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Endovascular neurosurgery

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https://www.readbyqxmd.com/read/27813463/bypass-surgery-for-complex-middle-cerebral-artery-aneurysms-an-algorithmic-approach-to-revascularization
#1
Ali Tayebi Meybodi, Wendy Huang, Arnau Benet, Olivia Kola, Michael T Lawton
OBJECT Management of complex aneurysms of the middle cerebral artery (MCA) can be challenging. Lesions not amenable to endovascular techniques or direct clipping might require a bypass procedure with aneurysm obliteration. Various bypass techniques are available, but an algorithmic approach to classifying these lesions and determining the optimal bypass strategy has not been developed. The objective of this study was to propose a comprehensive and flexible algorithm based on MCA aneurysm location for selecting the best of multiple bypass options...
November 4, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27801398/-surgical-treatment-of-%C3%A2-mirror%C3%A2-aneurysms-of-the-internal-carotid-artery
#2
A O Sosnov, A V Dubovoi, V S Kiselev, D M Galaktionov, K S Ovsyannikov, A V Cherepanov, T K Istomina
BACKGROUND: A relatively high occurrence of "mirror" aneurysms of the anterior cerebral circulation in neurosurgical practice necessitates generalization of experience of using different surgical approaches. The choice of treatment is usually associated with the number of surgical stages. MATERIAL AND METHODS: Forty nine patients (19 males and 30 females) with mirror aneurysms of the anterior circulation underwent one- and two-step surgery at the Novosibirsk Federal Center of Neurosurgery in 2013-2015...
2016: Zhurnal Voprosy Neĭrokhirurgii Imeni N. N. Burdenko
https://www.readbyqxmd.com/read/27781115/unexpected-rupture-of-a-giant-lobulated-thrombotic-middle-cerebral-artery-aneurysm-and-emergency-surgical-treatment-with-thrombectomy-a-case-report-and-review-of-the-literature
#3
Vaner Koksal, Selim Kayaci
INTRODUCTION: The treatment of giant intracranial aneurysms is one of the most challenging cerebrovascular problems of neurosurgery. We report the rupture of a giant, lobulated, and almost completely thrombosed middle cerebral artery (MCA) aneurysm that is the ninth such report in the literature. We also investigated additional solutions used in the treatment of this patient. CASE PRESENTATION: A 58-year-old man had been admitted with headache 8 years previously (in 2005), and a giant MCA aneurysm was detected...
August 2016: Iranian Red Crescent Medical Journal
https://www.readbyqxmd.com/read/27766029/clinical-importance-of-the-middle-meningeal-artery-a-review-of-the-literature
#4
Jinlu Yu, Yunbao Guo, Baofeng Xu, Kan Xu
The middle meningeal artery (MMA) is a very important artery in neurosurgery. Many diseases, including dural arteriovenous fistula (DAVF), pseudoaneurysm, true aneurysm, traumatic arteriovenous fistula (AVF), moyamoya disease (MMD), recurrent chronic subdural hematoma (CSDH), migraine and meningioma, can involve the MMA. In these diseases, the lesions occur in either the MMA itself and treatment is necessary, or the MMA is used as the pathway to treat the lesions; therefore, the MMA is very important to the development and treatment of a variety of neurosurgical diseases...
2016: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/27733961/simulator-based-angiography-and-endovascular-neurosurgery-curriculum-a-longitudinal-evaluation-of-performance-following-simulator-based-angiography-training
#5
J Scott Pannell, David R Santiago-Dieppa, Arvin R Wali, Brian R Hirshman, Jeffrey A Steinberg, Vincent J Cheung, David Oveisi, Jon Hallstrom, Alexander A Khalessi
This study establishes performance metrics for angiography and neuroendovascular surgery procedures based on longitudinal improvement in individual trainees with differing levels of training and experience. Over the course of 30 days, five trainees performed 10 diagnostic angiograms, coiled 10 carotid terminus aneurysms in the setting of subarachnoid hemorrhage, and performed 10 left middle cerebral artery embolectomies on a Simbionix Angio Mentor™ simulator. All procedures were nonconsecutive. Total procedure time, fluoroscopy time, contrast dose, heart rate, blood pressures, medications administered, packing densities, the number of coils used, and the number of stent-retriever passes were recorded...
