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Flow diverter OR flow diverting OR flow diversion AND aneurysm

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https://www.readbyqxmd.com/read/28912285/predictors-of-incomplete-occlusion-following-pipeline-embolization-of-intracranial-aneurysms-is-it-less-effective-in-older-patients
#1
N Adeeb, J M Moore, M Wirtz, C J Griessenauer, P M Foreman, H Shallwani, R Gupta, A A Dmytriw, R Motiei-Langroudi, A Alturki, M R Harrigan, A H Siddiqui, E I Levy, A J Thomas, C S Ogilvy
BACKGROUND AND PURPOSE: Flow diversion with the Pipeline Embolization Device (PED) for the treatment of intracranial aneurysms is associated with a high rate of aneurysm occlusion. However, clinical and radiographic predictors of incomplete aneurysm occlusion are poorly defined. In this study, predictors of incomplete occlusion at last angiographic follow-up after PED treatment were assessed. MATERIALS AND METHODS: A retrospective analysis of consecutive aneurysms treated with the PED between 2009 and 2016, at 3 academic institutions in the United States, was performed...
September 14, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28891190/is-multiple-overlapping-uncovered-stents-technique-suitable-for-aortic-aneurysm-repair
#2
Siang Lin Yeow, Hwa Liang Leo
A computational fluid dynamic model to assess the impact of flow-diverter device on intra-aneurysmal flow in complex aortic aneurysm from the viewpoint of hemodynamics is presented. The aim of this study is to investigate the hemodynamic effects of an endovascular flow-diverter technique using multiple overlapping uncovered stents (MOUS) in the treatment of complex aortic aneurysm involving side branch. The placement of porous barrier such as MOUS across the aneurysm alters the blood flow pattern in the aneurysm sac...
September 11, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28882859/flow-diversion-with-low-profile-braided-stents-for-the-treatment-of-very-small-or-uncoilable-intracranial-aneurysms-at-or-distal-to-the-circle-of-willis
#3
K Aydin, M Barburoglu, S Sencer, M Berdikhojayev, B Coskun, S Akpek
BACKGROUND AND PURPOSE: The endovascular treatment of aneurysms located at or distal to the circle of Willis and not amenable to coiling remains a challenge. We report our experience with flow-diversion treatment using low-profile braided stents as a stent monotherapy procedure for treating distally located very small or uncoilable aneurysms. MATERIALS AND METHODS: We retrospectively reviewed our data bases to identify patients with aneurysms located at or distal to the circle of Willis who were treated with stent monotherapy using low-profile braided stents...
September 7, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28863286/flow-diversion-with-the-pipeline-embolization-device-for-patients-with-intracranial-aneurysms-and-antiplatelet-therapy-a-systematic-literature-review
#4
REVIEW
Pavlos Texakalidis, Kimon Bekelis, Elias Atallah, Stavropoula Tjoumakaris, Robert H Rosenwasser, Pascal Jabbour
Flow diversion with the Pipeline Embolization Device (PED) is reported as a safe and efficient treatment for patients with intracranial aneurysms; however, literature discussing the antiplatelet (APT) regimen used before and after the PED is limited. Our aim was to systematically review and summarize available data regarding the APT regimen and the platelet function test (PFT) that was used. We also sought to provide an overview of the aneurysm morphologies and adverse event rates associated with the PED use...
August 18, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28842742/in-vitro-contrast-agent-based-evaluation-of-the-influence-of-flow-diverter-size-and-position-on-intra-aneurysmal-flow-dynamics-using-syngo-iflow
#5
Giorgio Franco Maria Cattaneo, Andreas Ding, Tobias Jost, Désirée Ley, Ruben Mühl-Bennighaus, Umut Yilmaz, Heiko Körner, Wolfgang Reith, Andreas Simgen
PURPOSE: Treatment of intracranial aneurysm with flow-diverting devices has become widespread in recent years. Despite that, intra-aneurysmal flow changes are yet not fully understood and can lead to different complications. Our aim was an in vitro contrast-based evaluation of the influence of flow diverter size and position on intra-aneurysmal flow dynamics. METHODS: Flow-diverting devices with different sizes (diameters 4.0, 4.5, and 6.0 mm) were deployed in seven silicone aneurysm models at different positions relative to the aneurysm neck (proximal, central, distal)...
