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https://www.readbyqxmd.com/read/28280103/association-of-genetic-variant-and-platelet-function-in-patients-undergoing-neuroendovascular-stenting
#1
Xin-Gang Li, Ning Ma, Shu-Sen Sun, Zhe Xu, Wei Li, Yong-Jun Wang, Xin Yang, Zhong-Rong Miao, Zhi-Gang Zhao
INTRODUCTION: The risk of recurrent ischaemic events is related to platelet function, which is often assessed by thromboelastography (TEG). TEG has high interindividual variability. OBJECTIVE: To identify causal variants associated with TEG parameters in patients who receive aspirin and clopidogrel after intra- or extracranial stenting. METHODS: Patients who underwent stenting for extracranial or intracranial stenosis (70-99%) were recruited into the study...
March 9, 2017: Postgraduate Medical Journal
https://www.readbyqxmd.com/read/28270000/retrograde-semi-retrieval-technique-for-combined-stentriever-plus-aspiration-thrombectomy-in-acute-ischemic-stroke
#2
Ming Wei, Zhiqiang Wei, Xin Li, Hong Li
The endovascular treatment of acute ischemic stroke has become a standard procedure. The combination of multiple neuroendovascular devices provides more possibilities for the improvement of the thrombectomy technique. We describe a modified retrieval technique using a distal intracranial catheter (DIC) for the semi-retrieval of stentriever during the thrombectomy procedure. The retrograde semi-retrieval technique involves completely unfolding the stent retriever by pulling a Navien catheter and the partial re-sheath of a retrievable stent forming a tapered configuration by pushing the Navien catheter, which results in the thrombi being embedded into the strut, securing the clot within the stent and there being a shorter distance for the clot to travel...
January 1, 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/28246277/ischemic-stroke-after-treatment-of-intraprocedural-thrombosis-during-stent-assisted-coiling-and-flow-diversion
#3
Nimer Adeeb, Christoph J Griessenauer, Justin M Moore, Paul M Foreman, Hussain Shallwani, Rouzbeh Motiei-Langroudi, Raghav Gupta, Carlos E Baccin, Abdulrahman Alturki, Mark R Harrigan, Adnan H Siddiqui, Elad I Levy, Christopher S Ogilvy, Ajith J Thomas
BACKGROUND AND PURPOSE: Intraprocedural thrombosis poses a formidable challenge during neuroendovascular procedures because the risks of aggressive thromboembolic treatment must be balanced against the risk of postprocedural hemorrhage. The aim of this study was to identify predictors of ischemic stroke after intraprocedural thrombosis after stent-assisted coiling and pipeline embolization device placement. METHODS: A retrospective analysis of intracranial aneurysms treated with stent-assisted coiling or pipeline embolization device placement between 2007 and 2016 at 4 major academic institutions was performed to identify procedures that were complicated by intraprocedural thrombosis...
February 28, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28243352/safety-and-efficacy-of-intensified-antiplatelet-therapy-in-patients-undergoing-neuroendovascular-procedures
#4
Senka Runjaic, Jerah D Nordeen, Matthew W Soto-Arenall, Gretchen S Johns, David Miller, Benjamin Brown, William D Freeman
INTRODUCTION: The purpose of this study was to evaluate safety and efficacy of intensified antiplatelet therapy guided by VerifyNow assay P2Y12 reaction unit (PRU) reported values in patients undergoing neuroendovascular procedures. METHODS: An observational, retrospective review was conducted at a single academic tertiary referral center and comprehensive stroke center from December 1, 2012, to August 31, 2014. The primary objective was to determine the prevalence of thromboembolic complications stratified by preprocedural PRU values...
