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Flow diverter stent

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https://www.readbyqxmd.com/read/28531340/in-reply-rerupture-of-a-blister-aneurysm-after-treatment-with-a-single-flow-diverting-stent
#1
Marcus D Mazur, Philipp Taussky, Joel D MacDonald, Min S Park
No abstract text is available yet for this article.
May 22, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28521024/pipeline-embolization-device-for-pericallosal-artery-aneurysms-a-retrospective-single-center-safety-and-efficacy-study
#2
Katyucia De Macedo Rodrigues, Anna Luisa Kühn, Takamitsu Tamura, Guilherme Dabus, Peter Kan, Miklos G Marosfoi, J Diego Lozano, Mary Perras, Christopher Brooks, Mary C Howk, Samuel Y Hou, David E Rex, Francesco Massari, Matthew J Gounis, Ajay K Wakhloo, Ajit S Puri
BACKGROUND: Pericallosal artery aneurysm treatment may be challenging using traditional endovascular techniques. OBJECTIVE: To demonstrate the feasibility, efficacy, and safety of endovascular treatment of pericallosal artery aneurysm using flow diverters. METHODS: We performed a retrospective review of our institutional database from July 2013 through July 2016 and identified 7 subjects with a pericallosal artery aneurysm treated with the Pipeline embolization device (ev3 Neurovascular, Medtronic, Dublin, Ireland) and at least 1 follow-up angiogram...
May 17, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28515570/association-between-hemodynamic-modifications-and-clinical-outcome-of-intracranial-aneurysms-treated-using-flow-diverters
#3
Nikhil Paliwal, Robert J Damiano, Jason M Davies, Adnan H Siddiqui, Hui Meng
Treatment of intracranial aneurysms (IAs) has been revolutionized by the advent of endovascular Flow Diverters (FDs), which disrupt blood flow within the aneurysm to induce pro-thrombotic conditions, and serves as a scaffold for endothelial ingrowth and arterial remodeling. Despite good clinical success of FDs, complications like incomplete occlusion and post-treatment rupture leading to subarachnoid hemorrhage have been reported. In silico computational fluid dynamic analysis of the pre- and post-treated geometries of IA patients can shed light on the contrasting blood hemodynamics associated with different clinical outcomes...
February 11, 2017: Proceedings of SPIE
https://www.readbyqxmd.com/read/28506004/relationships-between-geometrical-parameters-and-mechanical-properties-for-a-helical-braided-flow-diverter-stent
#4
Takashi Suzuki, Hiroyuki Takao, Soichiro Fujimura, Chihebeddine Dahmani, Toshihiro Ishibashi, Hiroya Mamori, Naoya Fukushima, Yuichi Murayama, Makoto Yamamoto
BACKGROUND: Although flow diversion is a promising procedure for aneurysm treatment, the safety and efficacy of this strategy have not been sufficiently characterized. Both mechanical properties and flow reduction effects are important factors in the design of an optimal stent. OBJECTIVE: We aimed to clarify the contributions of strut size and pitch to the mechanical properties (radial stiffness and longitudinal flexibility) and geometric characteristics (porosity and pore density) related to flow reduction effects...
May 1, 2017: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/28499020/letter-rerupture-of-a-blister-aneurysm-after-treatment-with-a-single-flow-diverting-stent
#5
Leonardo B C Brasiliense, Christina M Walter, Mauricio J Avila, Travis M Dumont
No abstract text is available yet for this article.
May 11, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28488025/in-stent-stenosis-after-p64-flow-diverter-treatment
#6
M Aguilar Pérez, P Bhogal, E Henkes, O Ganslandt, H Bäzner, H Henkes
PURPOSE: There is limited information available on the incidence of in-stent stenosis (ISS) secondary to the use of flow-diverting stents in the intracranial vasculature. We sought to determine the incidence, severity, and clinical course of ISS on angiographic follow-up after treatment of saccular aneurysms with p64. METHODS: We retrospectively reviewed all patients who underwent treatment of a saccular (ruptured and unruptured) intracranial aneurysm with ≥1 p64 between 2011 and 2015...
May 9, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/28487360/ultrasound-for-the-evaluation-of-stenosis-after-flow-diversion
#7
Cameron M McDougall, Khurshid Khan, Maher Saqqur, Andrew Jack, Jeremy Rempel, Carol Derksen, Yin Xi, Michael Chow
BACKGROUND AND PURPOSE: Flow diversion is a relatively new strategy used to treat complex cerebral aneurysms. The optimal method for radiographic follow-up of patients treated with flow diverters has not been established. The rate and clinical implications of in-stent stenosis for these devices is unclear. We evaluate the use of transcranial Doppler ultrasound (TCD) for follow-up of in-stent stenosis. MATERIALS AND METHODS: We analyzed 28 patients treated with the Pipeline embolization device (PED) over the course of 42 months from January 2009 to June 2012...