August 25, 2017: Neuroradiology
https://www.readbyqxmd.com/read/28838122/flow-diversion-for-the-treatment-of-an-unruptured-paraclinoid-carotid-artery-aneurysm
#6
Brian P Walcott, Christopher J Stapleton, Collin M Torok, Aman B Patel
No abstract text is available yet for this article.
August 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28838114/endovascular-treatment-of-large-and-giant-carotid-aneurysms-with-flow-diverter-stents-alone-or-in-combination-with-coils-a-multicenter-experience-and-long-term-follow-up
#7
Simone Peschillo, Alessandro Caporlingua, Maria Chiara Resta, Jo Peter Paul Peluso, Nicola Burdi, Nader Sourour, Francesco Diana, Giulio Guidetti, Frédéric Clarençon, Gijs Coenraad Bloemsma, Federico Di Maria, Massimo Donatelli, Maurizio Resta
BACKGROUND: Although flow diverters (FDs) have been widely accepted by neurointerventionists, their safety has yet to be fully defined. Stratification by aneurysm size and location is essential for correct evaluation of treatment outcomes and risks of flow diversion. OBJECTIVE: To compare neurological and anatomic outcomes and evaluate the risk of complications after endovascular treatment of large or giant internal carotid artery (ICA) aneurysms with FD/FDs alone or together with coil embolization...
August 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28832231/unruptured-intracranial-aneurysms-management-strategy-and-current-endovascular-treatment-options
#8
Laurent Pierot, Matthias Gawlitza, Sébastien Soize
Unruptured intracranial aneurysms (UIA) have a high prevalence (3.2%) and are increasingly diagnosed with modern imaging tools. The main risk of UIA is their rupture associated with intracranial bleeding with often severe clinical consequences. Areas covered: This review discusses the management strategy of UIAs, based on the large series of the literature (ISUIA, ATENA, UCAS, …), knowing that no randomized controlled trial is available to compare different strategies. The different endovascular treatments are described...
September 6, 2017: Expert Review of Neurotherapeutics
https://www.readbyqxmd.com/read/28826706/flow-diversion-and-outcomes-of-vertebral-fusiform-aneurysms-after-stent-only-treatment-a-hemodynamic-study
#9
Wenqiang Li, Jian Liu, Yisen Zhang, Kun Wang, Zhongbin Tian, Qianqian Zhang, Chuhan Jiang, Xinjian Yang, Yang Wang
BACKGROUND: The aim of this study was to determine the effectiveness of treating vertebral fusiform aneurysms (VFAs) only with stents. Using computational fluid dynamics, we evaluated the hemodynamic patterns of VFAs following stent-only treatment (SOT) and monitored hemodynamic changes in the side branches. METHODS: Between September 2014 and December 2015, we enrolled 10 consecutive patients with VFAs who underwent SOT. Successful aneurysm reconstruction is defined as perfect reconstruction of the parent artery and complete or nearly complete occlusion of the aneurysm...
