for Chinese neurosurgeons differ from the most frequent journals worldwide. We identified 34 Chinese organizations that published more than 100 publications. We also identified 19 studies written by Chinese neurosurgeons that were cited more than 100 times. Basic research represents a large proportion of Chinese publications in this area, while clinical research remains a weak area. -
Predictors of Citations in Neurosurgical Research Chesney S
Original Article Predictors of Citations in Neurosurgical Research Chesney S. Oravec1, Casey D. Frey3, Benjamin W. Berwick3, Lukas Vilella3, Carol A. Aschenbrenner2, Stacey Q. Wolfe1, Kyle M. Fargen1 - OBJECTIVE: The number of citations an article receives evidence, number of participating centers, number of au- is an important measure of impact for published research. thors, and the publishing journal’s impact factor. There are limited published data on predictors of citations in neurosurgery research. We aimed to analyze predictors of citations for neurosurgical articles. - METHODS: All articles published in 14 neurosurgical journals in the year 2015 were examined and data INTRODUCTION collected about their features. The number of citations for n recent years there has been an increase in the volume of each article was tallied using both Web of Science (WoS) research, along with multiple efforts to quantify the productivity and Google Scholar (GS) 2.5 years after their publication in I of researchers and the influence of study results. One long- print. Negative binomial regression was then performed to standing measure of research impact is the journal impact factor, determine the relationship between article features and which is calculated based on the number of citations received by an citation counts for scientific articles. article published in a given journal. Though somewhat controversial for the ways in which this calculation can be skewed, the impact - RESULTS: A total of 3923 articles were analyzed, factor is a well-recognized measure of the significance of scientific comprising 2867 scientific articles (72.6%) and 1056 research. Given the limitations of this one calculation, however, the nonscientific (editorial, commentary, etc.) articles (27.4%). -
Endoscope in Cranial Neurosurgery
Endoscope in cranial neurosurgery Dr. Jean-Yves Fournier Department of Neurosurgery Cantonal Hospital St Gall, Switzerland 1 Endoscope in cranial neurosurgery 1. Introduction .............................................................................................................. 4 2. History of neuroendoscopy and training simulation in neurosurgery .......................... 5 First endoscopes in the history of medicine .......................................................................................................... 5 Transsphenoidal endoscopic surgery ....................................................................................................................... 6 1 From Sir Victor Horsley to Norman Dott. ............................................................................................................... 6 2 Reintroduction of the transsphenoidal approach initiated by Gérard Guiot ......................................... 7 3 Refinement of the method .............................................................................................................................................. 8 Cerebral endoscopy.......................................................................................................................................................... 9 History of training simulation in neurosurgery and its place today .......................................................... 12 Physical simulators .............................................................................................................................................................15 -
Comprehensive Anatomic Assessment of Ipsilateral Pterional Versus Contralateral Subfrontal Approaches to the Internal Carotid Op
Original Article Comprehensive Anatomic Assessment of Ipsilateral Pterional Versus Contralateral Subfrontal Approaches to the Internal Carotid Ophthalmic Segment: A Cadaveric Study and Three-Dimensional Simulation Lucas Ezequiel Serrano1, Eleftherios Archavlis1, Ali Ayyad2, Eike Schwandt1, Amr Nimer3, Florian Ringel1, Sven Rainer Kantelhardt1 - OBJECTIVE: Medially pointing aneurysms of the 7.25 Æ 0.86 mm (VR: 6 Æ 1 mm) contralaterally without ON ophthalmic segment of the internal carotid artery (oICA) mobilization and 2.44 Æ 0.51 mm (VR, 2 Æ 1 mm) ipsilater- represent a neurosurgical challenge. Conventional ipsilat- ally even after AC. Statistical analysis showed that, for eral approaches require internal carotid artery and optic nonprefixed chiasm, contralateral approaches