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Neurosurgical planning

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https://www.readbyqxmd.com/read/28220369/severe-head-injury-in-very-old-patients-to-treat-or-not-to-treat-results-of-an-online-questionnaire-for-neurosurgeons
#1
Claudia Unterhofer, Sebastian Hartmann, Christian F Freyschlag, Claudius Thomé, Martin Ortler
Due to the aging population, neurosurgeons are confronted with an increasing number of very old patients suffering from traumatic brain injury. Many of these patients present with an acute subdural hematoma. There is a lack of data on neurosurgical decision-making in elderly people. We investigated the importance of imaging criteria, patients' wishes, their surrogates' wishes, and patient demographics on treatment decisions chosen by neurosurgeons. An online questionnaire was sent to all German neurosurgical units via the German Society of Neurosurgery (DGNC)...
February 20, 2017: Neurosurgical Review
https://www.readbyqxmd.com/read/28217389/management-of-parturients-in-active-labor-with-arnold-chiari-malformation-tonsillar-herniation-and-syringomyelia
#2
Ramsis F Ghaly, Tatiana Tverdohleb, Kenneth D Candido, Nebojsa Nick Knezevic
BACKGROUND: Arnold-Chiari malformation Type 1 (ACM-1) in parturients is a topic of ongoing discussion between obstetricians and anesthesiologists. The primary unanswered question remains; How should the anesthesia provider proceed with labor analgesia and anesthesia for cesarean section when confronted with an advanced, asymptomatic, or minimally symptomatic case of ACM-1 during labor? CASE DESCRIPTION: A 24-year-old, ASA II, G1P0 full-term parturient presented to Labor and Delivery for vaginal delivery...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28216396/estimating-the-cost-of-neurosurgical-procedures-in-a-low-income-setting-an-observational-economic-analysis
#3
Jihad Abdelgadir, Tu Tran, Alex Muhindo, Doomwin Obiga, John Mukasa, Hussein Ssenyonjo, Michael Muhumza, Joel Kiryabwire, Michael M Haglund, Frank A Sloan
BACKGROUND: There are no data on cost of neurosurgery in low- and middle-income countries. This study's objective was to estimate the cost of neurosurgical procedures in a low-resource setting to better inform resource allocation and health sector planning. METHODS: In this observational economic analysis, micro-costing was used to estimate the direct and indirect costs of neurosurgical procedures at Mulago National Referral Hospital (Kampala, Uganda). RESULTS: During the study period, October 2014-September 2015, a total of 1,440 charts were reviewed...
February 16, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28170143/prevalence-of-brain-injuries-and-recurrence-of-seizures-in-children-with-post-traumatic-seizures
#4
Mohamed K Badawy, Peter S Dayan, Michael G Tunik, Frances M Nadel, Kathleen A Lillis, Michelle Miskin, Dominic A Borgialli, Michael C Bachman, Shireen M Atabaki, John D Hoyle, James F Holmes, Nathan Kuppermann
OBJECTIVES: Computed tomography (CT) is often used in the emergency department (ED) evaluation of children with post-traumatic seizures (PTS); however, the frequency of traumatic brain injuries (TBI) and short-term seizure recurrence is lacking. Our main objective was to evaluate the frequency of TBI on CT and short-term seizure recurrence in children with PTS. We also aimed to determine the associations between the likelihood of TBI on CT with the timing of onset of PTS after the traumatic event and duration of PTS...
February 7, 2017: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/28162253/-intramedullary-ependymomas-a-french-retrospective-multicenter-study-of-221%C3%A2-cases
#5
N Aghakhani, M Messerer, P David, A Herbrecht, F Parker
AIM: Intramedullary ependymomas (IE) are the most frequent intramedullary tumors in the adult population. The gold standard treatment is to obtain gross total removal without any new postoperative neurological deficit. The authors report the results of a multicenter series with a long-term follow-up and the analysis of clinical, radiological, surgical data as well as the complementary treatments. MATERIALS AND METHODS: A retrospective analysis of adult patients with IE operated on between January 1984 and December 2011 at 7 French centers (Bordeaux, Kremlin-Bicêtre, Lille, Lyon, Marseille, Montpellier, Nice, and Nîmes) was performed...