August 4, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28808603/aneurysm-treatment-practice-patterns-for-newly-appointed-dual-trained-cerebrovascular-endovascular-neurosurgeons-comparison-of-open-surgical-to-neuroendovascular-procedures-in-the-first-2-years-of-academic-practice
#10
Bowen Jiang, Matthew T Bender, Bima Hasjim, Frank P K Hsu, Rafael J Tamargo, Judy Huang, Geoffrey P Colby, Alexander L Coon, Li-Mei Lin
BACKGROUND: The practice patterns of a hybrid open cerebrovascular/neuroendovascular (CVNV) neurosurgeon in early academic practice is unknown. METHODS: We performed a multi-institutional retrospective cohort study of patients with cerebral aneurysms that were treated within the first 24 months of the neurosurgeon's practice. RESULTS: A total of 533 aneurysms were treated by the three senior authors within the first 24 months of their academic practice...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28782689/flow-diverter-treatment-of-tandem-intracranial-aneurysms
#11
Seby John, Mark Bain, Russell Cerejo, Andrew Bauer, Thomas Masaryk, Muhammad S Hussain, Peter Rasmussen, Gabor Toth
OBJECTIVE: The application of flow diversion (FD) for treatment of multiple, tandem intracranial aneurysms has not been well studied. We sought to assess technical success, and clinical and imaging outcomes of FD treatment for tandem intracranial aneurysms. METHODS: Retrospective analysis of patients treated with FD for tandem intracranial aneurysms. RESULTS: Twenty female patients were included with a mean (± SD) age of 60 ±12 years. Only one patient was treated after subarachnoid hemorrhage...
August 3, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28712903/multimodality-treatment-of-posterior-inferior-cerebellar-artery-aneurysms
#12
Justin R Mascitelli, Kurt Yaeger, Daniel Wei, Christopher P Kellner, Thomas J Oxley, Reade A De Leacy, Johanna T Fifi, Aman B Patel, Thomas P Naidich, Joshua B Bederson, J Mocco
OBJECT: Posterior inferior cerebellar artery (PICA) aneurysms are heterogeneous, uncommon lesions that can be treated in many fashions. Many previous series have focused on a specific aneurysm subset or treatment paradigm. The aim of this study was to present a comprehensive approach for all PICA aneurysms and analyze outcomes by PICA location. METHODS: All PICA aneurysms treated from 2012 until present were reviewed retrospectively and classified by location. Angiographic and clinical outcome were assessed...
July 13, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28710081/use-of-a-next-generation-multi-durometer-long-guide-sheath-for-triaxial-access-in-flow-diversion-experience-in-95-consecutive-cases
#13
Li-Mei Lin, Matthew T Bender, Geoffrey P Colby, Narlin B Beaty, Bowen Jiang, Jessica K Campos, Judy Huang, Rafael J Tamargo, Alexander L Coon
BACKGROUND: Intracranial access techniques in modern neurointerventions have shifted towards more robust access platforms. The long guide sheath is one of the building blocks of triaxial systems used in intracranial embolizations. Here we present our experience with the AXS Infinity LS long sheath in the triaxial platform for the implantation of the Pipeline embolization device (PED). METHODS: We retrospectively identified patients who underwent PED Flex treatment with the AXS Infinity LS at a single institution...
July 14, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28692909/pipeline-embolization-of-posterior-communicating-artery-aneurysms-associated-with-a-fetal-origin-posterior-cerebral-artery
#14
Adam N Wallace, Yasha Kayan, Matthew J Austin, Josser E Delgado Almandoz, Mudassar Kamran, DeWitte T Cross, Christopher J Moran, Joshua W Osbun, Akash P Kansagra
BACKGROUND AND PURPOSE: Flow diversion may have advantages in the treatment of posterior communicating artery (PComA) aneurysms associated with a fetal origin posterior cerebral artery (PCA), which can be challenging to treat with conventional techniques. However, a PComA incorporated into the aneurysm may prevent or delay aneurysm occlusion. Also, coverage of a fetal origin PCA risks infarction of a large vascular territory. The purpose of this study was to examine the safety and effectiveness of using the Pipeline Embolization Device (PED) to treat PComA aneurysms associated with a fetal origin PCA...