August 29, 2016: Curēus
https://www.readbyqxmd.com/read/27637647/epidemiologic-survey-of-dural-arteriovenous-fistulas-in-japan-clinical-frequency-and-present-status-of-treatment
#6
Naoya Kuwayama
BACKGROUND AND PURPOSE: There are few reports describing the prevalence of dural arteriovenous fistulas (dAVFs). We conducted a nation-wide retrograde survey on the clinical frequency and the status of treatment of dAVFs in Japan. METHODS: The first questionnaire was sent to 1,236 certified neurosurgery clinics in Japan to ask about the number of patients treated and the location of dAVF during the 5 years from 1998 to 2002. The second questionnaire was sent to 102 large-volume centers to ask the patients' ages, gender, location of the fistula, clinical presentation, treatment modalities, clinical and radiological results, and recurrence...
2016: Acta Neurochirurgica. Supplement
https://www.readbyqxmd.com/read/27637646/intracranial-and-spinal-dural-arterio-venous-fistula-davf-a-surgical-series-of-107-patients
#7
Alessandro Bertuccio, Chiara Robba, Giannantonio Spena, Pietro Primo Versari
INTRODUCTION: Dural arteriovenous fistulas (DAVFs) is a challenging condition in vascular neurosurgery. Development of new endovascular techniques has progressively modified treatment strategies; however, surgery is still considered a valid option of treatment of this pathology. MATERIALS AND METHODS: From a retrospective analysis of our database, we selected 107 patients who underwent surgical treatment for DAVFs. Patients were grouped into five categories according to the Borden and Cognard classifications...
2016: Acta Neurochirurgica. Supplement
https://www.readbyqxmd.com/read/27637644/advances-in-embolization-of-bavms
#8
L Renieri, N Limbucci, S Mangiafico
Brain AVMs are complex malformations, usually congenital, that need a deep understanding of anatomy and pathophysiology to be safely treated. Nowadays, embolization and radiosurgery are carried out more frequently due to their reduced invasiveness as compared to conventional neurosurgery. This paper aims to describe different and new endovascular approaches that allow the interventionalist to treat almost all the small AVMs and to reduce the nidus of the bigger ones in order to facilitate the surgical or radiosurgical intervention...
2016: Acta Neurochirurgica. Supplement
https://www.readbyqxmd.com/read/27593685/early-brain-injury-or-vasospasm-an-overview-of-common-mechanisms
#9
Basak Topkoru, Emrah Egemen, Ihsan Solaroglu, John Zhang
Subarachnoid hemorrhage (SAH) following rupture of an intracranial is associated with high mortality and morbidity. The late deterioration of the patient's neurological status or late cognitive dysfunctions even after secure clipping or decent endovascular treatment which is defined as delayed ischemic neurological deficits recently has been attributed to vasospasm. Due to the failure of specific anti-vasospastic agents in clinical trials researchers focused to explore new pathological mechanisms to be responsible for the delayed deterioration of the patients suffering from SAH...
September 5, 2016: Current Drug Targets
https://www.readbyqxmd.com/read/27502402/endovascular-treatment-of-previously-clipped-aneurysms-continued-evolution-of-hybrid-neurosurgery
#10
Bradley A Gross, Felipe C Albuquerque, Karam Moon, Andrew F Ducruet, Cameron G McDougall
BACKGROUND/OBJECTIVE: The optimal management of residual or recurrent clipped aneurysms is infrequently addressed in the literature. METHODS: We reviewed our endovascular database from January 1998 to May 2016 to identify patients with clipped aneurysms undergoing subsequent endovascular treatment, evaluating treatment approach, and clinical and angiographic outcomes. RESULTS: 60 patients underwent endovascular treatment of residual/recurrent clipped aneurysms; 7 rebled prior to endovascular therapy...