achieved a nerve (ON) mobilization as well as anterior clinoidectomy significantly higher exposure of the ophthalmic artery, (AC), all associated with increased surgical risk. Contra- superior hypophyseal artery, and the superomedial aspect lateral approaches could provide a better exposure of the of the oICA with its perforating branches (all P < 0.01). superomedial aspect of the oICA, ophthalmic artery, and - CONCLUSIONS: Contralateral approaches may enable superior hypophyseal artery, sparing AC and internal ca- successful exposure of the oICA and related vascular rotid artery or ON mobilization. However, the microsurgical structures, reducing the need for AC or ON mobilization. anatomy of this approach has not been systematically Systematic clinical/surgical studies are needed to further studied. In the present work, we exhaustibly analyzed the determine the effectiveness and safety of the approach. anatomic and morphometric characteristics of contralat- eral approaches to the oICA and compared them with those from ipsilateral approaches. -
Extended Endoscopic Endonasal Approaches for Cerebral Aneurysms: Anatomical, Virtual Reality and Morphometric Study
Hindawi Publishing Corporation BioMed Research International Volume 2014, Article ID 703792, 9 pages http://dx.doi.org/10.1155/2014/703792 Research Article Extended Endoscopic Endonasal Approaches for Cerebral Aneurysms: Anatomical, Virtual Reality and Morphometric Study Alberto Di Somma,1,2 Matteo de Notaris,2,3 Vita Stagno,1,2 Luis Serra,4 Joaquim Enseñat,3 Isam Alobid,5 Joan San Molina,6 Joan Berenguer,7 Paolo Cappabianca,1 and Alberto Prats-Galino2 1 Department of Neurosciences, Reproductive and Odontostomatological Sciences, Division of Neurosurgery, Universita` degli Studi di Napoli Federico II, Via Sergio Pansini 5, 80131 Naples, Italy 2 Laboratory of Surgical Neuroanatomy (LSNA), Faculty of Medicine, Universitat de Barcelona, Villarroel 170, 08036 Barcelona, Spain 3 Division of Neurosurgery, Hospital Clinic de Barcelona, Faculty of Medicine, Universitat de Barcelona, Villarroel 170, 08036 Barcelona, Spain 4 Center for Computational Imaging & Simulation Technologies in Biomedicine (CISTIB), Information & Communication Technologies Department, Universitat Pompeu Fabra (UPF), Tanger` 122-140, 08018 Barcelona, Spain 5 Department of Otorhinolaryngology, Rhinology Unit, Hospital Clinic de Barcelona, Faculty of Medicine, Universitat de Barcelona, Villarroel 170, 08036 Barcelona, Spain 6 Medical Sciences Department, Faculty of Medicine, University of Girona, Emili Grahit 77, 17071 Girona, Spain 7 Department of Radiology, Neuroradiology Division, Hospital Clinic of Barcelona, Villarroel 170, 08036 Barcelona, Spain Correspondence should be addressed to Matteo de Notaris; [email protected] Received 30 April 2013; Accepted 24 October 2013; Published 19 January 2014 Academic Editor: Heather F. Smith Copyright © 2014 Alberto Di Somma et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. -
Randomized Study Comparing 3D Virtual Reality and Conventional 2D On-Screen Teaching of Cerebrovascular Anatomy
NEUROSURGICAL FOCUS Neurosurg Focus 51 (2):E18, 2021 Randomized study comparing 3D virtual reality and conventional 2D on-screen teaching of cerebrovascular anatomy *Ladina Greuter, MD,1 Adriana De Rosa,2 Philippe Cattin, PhD,3 Davide Marco Croci, MD,1,4 Jehuda Soleman, MD,1,2 and Raphael Guzman, MD1–3 1Department of Neurosurgery, University Hospital of Basel; 2Faculty of Medicine and 3Department of Biomedical Engineering, University of Basel, Switzerland; and 4Department of Neurosurgery, Clinical Neurosciences Center, University of Utah, Salt Lake City, Utah OBJECTIVE Performing aneurysmal clipping requires years of training to successfully understand the 3D neurovascu- lar anatomy. This training has traditionally been obtained by learning through observation. Currently, with fewer operative aneurysm clippings, stricter work-hour regulations, and increased patient safety concerns, novel teaching methods are required for young neurosurgeons. Virtual-reality (VR) models offer the opportunity to either train a specific surgical skill or prepare for an individual surgery. With this study, the authors aimed to compare the spatial orientation between traditional 2D images and 3D VR models in neurosurgical residents or medical students. METHODS Residents and students were each randomly assigned to describe 4 aneurysm cases, which could be either 2D images or 3D VR models. The time to aneurysm detection as well as a spatial anatomical description was assessed via an online questionnaire and compared between the groups. The aneurysm cases were 10 selected patient cases treated at the authors’ institution. RESULTS Overall, the time to aneurysm detection was shorter in the 3D VR model compared to 2D images, with a trend toward statistical significance (25.77 ± 37.26 vs 45.70 ± 51.94 seconds, p = 0.052). -