February 2, 2017: Neuro-Chirurgie
https://www.readbyqxmd.com/read/28140499/deterministic-tractography-of-the-descending-tract-of-the-spinal-trigeminal-nerve-using-diffusion-tensor-imaging
#6
Daniel J Burkett, Jonathan R Garst, Jacquelyn P Hill, Anthony Kam, Douglas E Anderson
BACKGROUND AND PURPOSE: Pain information from the face enters the pons via the trigeminal nerve before creating an anatomical "elbow" that turns caudally into the spinal trigeminal tract (SpTV). Visualization of the descending tract of the trigeminal nerve as it begins its descent from the nerve root entry zone (NREZ) in the pons would improve the accuracy of current procedures aimed at altering or lesioning the trigeminal nerve within the brainstem. The focus of this study was to develop a standardized protocol using diffusion tensor imaging (DTI) and deterministic tractography methods to image the SpTV...
January 31, 2017: Journal of Neuroimaging: Official Journal of the American Society of Neuroimaging
https://www.readbyqxmd.com/read/28075197/validation-of-an-established-prognostic-score-after-re-irradiation-of-recurrent-glioma
#7
Kerstin A Kessel, Josefine Hesse, Christoph Straube, Claus Zimmer, Friederike Schmidt-Graf, Jürgen Schlegel, Bernhard Meyer, Stephanie E Combs
BACKGROUND: Re-irradiation (Re-RT) is offered widely in clinical routine, and has been established as a key element in the treatment of recurrent gliomas. At our center, generally re-resection is performed widely by an experienced neurosurgical team. Thus, Re-RT mostly offered to patients with macroscopic residuals or irresectable lesions, is applied later compared to other centers. Therefore, we sought to validate the Combs Prognostic Score developed in 2012 using our independent patient cohort...
January 11, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28038480/intracranial-ameloblastoma-arising-from-the-maxilla-an-interdisciplinary-surgical-approach
#8
Johanna Quick-Weller, Felix Koch, Nazife Dinc, Stephanie Lescher, Peter Baumgarten, Patrick Harter, Friedrich Scheerer, Robert Sader, Volker Seifert, Gerhard Marquardt, Thomas Freiman
Background Ameloblastomas are a rare tumor entity accounting for only 10% of all odontogenic tumors. They mostly originate from the mandible. Only a few cases are known to grow aggressively and to invade the orbit, nasal cavity, or even the brain. Patient and Methods/Case Report We present the case of a 57-year-old patient who was admitted with a huge tumor involving the nasal cavity, the left maxilla, and the anterior fossa. Histologic diagnosis was made by biopsy. A combined two-stage neurosurgical maxillofacial approach was planned...
December 30, 2016: Journal of Neurological Surgery. Part A, Central European Neurosurgery
https://www.readbyqxmd.com/read/28017754/an-ethiopian-training-programme-in-neurosurgery-with-norwegian-support
#9
Morten Lund-Johansen, Tsegazeab Laeke, Abenezer Tirsit, Tadios Munie, Mersha Abebe, Abat Sahlu, Hagos Biluts, Knut Wester
After a four-year planning period, a joint Ethiopian/Norwegian training program in neurosurgery was started in June 2006. The collaborating partners were the Addis Ababa University, Department of surgery, Tikur Anbessa specialized hospital, the University of Bergen, Haukeland University hospital and Myungsung Christian Medical Center, a Korean missionary hospital in Addis Ababa. A Memorandum of understanding was signed at Dean/CEO levels. Although other initiatives have been involved in supporting neurosurgery in Addis Ababa during the same period, this institutionally founded program has been the main external contributor to neurosurgical capacity building through the education of 21 Ethiopian neurosurgeons, and in supporting a sustainable environment for neurosurgical training within a network of five centres in Addis Ababa...
December 22, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/28006854/quantification-of-human-upper-extremity-nerves-and-fascicular-anatomy
#10
Natalie A Brill, Dustin J Tyler
INTRODUCTION: This paper provides detailed quantification of upper extremity nerve and fascicular anatomy. The purpose is to provide values and trends in neural features useful for clinical applications and neural interface device design. METHODS: Nerve cross sections were taken from 4 ulnar, 4 median, and 3 radial nerves from 5 arms of 3 human cadavers. Quantified nerve features included cross sectional area, minor diameter, and major diameter. Fascicular features analyzed included count, perimeter, area, and position...
