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Neuroendovascular

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https://www.readbyqxmd.com/read/28619972/staged-curative-treatment-of-a-complex-direct-carotid-cavernous-fistula-with-a-large-arterial-defect-and-an-oversized-internal-carotid-artery
#1
Matthew T Bender, Li-Mei Lin, Alexander L Coon, Geoffrey P Colby
This is a case of a high-flow, post-traumatic direct carotid-cavernous fistula with a widened arterial defect and a large-diameter internal carotid artery (ICA). The unique aspect of this case is the oversized ICA, >8mm in diameter, which is both a pathological and a therapeutic challenge, given the lack of available neuroendovascular devices for full vessel reconstruction. We present a planned two-stage embolisation paradigm for definitive treatment. Transarterial coil embolisation is performed as the first stage to disconnect the fistula and normalise flow in the ICA...
June 14, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28602632/brachial-ankle-pulse-wave-velocity-as-a-predictor-of-silent-cerebral-embolism-after-carotid-artery-stenting
#2
Tomoaki Murakami, Hajime Nakamura, Takeo Nishida, Tomohiko Ozaki, Katsunori Asai, Tomoki Kidani, Yoshinori Kadono, Manabu Sakaguchi, Toshiki Yoshimine, Haruhiko Kishima
BACKGROUND: In neuroendovascular therapy, the effect of arterial stiffness on postprocedural cerebral thromboembolism is unknown. In this observational study, we examined the relationship between cerebral thromboembolism after carotid artery stenting and arterial stiffness. METHODS: From April 2015 to February 2017, we enrolled consecutive patients undergoing scheduled carotid artery stenting in our institution. In all patients, preprocedural brachial-ankle pulse wave velocity was used to assess arterial stiffness, whereas the number of new cerebral ischemic lesions on diffusion-weighted magnetic resonance imaging was assessed after treatment...
June 8, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28578114/inside-vietnam-s-largest-neurosurgery-department
#3
Constantine L Karras, Huy Minh Tran, David Dornbos, Phong Nguyen, Shahid M Nimjee, Daniel M Prevedello, Ciarán J Powers
Cho Ray Hospital is the premier tertiary care center in Ho Chi Minh City, Vietnam's most populous city. The neurosurgical department was founded in 1958 and is currently one of the busiest in the world. Last year the department was responsible for over 10,000 neurosurgical operations, excluding neuroendovascular cases. Most of the elective cases are craniotomies for complex lesions such as aneurysms, AMV's, skull base tumors, gliomas and meningiomas. While the neurosurgeons within the department are technically gifted, doing more with less predominates as the mantra at Cho Ray Hospital...
May 31, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28565987/prolapse-of-the-pipeline-embolization-device-in-aneurysms-incidence-management-and-outcomes
#4
Visish M Srinivasan, Andrew P Carlson, Maxim Mokin, Jacob Cherian, Stephen R Chen, Ajit Puri, Peter Kan
OBJECTIVE The Pipeline embolization device (PED) is frequently used in the treatment of anterior circulation aneurysms, especially around the carotid siphon, with generally excellent results. However, the PED has its own unique technical challenges, including the occurrence of device foreshortening or migration leading to prolapse into the aneurysm. The authors sought to determine the incidence of this phenomenon, the rescue strategies, and outcomes. METHODS Four institutional databases of neuroendovascular procedures were reviewed for cases of intracranial aneurysms treated with PEDs...
June 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28492442/neuroendovascular-intervention-evolving-at-the-intersection-of-neurosurgery-and-neuro-ophthalmology
#5
Jason M Davies, L Nelson Hopkins
No abstract text is available yet for this article.
June 2017: Journal of Neuro-ophthalmology: the Official Journal of the North American Neuro-Ophthalmology Society
https://www.readbyqxmd.com/read/28481391/novel-hybrid-operating-table-for-neuroendovascular-treatment
#6
Park Jong-Hyun, Mun Jonghyeon, Shin Dong-Seung, Kim Bum-Tae
BACKGROUND: The integration of interventional and surgical techniques is requiring the development of a new working environment equipped for the needs of an interdisciplinary neurovascular team. However, conventional surgical and interventional tables have only a limited ability to provide for these needs. We have developed a concept mobile hybrid operating table that provides the ability for such a team to conduct both endovascular and surgical procedures in a single session. METHODS: We developed methods that provide surgeons with angiography-guided surgery techniques for use in a conventional operating room environment...