A Holistic Investigation of Global Outputs of Covid-19 Publications in Neurology and Neurosurgery
DOI: 10.14744/ejmi.2020.36601 EJMI 2020;4(4):506–512 Research Article A Holistic Investigation of Global Outputs of Covid-19 Publications in Neurology and Neurosurgery Murat Kiraz Department of Neurosurgery, Hitit University, Faculty of Medicine, Corum, Turkey Abstract Objectives: Neurological and neurosurgical management of the global COVID-19 crisis could only be possible by ex- tending the current literature and rapidly delivering this current data to clinicians. The purpose of this study is to ana- lyze the global outputs of COVID-19 in the field of neuroscience through bibliometric methods and provide a guide to researchers who would like to contribute to the literature by conducting research in this field. Methods: Bibliometric analysis was performed for all the publications in Web of Science database in Neurosciences Neurology (Clinical Neurology, Neurosciences, Neuroimaging) research areas and included the “COVID-19”, “coronavi- rus”, “2019-nCoV”, “n-CoV”, and “SARS-CoV-2” keywords in their title. Results: The literature review included 13785 publications in all research areas. Of these publications, 459 were pub- lished in the field of Neurosciences Neurology. The top 5 countries that produced the highest number of publications were the USA (139, 30.2%), Italy (110, 23.9%), UK (57, 12.2%), China (49, 10.6%), and Germany (43, 9.3%). The journals that produced the highest number of publications were Brain Behavior and Immunity, Journal of Neurology, Neurologi- cal Sciences, Nature Human Behavior and Acta Neurochirurgica. The most commonly investigated topics were stroke, encephalitis, depression, mental health, stress, neurosurgery, Parkinson’s disease, Guillain-Barre syndrome, multiple sclerosis, anxiety, and headache. -
Preparing for Conjoined Twins Separation Through Virtual Reality
Proceedings of the 2018 Design of Medical Devices Conference DMD2018 April 9-12, 2018, Minneapolis, MN, USA DMD2018-6895 Downloaded from http://asmedigitalcollection.asme.org/BIOMED/proceedings-pdf/DMD2018/40789/V001T08A009/2787793/v001t08a009-dmd2018-6895.pdf by guest on 30 September 2021 PREPARING FOR CONJOINED TWINS SEPARATION THROUGH VIRTUAL REALITY Bethany Juhnke, MS Alex Mattson, BS Daniel Saltzman, MD, PhD Earl E. Bakken Medical Visible Heart Laboratory Department of Surgery Devices Center University of Minnesota University of Minnesota University of Minnesota Minneapolis, Minnesota, USA Minneapolis, Minnesota, USA Minneapolis, Minnesota, USA Anthony Azakie, MD Eric Hoggard, MD Matthew Ambrose Department of Surgery Department of Radiology Department of Pediatrics University of Minnesota University of Minnesota University of Minnesota Minneapolis, Minnesota, USA Minneapolis, Minnesota, USA Minneapolis, Minnesota, USA Arthur Erdman, PhD Paul Iaizzo, PhD Gwenyth Fischer, MD Earl E. Bakken Medical Visible Heart Laboratory Department of Pediatrics Devices Center University of Minnesota University of Minnesota University of Minnesota Minneapolis, Minnesota, USA Minneapolis, Minnesota, USA Minneapolis, Minnesota, USA BACKGROUND Advances in technology are making virtual reality (VR) available BLUE RED for many different interests. Inexpensive commercially available Twin Twin hardware can be setup at home [1,2], while corporations are using VR to design mechanical systems and train pilots [3,4]. However, limited application is seen in the medical field. Most medical VR simulation focus on medical training, by incorporating anatomical models, physics models, haptics, and visualization to recreate surgical procedures [4-6]. These simulations teach foundational technical skills and show value for preoperative planning and image-guided surgery [4,7]. Simulations provide opportunities to develop surgical plans [7], and practice teamwork skills [8]. -
Virtual Reality Cerebral Aneurysm Clipping Simulation with Real-Time Haptic Feedback
TECHNIQUE ASSESSMENT Ali Alaraj, MD* Virtual Reality Cerebral Aneurysm Clipping Cristian J. Luciano, PhD‡§ Simulation With Real-Time Haptic Feedback Daniel P. Bailey, PhD¶ Abdussalam Elsenousi, MD* BACKGROUND: With the decrease in the number of cerebral aneurysms treated sur- Ben Z. Roitberg, MDk gically and the increase of complexity of those treated surgically, there is a need for Antonio Bernardo, MD# simulation-based tools to teach future neurosurgeons the operative techniques of P. Pat Banerjee, PhD‡§ aneurysm clipping. Fady T. Charbel, MD* OBJECTIVE: To develop and evaluate the usefulness of a new haptic-based virtual reality simulator in the training of neurosurgical residents. *Department of Neurosurgery, University