December 22, 2016: Muscle & Nerve
https://www.readbyqxmd.com/read/27981029/automated-white-matter-fiber-tract-identification-in-patients-with-brain-tumors
#11
Lauren J O'Donnell, Yannick Suter, Laura Rigolo, Pegah Kahali, Fan Zhang, Isaiah Norton, Angela Albi, Olutayo Olubiyi, Antonio Meola, Walid I Essayed, Prashin Unadkat, Pelin Aksit Ciris, William M Wells, Yogesh Rathi, Carl-Fredrik Westin, Alexandra J Golby
We propose a method for the automated identification of key white matter fiber tracts for neurosurgical planning, and we apply the method in a retrospective study of 18 consecutive neurosurgical patients with brain tumors. Our method is designed to be relatively robust to challenges in neurosurgical tractography, which include peritumoral edema, displacement, and mass effect caused by mass lesions. The proposed method has two parts. First, we learn a data-driven white matter parcellation or fiber cluster atlas using groupwise registration and spectral clustering of multi-fiber tractography from healthy controls...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/27941480/the-role-of-simulation-in-planning-intraoperative-magnetic-resonance-imaging-guided-neurosurgical-procedures
#12
Tumul Chowdhury, Sergio D Bergese, Suren Soghomonyan, Ronald B Cappellani
Simulation of the actual procedure is a simple and yet effective method of increasing patient safety and reducing the rate of unexpected adverse effects. We present our experience with 2 cases of preprocedural simulation on healthy volunteers that were performed in the intraoperative magnetic resonance imaging suite. During one of the cases, we also simulated a scenario of sudden cardiac arrest. Such an approach helped us to refine the procedures and coordinate the work of different teams within the intraoperative magnetic resonance imaging suite as well as improve the quality of patient management...
December 9, 2016: A & A Case Reports
https://www.readbyqxmd.com/read/27931948/nonmissile-penetrating-head-injuries-surgical-management-and-review-of-the-literature
#13
Xi-Sheng Li, Jun Yan, Chang Liu, Yu Luo, Xing-Sheng Liao, Liang Yu, Shao-Wen Xiao
BACKGROUND: Nonmissile penetrating head injuries (NPHIs) in the civilian population are rare but potentially fatal. Although numerous cases have been reported in the literature, the surgical management of such injuries is still ambiguous, especially with development of surgical techniques. Here, we report 5 cases of NPHIs managed with different surgical techniques and review the literature on surgical treatment of these injuries to outline the appropriate management for these patients from a neurosurgical perspective...
December 5, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27920940/3d-printing-in-neurosurgery-a-systematic-review
#14
REVIEW
Michael Randazzo, Jared M Pisapia, Nickpreet Singh, Jayesh P Thawani
BACKGROUND: The recent expansion of three-dimensional (3D) printing technology into the field of neurosurgery has prompted a widespread investigation of its utility. In this article, we review the current body of literature describing rapid prototyping techniques with applications to the practice of neurosurgery. METHODS: An extensive and systematic search of the Compendex, Scopus, and PubMed medical databases was conducted using keywords relating to 3D printing and neurosurgery...
2016: Surgical Neurology International
https://www.readbyqxmd.com/read/27910205/neurosurgical-robotic-arm-drilling-navigation-system
#15
Chung-Chih Lin, Hsin-Cheng Lin, Wen-Yo Lee, Shih-Tseng Lee, Chieh-Tsai Wu
BACKGROUND: The aim of this work was to develop a neurosurgical robotic arm drilling navigation system that provides assistance throughout the complete bone drilling process. METHODS: The system comprised neurosurgical robotic arm navigation combining robotic and surgical navigation, 3D medical imaging based surgical planning that could identify lesion location and plan the surgical path on 3D images, and automatic bone drilling control that would stop drilling when the bone was to be drilled-through...