January 2017: Journal of Vascular and Interventional Neurology
https://www.readbyqxmd.com/read/28178166/headache-improvement-after-intracranial-endovascular-procedures-in-chinese-patients-with-unruptured-intracranial-aneurysm-a-prospective-observational-study
#5
Linjing Zhang, Yunxia Wang, Qingkui Zhang, Wei Ge, Xiancong Wu, Hai Di, Jun Wang, Xiangyu Cao, Baomin Li, Ruozhuo Liu, Shengyuan Yu
The aim of this study was to investigate whether there is a long-term improvement in headache of patients with unruptured intracranial aneurysms (UIAs) treated with intracranial endovascular procedures.Using a prospective design, consecutive patients with UIAs with neuroendovascular treatment from January 2014 to December 2014 were asked to participate. Headache outcomes were established before aneurysm treatment and for 6 months following treatment. Factors associated with different headache outcomes were investigated...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28175337/neuroendovascular-surgery-for-acute-ischemic-stroke-all-patients-all-the-time
#6
Ashish Sonig, Elad I Levy
No abstract text is available yet for this article.
August 1, 2016: Neurosurgery
https://www.readbyqxmd.com/read/28144775/clinical-and-angioarchitectural-factors-influencing-the-endovascular-approach-to-galenic-dural-arteriovenous-fistulas-in-adults-case-series-and-review-of-the-literature
#7
José E Cohen, John Moshe Gomori, Gustavo Rajz, Iddo Paldor, Samuel Moscovici, Eyal Itshayek
BACKGROUND: Galenic dural arteriovenous fistulas (DAVF) are rare; however, they are the most frequent type of DAVF to manifest aggressive clinical behavior and usually represent a diagnostic and therapeutic challenge for clinicians. METHODS: We retrospectively reviewed clinical and imaging data of patients managed with neuroendovascular techniques for the treatment of galenic DAVFs from 2000 to 2016. We searched the 2000-2016 English-language literature for papers discussing neuroendovascular management of galenic DAVFs, with or without companion surgical procedures...
January 31, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28116837/bacterial-nanocellulose-magnetically-functionalized-for-neuro-endovascular-treatment
#8
Mónica Echeverry-Rendon, Lisa M Reece, Fernando Pastrana, Sandra L Arias, Akshath R Shetty, Juan Jose Pavón, Jean Paul Allain
Current treatments for brain aneurysms are invasive, traumatic, and not suitable in most patients with increased risks. A new alternative method is using scaffold stents to create a local and focal attraction force of cells for an in situ reconstruction of the tunica media. For this purpose, a nanostructured bioactive coating is designed to render an asymmetric region of the stent scaffold magnetic and biomimetic, which utilizes bacterial nanocellulose (BNC) as a platform for both magnetic and cell attraction as well as proliferation...
January 24, 2017: Macromolecular Bioscience
https://www.readbyqxmd.com/read/28029187/off-label-uses-for-flow-diversion-in-intracranial-aneurysm-management
#9
Fawaz Al-Mufti, Krishna Amuluru, Gomez Francisco, Vincent Dodson, Mohammad El-Ghanem, Charles J Prestigiacomo, Chirag D Gandhi
Treatment of complex aneurysms using microsurgical and other conventional neuroendovascular techniques remains challenging. As a result, stent- and balloon-assisted coiling are instead performed to treat morphologically complex aneurysms, which include giant, wide-necked, and fusiform aneurysms. While these techniques have had success in treating these complex aneurysms, recanalization rates associated with these techniques are still problematic. In the constant effort to improve the outcome of complex aneurysm treatment, flow-diverting stents (FDSs) have emerged in recent years as the preferred treatment...