March 25, 2017: Turkish Neurosurgery
https://www.readbyqxmd.com/read/28449126/results-of-the-answer-trial-using-the-pulserider-for-the-treatment-of-broad-necked-bifurcation-aneurysms
#7
Alejandro M Spiotta, Colin P Derdeyn, Satoshi Tateshima, Jay Mocco, R Webster Crowley, Kenneth C Liu, Lee Jensen, Koji Ebersole, Alan Reeves, Demetrius K Lopes, Ricardo A Hanel, Eric Sauvageau, Gary Duckwiler, Adnan Siddiqui, Elad Levy, Ajit Puri, Lee Pride, Roberta Novakovic, M Imran Chaudry, Raymond D Turner, Aquilla S Turk
BACKGROUND: The safety and probable benefit of the PulseRider (Pulsar Vascular, Los Gatos, California) for the treatment of broad-necked, bifurcation aneurysms was studied in the context of the prospective, nonrandomized, single arm clinical trial-the Adjunctive Neurovascular Support of Wide-neck aneurysm Embolization and Reconstruction (ANSWER) Trial. OBJECTIVE: To present the results of the United States cases employing the PulseRider device as part of the ANSWER clinical trial...
April 25, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28431023/safety-and-efficacy-of-the-sofia-6f-plus-distal-access-reperfusion-catheter-in-the-endovascular-treatment-of-acute-ischemic-stroke
#8
Hussain Shallwani, Hakeem J Shakir, Leonardo Rangel-Castilla, Jason M Davies, Ashish Sonig, Mithun G Sattur, Bernard R Bendok, Kenneth V Snyder, Adnan H Siddiqui, Elad I Levy
BACKGROUND: Neuroendovascular intervention has become a key treatment option for acute ischemic stroke. The Sofia (6F) PLUS catheter was designed for neurovascular access for diagnostic or therapeutic interventions. OBJECTIVE: To report the first series describing use of the Sofia PLUS intermediate/distal access reperfusion catheter in the treatment of acute ischemic stroke. METHODS: In this retrospective study, 41 stroke cases were identified in which the catheter was utilized for thrombolysis/thrombectomy...
April 19, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28366062/initial-experience-with-a-multiple-parallel-guidewire-support-system-for-complex-tortuous-aortic-arch-navigation-and-great-vessel-catheterization-technical-note
#9
Leonardo Rangel-Castilla, Hakeem J Shakir, Adnan H Siddiqui
The ability to traverse an anatomically challenging and complex arch is paramount to the success of any neuroendovascular procedure. With age, the aortic arch becomes elongated, calcified, and less compliant. The authors present the initial experience with a multiple parallel guidewire system (ZigiWire Mode 3) for catheterization through a complex tortuous aortic arch to access extracranial vessels. The ZigiWire is an organized guidewire system that uses consecutive delivery of 3 small-diameter (0.014-inch) guidewires that are progressively advanced in parallel to secure support-wire access...
April 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28366056/expanding-the-treatment-window-for-ischemic-stroke-through-the-application-of-novel-system-based-technology
#10
REVIEW
Mohammad El-Ghanem, Fawaz Al-Mufti, Venkatraman Thulasi, Inder Paul Singh, Chirag Gandhi
Recent randomized controlled trials have demonstrated the superiority of endovascular treatment (ET) over medical management in the treatment of acute ischemic stroke patients with anterior circulation emergent large vessel occlusions (ELVOs). Due to such accumulating evidence, expanding ET has become of paramount importance. Advancements in modern technology have enabled the use of mobile stroke units, telestroke networks, mobile neuroendovascular teams, and smartphone applications that shorten the time window to treatment and, thus, make patients more amenable to ET...
April 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28280103/association-of-genetic-variant-and-platelet-function-in-patients-undergoing-neuroendovascular-stenting
#11
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
#12
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
#13
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...
April 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
#14
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
#15
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
#16
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
#17
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...
May 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28116837/bacterial-nanocellulose-magnetically-functionalized-for-neuro-endovascular-treatment
#18
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
#19
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
#20
COMPARATIVE STUDY
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...
March 2017: Headache
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