December 2, 2016: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/27906525/the-clinical-utility-of-qsm-disease-diagnosis-medical-management-and-surgical-planning
#16
REVIEW
Sarah Eskreis-Winkler, Yan Zhang, Jingwei Zhang, Zhe Liu, Alexey Dimov, Ajay Gupta, Yi Wang
Quantitative susceptibility mapping (QSM) is an MR technique that depicts and quantifies magnetic susceptibility sources. Mapping iron, the dominant susceptibility source in the brain, has many important clinical applications. Herein, we review QSM applications in the diagnosis, medical management, and surgical treatment of disease. To assist in early disease diagnosis, QSM can identify elevated iron levels in the motor cortex of amyotrophic lateral sclerosis patients, in the substantia nigra of Parkinson's disease (PD) patients, in the globus pallidus, putamen, and caudate of Huntington's disease patients, and in the basal ganglia of Wilson's disease patients...
December 1, 2016: NMR in Biomedicine
https://www.readbyqxmd.com/read/27903115/aggressive-surgery-based-on-an-anatomical-subclassification-of-craniopharyngiomas
#17
Hiroki Morisako, Takeo Goto, Hiroyuki Goto, Christian Aisse Bohoun, Samantha Tamrakar, Kenji Ohata
OBJECTIVE Craniopharyngiomas remain a particularly formidable challenge in the neurosurgical field. Because these lesions involve the hypothalamus and ophthalmological systems, their resection is associated with either higher rates of mortality and recurrence or a lower rate of radical resection. The authors report the outcomes of aggressive surgeries based on an anatomical subclassification of craniopharyngiomas. METHODS Clinical and ophthalmological examinations, imaging studies, endocrinological studies, neuropsychological function, and surgical complications in all patients who had undergone microsurgical resection for craniopharyngioma at Osaka City University hospital between January 2000 and December 2014 were retrospectively reviewed through the medical records...
December 2016: Neurosurgical Focus
https://www.readbyqxmd.com/read/27861321/laser-interstitial-thermal-therapy-technology-physics-of-magnetic-resonance-imaging-thermometry-and-technical-considerations-for-proper-catheter-placement-during-magnetic-resonance-imaging-guided-laser-interstitial-thermal-therapy
#18
Nitesh V Patel, Matthew Mian, R Jason Stafford, Brian V Nahed, Jon T Willie, Robert E Gross, Shabbar F Danish
: Laser-induced thermal therapy has become a powerful tool in the neurosurgical armamentarium. The physics of laser therapy are complex, but a sound understanding of this topic is clinically relevant, as many centers have incorporated it into their treatment algorithm, and educated patients are demanding consideration of its use for their disease. Laser ablation has been used for a wide array of intracranial lesions. Laser catheter placement is guided by stereotactic planning; however, as the procedure has popularized, the number of ways in which the catheter can be inserted has also increased...
December 2016: Neurosurgery
https://www.readbyqxmd.com/read/27818327/an-educational-intervention-optimizes-the-utilization-of-arterial-blood-gases-across-intensive-care-units-from-different-specialties-a-quality-improvement-study
#19
Carlos D Martínez-Balzano, Paulo Oliveira, Michelle O'Rourke, Luanne Hills, Andrés F Sosa
BACKGROUND: Arterial blood gas (ABG) overutilization leads to increased costs, inefficient use of staff work-hours, patient discomfort and blood loss. We developed guidelines to optimize ABG utilization in the intensive care unit (ICU). METHODS: ABG utilization guidelines were implemented on all adult ICUs in our institution: three medical, two trauma-surgery, one cardiovascular and one neurosurgical ICU. While relying on pulse oximetry, we encouraged the utilization of ABGs after an acute respiratory event or for a rational clinical concern, and discouraged obtaining ABGs for routine surveillance, after planned changes of PEEP or FiO2 on the mechanical ventilator, for spontaneous breathing trials, or when a disorder was not suspected...
November 3, 2016: Chest
https://www.readbyqxmd.com/read/27817764/supplementary-educational-models-in-canadian-neurosurgery-residency-programs
#20
Won Hyung A Ryu, Sonny Chan, Garnette R Sutherland
BACKGROUND: The proposed implementation of work hour restrictions has presented a significant challenge of maintaining the quality of resident education and ensuring adequate hands-on experience that is essential for novice surgeons. To maintain the level of resident surgical competency, revision of the apprentice model of surgical education to include supplementary educational methods, such as laboratory and virtual reality (VR) simulations, have become frequent topics of discussion...
November 7, 2016: Canadian Journal of Neurological Sciences. le Journal Canadien des Sciences Neurologiques
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