December 28, 2016: Journal of Neuroimaging: Official Journal of the American Society of Neuroimaging
https://www.readbyqxmd.com/read/27991669/characteristics-of-headache-after-an-intracranial-endovascular-procedure-a-prospective-observational-study
#10
Linjing Zhang, Xiancong Wu, Hai Di, Tao Feng, Yunxia Wang, Jun Wang, Xiangyu Cao, Baomin Li, Ruozhuo Liu, Shengyuan Yu
BACKGROUND: Two editions of the International Classification of Headache Disorders (ICHD) diagnostic criteria for "Headache attributed to an intracranial endovascular procedure" have been published, in 2004 and 2013.(1,2) Despite studies that have suggested that the former is not very practical, the ICHD-3 beta did not contain major changes. Moreover, so far no consensus exists regarding characteristics of headache after intracranial endovascular procedure. Thus, there is a need for sound suggestions to improve the ICHD-3 beta diagnostic criteria...
December 19, 2016: Headache
https://www.readbyqxmd.com/read/27867466/a-training-paradigm-to-enhance-performance-and-safe-use-of-an-innovative-neuroendovascular-device
#11
Donald R Ricci, Thomas R Marotta, Howard A Riina, Martina Wan, Joost De Vries
Training has been important to facilitate the safe use of new devices designed to repair vascular structures. This paper outlines the generic elements of a training program for vascular devices and uses as an example the actual training requirements for a novel device developed for the treatment of bifurcation intracranial aneurysms. Critical elements of the program include awareness of the clinical problem, technical features of device, case selection, and use of a simulator. Formal proctoring, evaluation of the training, and recording the clinical outcomes complement these elements...
2016: Journal of Market Access & Health Policy
https://www.readbyqxmd.com/read/27821297/validity-assessment-of-grading-scales-predicting-complications-from-embolization-of-cerebral-arteriovenous-malformations
#12
Raghav Gupta, Nimer Adeeb, Justin M Moore, Rouzbeh Motiei-Langroudi, Christoph J Griessenauer, Apar S Patel, Christopher S Ogilvy, Ajith J Thomas
OBJECTIVE: Endovascular embolization, though initially approved as an adjunctive therapy for surgical excision of cerebral arteriovenous malformations (AVMs), has found extensive use in the management of these lesions. A number of systems have been proposed to stratify AVMs by the procedural risk of embolization, including the Buffalo score and AVM Neuroendovascular grade. An external validity assessment of these systems has not been performed. PATIENTS AND METHODS: A retrospective review of all patients who underwent embolization of cerebral AVMs at a single institution, between 2010 and 2016, was performed...
December 2016: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/27733961/simulator-based-angiography-and-endovascular-neurosurgery-curriculum-a-longitudinal-evaluation-of-performance-following-simulator-based-angiography-training
#13
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/27725522/treatment-result-in-the-initial-stage-of-kanazawa-mobile-embolectomy-team-for-acute-ischemic-stroke
#14
Naoyuki Uchiyama, Kouichi Misaki, Masanao Mohri, Tomoya Kamide, Yuichi Hirota, Ryo Higashi, Hisato Minamide, Yukihiko Kohda, Takashi Asahi, Katsuo Shoin, Masayuki Iwato, Daisuke Kita, Yoshitaka Hamada, Yuya Yoshida, Mitsutoshi Nakada
Five recent multicenter randomized controlled trials (RCTs) have clearly shown the superiority of mechanical thrombectomy in large vessel occlusion acute ischemic stroke compared to systemic thrombolysis. Although 14 hospitals in Ishikawa prefecture have uninterrupted availability of systemic thrombolysis, mechanical thrombectomy is not available at all of these hospitals. Therefore, we established a Kanazawa mobile embolectomy team (KMET), which could travel to these hospitals and perform the acute reperfusion therapy...
December 15, 2016: Neurologia Medico-chirurgica
https://www.readbyqxmd.com/read/27610122/consecutive-endovascular-treatment-of-20-ruptured-very-small-3-mm-anterior-communicating-artery-aneurysms
#15
Kaiz S Asif, Ahsan Sattar, Marc A Lazzaro, Brian-Fred Fitzsimmons, John R Lynch, Osama O Zaidat
BACKGROUND: Small aneurysms located at the anterior communicating artery carry significant procedural challenges due to a complex anatomy. Recent advances in endovascular technologies have expanded the use of coil embolization for small aneurysm treatment. However, limited reports describe their safety and efficacy profiles in very small anterior communicating artery aneurysms. OBJECTIVE: We sought to review and report the immediate and long-term clinical as well as radiographic outcomes of consecutive patients with ruptured very small anterior communicating artery aneurysms treated with current endovascular coil embolization techniques...