METHODS: A real-time sensory haptic feedback virtual reality aneurysm clipping of Illinois College of Medicine at Chicago, simulator was developed using the ImmersiveTouch platform. A prototype middle Chicago, Illinois; ‡Department of Mechanical and Industrial Engineering, cerebral artery aneurysm simulation was created from a computed tomographic University of Illinois at Chicago, Chicago, angiogram. Aneurysm and vessel volume deformation and haptic feedback are pro- Illinois; §ImmersiveTouch, Inc., Westmont, vided in a 3-dimensional immersive virtual reality environment. Intraoperative aneurysm Illinois; ¶College of Engineering, University of Illinois at Chicago, Chicago, Illinois; rupture was also simulated. Seventeen neurosurgery residents from 3 residency pro- kDivision of Neurosurgery, Department of grams tested the simulator and provided feedback on its usefulness and resemblance to Surgery, University of Chicago, Chicago, real aneurysm clipping surgery. Illinois; and #Department of Neurosurgery, Weill Cornell Medical College, New York RESULTS: Residents thought that the simulation would be useful in preparing for real- life surgery. -
'Trends in Cerebrovascular Surgery and Interventions'
Zurich Open Repository and Archive University of Zurich Main Library Strickhofstrasse 39 CH-8057 Zurich www.zora.uzh.ch Year: 2021 Trends in Cerebrovascular Surgery and Interventions Edited by: Esposito, Giuseppe ; Regli, Luca ; Cenzato, Marco ; Kaku, Yasuhiko ; Tanaka, Michihiro ; Tsukahara, Tetsuya Abstract: This is an open access proceeding book of 9th European-Japanese Cerebrovascular Congress at Milan 2018. Since many experts from Europe and Japan had very important and fruitful discussion on the management of Cerebrovascular diseases, the proceeding book is very attractive for the physician and scientists of the area. Posted at the Zurich Open Repository and Archive, University of Zurich ZORA URL: https://doi.org/10.5167/uzh-205364 Edited Scientific Work Published Version The following work is licensed under a Creative Commons: Attribution 4.0 International (CC BY 4.0) License. Originally published at: Trends in Cerebrovascular Surgery and Interventions. Edited by: Esposito, Giuseppe; Regli, Luca; Cenzato, Marco; Kaku, Yasuhiko; Tanaka, Michihiro; Tsukahara, Tetsuya (2021). Springer: Springer. Acta Neurochirurgica Supplement 132 Giuseppe Esposito · Luca Regli · Marco Cenzato Yasuhiko Kaku · Michihiro Tanaka Tetsuya Tsukahara Editors Trends in Cerebrovascular Surgery and Interventions Acta Neurochirurgica Supplement 132 Series Editor Hans-Jakob Steiger Department of Neurosurgery Heinrich Heine University Düsseldorf, Germany ACTA NEUROCHIRURGICA’s Supplement Volumes provide a unique opportunity to publish the content of special meetings in the form of a Proceedings Volume. Proceedings of international meetings concerning a special topic of interest to a large group of the neuroscience community are suitable for publication in ACTA NEUROCHIRURGICA. Links to ACTA NEUROCHIRURGICA’s distribution network guarantee wide dissemination at a comparably low cost. -
The Supraorbital Endoscopic Approach for Aneurysms Robert Reisch1, Gerrit Fischer2,3, Axel Stadie4, Ralf Kockro1, Evaldas Cesnulis1, Nikolai Hopf 5
Peer-Review Reports The Supraorbital Endoscopic Approach for Aneurysms Robert Reisch1, Gerrit Fischer2,3, Axel Stadie4, Ralf Kockro1, Evaldas Cesnulis1, Nikolai Hopf 5 Key words - OBJECTIVE: To review our surgical experience in minimally invasive trans- - Intracranial aneurysms cranial endoscope-assisted microsurgical treatment of intracranial aneurysms, - Keyhole neurosurgery using the supraorbital keyhole craniotomy. - Minimally invasive neurosurgery - Supraorbital craniotomy - METHODS: The supraorbital keyhole approach was performed through an - Transcranial endoscope-assisted microneurosurgery eyebrow skin incision in 793 cases for treatment of 989 intracranial aneurysms. Of patients, 474 were operated on after subarachnoid hemorrhage, and 319 were Abbreviations and Acronyms operated on under elective conditions. After lateral frontobasal burr hole ISAT: International Subarachnoid Aneurysm Trial MCA: Middle cerebral artery trephination, a limited subfrontal craniotomy was created. To achieve adequate mRS: Modified Rankin scale intraoperative exposure through the limited approach, endoscopes were used TEAM: Transcranial endoscope-assisted routinely. Surgical outcome was assessed using the modified Rankin scale. microneurosurgery - RESULTS: The transcranial endoscope-assisted microneurosurgery technique 1 From the Centre for Endoscopic and was used routinely via a supraorbital approach. In 152 operations (19.1%), the Minimally Invasive Neurosurgery, Zurich, Switzerland; 2Department of Neurosurgery, Johannes endoscope provided important