August 8, 2016: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/27495841/complications-in-endovascular-neurosurgery-critical-analysis-and-classification
#11
Vijay M Ravindra, Marcus D Mazur, Min S Park, Craig Kilburg, Christopher J Moran, Rulon L Hardman, William T Couldwell, Philipp Taussky
BACKGROUND: Precisely defining complications, which are used to measure overall quality, is necessary for critical review of delivery of care and quality improvement in endovascular neurosurgery, which lacks common definitions for complications. Furthermore, in endovascular interventions, events that may be labeled complications may not always negatively affect outcome. Our objective is to provide precise definitions for quality evaluation within endovascular neurosurgery. Thus, we propose an endovascular-specific classification system of complications based on our own patient series...
August 2, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27442408/first-case-of-endovascular-treatment-of-ruptured-internal-carotid-artery-aneurysm-using-stent-assisted-coiling-at-the-department-of-neurosurgery-in-skopje
#12
Venko Filipce, Aleksandar Caparoski, Zoran Milosevic
The management of intracranial aneurysms has changed dramatically in recent years. The science and technology advancement have resulted in new therapeutic options for their treatment. There is an increased interest among neurosurgeons to perform endovascular procedures for intracranial aneurysms. This has become a part of the neurosurgical residency in the US. We are presenting our first experience of ruptured aneurysm coiling using stent assisted technique.
2015: Prilozi (Makedonska Akademija Na Naukite i Umetnostite. Oddelenie za Medicinski Nauki)
https://www.readbyqxmd.com/read/27423199/efficacy-and-safety-of-treatment-of-ruptured-intracranial-aneurysms
#13
Alexander Hammer, Anahi Steiner, Ghassan Kerry, Gholamreza Ranaie, Eduard Yakubov, David Lichtenstern, Ingrid Baer, Hendrik Janssen, Christian M Hammer, Stefan Kunze, Hans-Herbert Steiner
OBJECTIVE: This prospective multicenter study was designed to compare the endovascular treatment results of ruptured aneurysms with the outcome of microsurgical clipping. METHODS: Six hundred and sixty one cases of ruptured intracranial aneurysms with consecutive subarachnoid hemorrhage between 1997 and 2014 of 2 large medical centers have been recorded and analyzed. Two hundred and seventy one cases of subarachnoid hemorrhage were subjected to endovascular treatment while 390 cases underwent microsurgical treatment...
July 13, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27419827/the-impact-of-body-habitus-on-outcomes-after-aneurysmal-subarachnoid-hemorrhage-a-nationwide-inpatient-sample-analysis
#14
Hormuzdiyar H Dasenbrock, Michael O Nguyen, Kai U Frerichs, Donovan Guttieres, William B Gormley, M Ali Aziz-Sultan, Rose Du
OBJECTIVE Although the prevalence of obesity is increasing rapidly both nationally and internationally, few studies have analyzed outcomes among obese patients undergoing cranial neurosurgery. The goal of this study, which used a nationwide data set, was to evaluate the association of both obesity and morbid obesity with treatment outcomes among patients with aneurysmal subarachnoid hemorrhage (SAH); in addition, the authors sought to analyze how postoperative complications for obese patients with SAH differ by the treatment modality used for aneurysm repair...
July 15, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27399432/153%C3%A2-significant-interhospital-variation-in-cranial-surgery-costs-using-the-nationwide-inpatient-sample-database
#15
Corinna Clio Zygourakis, Caterina Liu, Philip V Theodosopoulos, Michael T Lawton, Adams Dudley, Ralph Gonzales
INTRODUCTION: Although several articles have shown variation in rates and costs of spinal procedures, there is a paucity of similar research in cranial neurosurgery. Our goal is to determine which factors underlie the variation in cost for the 2 most common intracranial neurosurgical diagnosis-related groups (DRGs): 025 (craniotomy and endovascular intracranial procedure with a major complication or comorbidity [MCC]) and 027 (craniotomy and endovascular intracranial procedure without a complication or comorbidity [CC]/MCC)...