May 9, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28477214/the-new-double-layer-micromesh-stent-roadsaver-%C3%A2-use-in-endovascular-treatment-of-supraaortic-and-visceral-artery-aneurysms-and-pseudoaneurysms
#8
Koray Akkan, Erhan Ilgit, Kutlay Karaman, Baran Onal, Murat Dökdök, Elif Ersöz, Abdullah Özer, Bijen Nazliel
PURPOSE: This study was designed to present our preliminary experience with the Roadsaver(®) double-layer micromesh (DLM) stent in the endovascular treatment of supra-aortic and visceral aneurysms and to utilize the flow-diverting effect of this new design in the treatment of these aneurysms. METHODS: DLM stent (Roadsaver(®), Terumo, Tokyo, Japan) was used in five patients (median age 61.8 years; three men) for treating arterial aneurysms (one common carotid artery, one vertebral artery V1 segment, one superior mesenteric artery, and two renal artery aneurysms)...
May 5, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28472526/glycoprotein-iib-iiia-inhibitors-in-prevention-and-rescue-treatment-of-thromboembolic-complications-during-endovascular-embolization-of-intracranial-aneurysms
#9
David Dornbos, Joel S Katz, Patrick Youssef, Ciarán J Powers, Shahid M Nimjee
Thromboembolic complications remain a major risk of endovascular neurosurgery during the treatment of intracranial aneurysms, despite the use of therapeutic heparinization and oral antiplatelet therapy when indicated. Glycoprotein (GP) IIb/IIIa inhibitors target a nonredundant pathway of platelet aggregation following adhesion and activation. Initially established and implemented in the cardiovascular arena, this drug class has provided a new tool in the neurovascular armamentarium as well. Numerous case reports, case series, and retrospective reviews have evaluated the safety and efficacy of abciximab, eptifibatide, and tirofiban in the treatment of acute thromboembolic complications during the endovascular treatment of intracranial aneurysms...
May 3, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28458385/recent-trends-in-neuro-endovascular-treatment-for-acute-ischemic-stroke-cerebral-aneurysms-carotid-stenosis-and-brain-arteriovenous-malformations
#10
Yuji Matsumaru, Eiichi Ishikawa, Tetsuya Yamamoto, Akira Matsumura
The efficacy of mechanical thrombectomy with stent retrievers for emergent large vessel occlusion has been proved by randomized trials. Mechanical thrombectomy is increasingly being adopted in Japan since stent retrievers were first approved in 2014. An urgent clinical task is to offer structured systems of care to provide this treatment in a timely fashion to all patients with emergent large vessel occlusion. Treatment with flow-diverting stents is currently a preferred treatment option worldwide for large and giant unruptured aneurysms...
May 1, 2017: Neurologia Medico-chirurgica
https://www.readbyqxmd.com/read/28452658/resolution-of-giant-basilar-artery-aneurysm-compression-and-reversal-of-sensorineural-hearing-loss-with-use-of-a-flow-diverter-case-report
#11
Laila M Mohammad, Alexander L Coon, Andrew P Carlson
The authors present an unusual case of a 15-year-old boy in whom sensorineural hearing loss and disequilibrium developed in the setting of a giant basilar artery aneurysm. This patient was treated with a flow-diverting stent and had complete resolution of his clinical symptoms including hearing loss. This case demonstrates the efficacy of flow diversion in select pediatric patients with posterior circulation aneurysms. The features that are thought to result in successful treatment are discussed.
April 28, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28450438/large-basilar-apex-aneurysms-treated-with-flow-diverter-stents
#12
V Da Ros, J Caroff, A Rouchaud, C Mihalea, L Ikka, J Moret, L Spelle
BACKGROUND AND PURPOSE: The treatment of wide-neck, large basilar apex aneurysms is challenging with either an endovascular or a surgical approach. The aim of the present study was to report our experience treating basilar apex aneurysms with flow-diverter stents and to evaluate their efficacy and safety profile in this specific anatomic condition. MATERIALS AND METHODS: We retrospectively analyzed data from all consecutive patients treated with flow-diverter stents at our institution between January 2011 and January 2015...
April 27, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28439656/-management-of-paraophthalmic-aneurysms-review-of-endovascular-treatment-strategies
#13
P Bhogal, M Aguilar Pérez, G Sauder, H Bäzner, O Ganslandt, H Henkes
BACKGROUND: Aneurysms of the cerebral vessels are relatively common and aneurysms of the ophthalmic segment of the internal carotid artery (ICA) represent approximately 10% of intradural aneurysms. ANATOMICAL ASPECTS: The ophthalmic segment of the ICA extends from the origin of the ophthalmic artery to the origin of the posterior communicating artery. Aneurysms can originate from the ophthalmic artery itself or directly from the ICA at a distance from the ophthalmic artery...
April 24, 2017: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/28438894/flow-diverter-treatment-of-intracranial-vertebral-artery-dissecting-pseudoaneurysms
#14
REVIEW
Russell Cerejo, Mark Bain, Nina Moore, Julian Hardman, Andrew Bauer, M Shazam Hussain, Thomas Masaryk, Peter Rasmussen, Gabor Toth
INTRODUCTION: Intracranial vertebral dissecting pseudoaneurysms are a rare, but increasingly recognized, cause of subarachnoid hemorrhage and ischemic stroke. The risks of aneurysm re-rupture and associated morbidity are high. The use of flow diverter stents for the treatment of these aneurysms has not been well studied. OBJECTIVE: To report our data and provide a summarized review of literature using flow diverter stents for the treatment of intracranial vertebral artery dissecting pseudoaneurysms...