June 2016: Interventional Neurology
https://www.readbyqxmd.com/read/27596803/pediatric-neurointervention-collimation-on-radiation-exposure-associated-lifetime-excess-tumor-risk
#16
Karen Chen, Srinivasan Paramasivam, Alejandro Berenstein
BACKGROUND: Intracranial vascular malformations in children are being addressed through a variety of treatment modalities including open surgery, external beam radiation, and image-guided neuroendovascular procedures. These patients often receive multiple treatments and incur serial exposures to ionizing radiation which has been linked to tumor development in population-based data. OBJECTIVE: This study quantifies the effect of collimation on exposures from single procedures and over patient lifetimes to estimate excess risk of lifetime tumor development...
September 5, 2016: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/27540089/intra-arterial-versus-intravenous-abciximab-therapy-for-thromboembolic-complications-of-neuroendovascular-procedures-case-review-and-meta-analysis
#17
Akash P Kansagra, James D McEachern, Thomas P Madaelil, Adam N Wallace, DeWitte T Cross, Christopher J Moran, Colin P Derdeyn
BACKGROUND: Abciximab is used to treat thromboembolic complications of neuroendovascular procedures, but outcomes of treatment are not well defined. OBJECTIVE: To examine the angiographic and clinical outcomes based on route of abciximab administration and degree of vessel recanalization. MATERIALS AND METHODS: A prospectively maintained database of neuroendovascular procedures performed between January 2004 and May 2015 was retrospectively reviewed to identify cases with thromboembolic complications treated with abciximab...
February 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/27403216/primary-angioplasty-versus-stenting-for-endovascular-management-of-intracranial-atherosclerotic-disease-following-acute-ischemic-stroke
#18
Mark R Villwock, David J Padalino, Raghu Ramaswamy, Eric M Deshaies
BACKGROUND: The future of neuroendovascular treatment for intracranial atherosclerotic disease (ICAD) has been debated since the results of SAMMPRIS reflected poor outcomes following endovascular therapy. There is currently a large spectrum of current management strategies. We compared historical outcomes of patients with ICAD and stroke that were treated with angioplasty-alone versus stent placement. METHODS: We extracted a population from the Nationwide Inpatient Sample (NIS) (2005-2011) and the National Inpatient Sample (NIS) (2012) composed of patients with ICAD and infarction that were admitted nonelectively and received endovascular revascularization...
June 2016: Journal of Vascular and Interventional Neurology
https://www.readbyqxmd.com/read/27399366/neuroendovascular-surgery-for-acute-ischemic-stroke-all-patients-all-the-time
#19
Ashish Sonig, Elad I Levy
No abstract text is available yet for this article.
August 2016: Neurosurgery
https://www.readbyqxmd.com/read/27367359/direct-carotid-exposure-for-neuroendovascular-approaches
#20
Dong Seong Shin, Ali Yilmaz, Ayca Ozkul, Dong Kyu Yeo, Sun-Chul Hwang, Bum-Tae Kim
Objective The transfemoral approach is a common route for catheterization of the supra-aortic vessels in neuroendovascular therapy. However, in some cases, the patient's anatomy prevents transfemoral catheterization or distal access to the carotid s. In such cases, direct carotid exposure (DCE) for neuroendovascular approaches may be used to treat cerebrovascular diseases. Methods We present 11 cases in which we were unable to perform the distal approach and DCE was the preferred neuroendovascular treatment procedure...
November 2016: Journal of Neurological Surgery. Part A, Central European Neurosurgery
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