August 2016: Neurosurgery
https://www.readbyqxmd.com/read/27366977/landmark-papers-in-cerebrovascular-neurosurgery-2015
#16
REVIEW
Justin M Moore, Christoph J Griessenauer, Raghav Gupta, Nimer Adeeb, Apar S Patel, Christopher S Ogilvy, Ajith J Thomas
The management of cerebrovascular disease has advanced considerably in 2015. Five randomized control trials have firmly established the role of endovascular thrombectomy for ischemic strokes due to large vessel occlusion. The randomized trial of intraarterial treatment for acute ischemic stroke (MR CLEAN) (Berkhemer et al. NEJM 2015;372:11-20) was the first of a series on the topic. There was a total of 5 randomized controlled trials published showing benefit in terms of functional outcomes at 90days for mechanical thrombectomy including the Endovascular Therapy for Ischemic stroke with perfusion-imaging selection (EXTEND IA) (Campbell et al...
September 2016: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/27353553/endovascular-neurosurgery-personal-experience-and-future-perspectives
#17
REVIEW
Jean Raymond
BACKGROUND: From Luessenhop's early clinical experience until the present day, experimental methods have been introduced to make progress in endovascular neurosurgery. METHODS: A personal historical narrative, spanning the 1980s to 2010s, with a review of past opportunities, current problems, and future perspectives. RESULTS: Although the technology has significantly improved, our clinical culture remains a barrier to methodologically sound and safe innovative care and progress...
September 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27341046/stent-deployment-protocol-for-optimized-real-time-visualization-during-endovascular-neurosurgery
#18
Michael A Silva, Alfred P See, Hormuzdiyar H Dasenbrock, Ramsey Ashour, Priyank Khandelwal, Nirav J Patel, Kai U Frerichs, Mohammad A Aziz-Sultan
Successful application of endovascular neurosurgery depends on high-quality imaging to define the pathology and the devices as they are being deployed. This is especially challenging in the treatment of complex cases, particularly in proximity to the skull base or in patients who have undergone prior endovascular treatment. The authors sought to optimize real-time image guidance using a simple algorithm that can be applied to any existing fluoroscopy system. Exposure management (exposure level, pulse management) and image post-processing parameters (edge enhancement) were modified from traditional fluoroscopy to improve visualization of device position and material density during deployment...
June 24, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27177182/use-of-a-surgical-rehearsal-platform-and-improvement-in-aneurysm-clipping-measures-results-of-a-prospective-randomized-trial
#19
A Jessey Chugh, Jonathan R Pace, Justin Singer, Curtis Tatsuoka, Alan Hoffer, Warren R Selman, Nicholas C Bambakidis
OBJECTIVE The field of neurosurgery is constantly undergoing improvements and advances, both in technique and technology. Cerebrovascular neurosurgery is no exception, with endovascular treatments changing the treatment paradigm. Clipping of aneurysms is still necessary, however, and advances are still being made to improve patient outcomes within the microsurgical treatment of aneurysms. Surgical rehearsal platforms are surgical simulators that offer the opportunity to rehearse a procedure prior to entering the operative suite...
May 13, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27143206/-endovascular-reconstructive-treatment-of-vertebrobasilar-fusiform-aneurysms-by-multiple-overlapping-stents-with-or-without-coils
#20
Peng Qi, Daming Wang, Jiachun Liu, Lijun Wang, Jun Lu
OBJECTIVE: To explore the feasibility, safety and efficacy of endovascular reconstructive treatment by multiple overlapping stents with or without coils. METHODS: Totally 17 patients of vertebrobasilar fusiform aneurysms treated by multiple overlapping stents with or without coils between September 2011 and September 2015 in Department of Neurosurgery, Beijing Hospital were retrospectively reviewed. There were 15 male and 2 female patients with mean age of (47±13) years...
May 1, 2016: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
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