April 24, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28438653/the-fate-of-side-branches-covered-by-flow-diverters-results-from-140-patients
#15
P Bhogal, O Ganslandt, H Bäzner, H Henkes, M Aguilar Perez
BACKGROUND: Flow diverter stents (FDS) are a recognised treatment option for intracranial aneurysms. There remain on-going concerns regarding the safety of FDS especially when it comes to the fate of covered side branches. We sought to report on the patency of side branches covered by FDS. METHODS: We retrospectively reviewed our database of prospectively collected information for all patients treated with FDS for an unruptured saccular aneurysm of the clinoid, ophthalmic, and terminating segments of the internal carotid artery between September 2009 and July 2016...
April 21, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28416090/clipping-in-awake-surgery-as-end-stage-in-a-complex-internal-carotid-artery-aneurysm-after-failure-of-multimodal-endovascular-and-extracranial-intracranial-bypass-treatment
#16
Delia Cannizzaro, Simone Peschillo, Cristina Mancarella, Biagia La Pira, Emanuela Rastelli, Emiliano Passacantilli, Antonio Santoro
BACKGROUND: Intracranial carotid artery aneurysm can be treated via microsurgical or endovascular techniques. The optimal planning is the result of the careful patient selection through clinical, anatomic, and angiographic analysis. CLINICAL PRESENTATION: We present a case of ruptured internal carotid artery (ICA) aneurysm that became a complex aneurysm after failure of multi-endovascular and surgery treatment. We describe complete trapping in awake craniotomy after failure of coiling, stenting, and bypassing...
April 13, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28391744/malignant-stroke-in-a-ticagrelor-non-responder-as-a-complication-following-aneurysm-treatment-with-the-pipeline-embolization-device%C3%A2
#17
Pegah Ghamasaee, Kevin Carr, Jeremiah Johnson, Ramesh Grandhi
The Pipeline Embolization Device™ (PED; Covidien Neurovascular Inc, Irvine, CA, USA) is a flow-diverting stent often used for the endovascular treatment of large or giant, wide-necked intracranial aneurysms of the internal carotid artery. Because of the inherent thrombogenicity of intracranial stents, dual-antiplatelet therapy is initiated after placement, which has been shown to decrease morbidity and mortality related to perioperative ischemic events in neurointerventional procedures. However, in some series, as much as 50% of patients demonstrate clopidogrel non-responsiveness...
January 1, 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/28383672/cerebral-revascularization-for-aneurysms-in-the-flow-diverter-era
#18
David C Straus, Harley Brito da Silva, Lynn McGrath, Michael R Levitt, Louis J Kim, Basavaraj V Ghodke, Jason K Barber, Laligam N Sekhar
BACKGROUND: Cerebral bypass has been an important tool in the treatment of complex intracranial aneurysms. The recent advent of flow-diverting stents (FDS) has expanded the capacity for endovascular arterial reconstruction. OBJECTIVE: We investigated how the advent of FDS has impacted the application and outcomes of cerebral bypass in the treatment of intracranial aneurysms. METHODS: We reviewed a consecutive series of cerebral bypasses during aneurysm surgery over the course of 10 years...
April 5, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28374616/treatment-of-barrow-type-b-carotid-cavernous-fistulas-with-flow-diverter-stent-pipeline
#19
Carlos Castaño, Sebastián Remollo, Rosa García-Sort, Carlos Domínguez, Mikel Terceño
Background Carotid cavernous fistulas (CCFs) Barrow type 'B' are dural shunts between the meningeal branches of the internal carotid artery and the cavernous sinus. The symptoms include vision deterioration, ophthalmoplegia with diplopia, exophthalmos, conjunctival injection, chemosis, ocular bruit, seizures, or neurological deficit. Endovascular treatment remains the gold standard for treatment through the transvenous or transarterial routes. The transvenous approaches have been proved to be the first option...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28333907/the-effect-of-placing-flow-diverting-stents-in-intracranial-collateral-arteries-of-miniature-pig
#20
Jiwei Wang, Yanan Ding, Qiuxia Wang, Yanan Wang, Shiqing Mu, Lixin Bi, Youxiang Li
BACKGROUND Flow-diverting stent (FDS) has been suggested as an effective intracranial aneurysm treatment. However, the effects of FDS on collateral branches of an aneurysm parent artery still remain unknown. Thus, the present study aimed to comprehensively evaluate the effects of placing a FDS in the intracranial collateral artery, using a miniature pig animal model. MATERIAL AND METHODS Ten healthy miniature pigs were included in the study: one pig was reserved as a control and the remaining nine pigs were placed in three experimental groups: FDS (i...
March 23, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
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