September 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28611839/utilization-of-a-novel-multi-durometer-intracranial-distal-access-catheter-nuances-and-experience-in-110-consecutive-cases-of-aneurysm-flow-diversion
#15
Geoffrey P Colby, Li-Mei Lin, Risheng Xu, Narlin Beaty, Matthew T Bender, Bowen Jiang, Judy Huang, Rafael J Tamargo, Alexander L Coon
BACKGROUND: Coaxial catheter support systems provide a safe and stable foundation in endovascular treatment of intracranial aneurysms. Increasingly, robust distal intracranial support is sought during complex neurointerventions. The AXS Catalyst 5 distal access catheter (Cat5) is a new intracranial catheter designed for improved trackability and stability. We report the first experience using Cat5 for aneurysm treatment by flow diversion. METHODS: A single-center aneurysm database was reviewed for cases of aneurysm treatment with the Pipeline embolization device (PED) that utilized Cat5...
March 2017: Interventional Neurology
https://www.readbyqxmd.com/read/28611831/salvage-of-herniated-flow-diverters-using-stent-and-balloon-anchoring-techniques-a-technical-note
#16
Bharathi D Jagadeesan, Divyajot Sandhu, Kim Jae Hong, Sara Roshan Khanipour, Andrew W Grande, Ramachandra P Tummala
BACKGROUND: The pipeline embolization device (PED; Medtronic, MN, USA) can sometimes herniate into the aneurysmal sac in an unexpected manner during or shortly after its deployment due to device foreshortening. In this report, we describe 2 endovascular techniques, which can be used to reposition a herniated PED construct into a more favorable alignment. SUMMARY: In a 67-year-old patient who had an intraprocedural herniation of a PED device into a giant cavernous aneurysm, a stent anchor technique was used to reverse the herniation, reorient the PED construct, and achieve successful flow diversion...
March 2017: Interventional Neurology
https://www.readbyqxmd.com/read/28610970/internal-maxillary-artery-bypass-with-radial-artery-graft-treatment-of-giant-intracranial-aneurysms
#17
Long Wang, Shuaibin Lu, Hai Qian, Xiang'en Shi
BACKGROUND: Giant intracranial aneurysms (GIAs) can be approached via microsurgical and endovascular techniques. Use of flow diversion devices has yielded favorable outcomes, and indications for cerebral revascularization have dramatically decreased. OBJECTIVE: To evaluate the safety and validity of using internal maxillary artery (IMA) bypass with an interposed graft to treat GIAs. METHODS: During a 6-year period, high-flow IMA bypass procedures were performed in 32 patients with GIAs at our institute...
September 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28604187/in%C3%A2-vitro-digital-subtraction-angiographic-evaluation-of-flow-diverters-in-a-patient-specific-aneurysm
#18
Liang-Der Jou
Background The importance of both porosity and pore density of a flow diverter is well recognized in treatment of intracranial aneurysms; however, understanding of the effect of individual wire (wire number and size) is critical in improving device design and use. Methods A total of 10 multi-layered flow diverters with different wire numbers (32, 48, 56, and 72) and sizes (30, 35, and 40 µm) were implanted into identical patient-specific middle cerebral artery aneurysm models. Digital subtraction angiography was acquired at 30 f/s and X-ray signals at three selected regions of interest were compared to determine the amount of intra-aneurysmal flow...
June 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/28600012/flow-diversion-after-aneurysmal-subarachnoid-hemorrhage
#19
REVIEW
Sabareesh K Natarajan, Hussain Shallwani, Vernard S Fennell, Jeffrey S Beecher, Hakeem J Shakir, Jason M Davies, Kenneth V Snyder, Adnan H Siddiqui, Elad I Levy
Flow diversion after aneurysmal subarachnoid hemorrhage (SAH) is the last treatment option for aneurysm occlusion when other methods of aneurysm treatment cannot be used because of the need for dual antiplatelet therapy. The authors' general protocol for treatment selection after aneurysmal SAH is provided to share with readers our approach to securing the aneurysm before embarking flow diversion for primary treatment or delayed adjunctive treatment to primary coiling. The authors' experience with flow diversion after aneurysmal SAH, review of pertinent literature, and the future of flow diversion after aneurysmal SAH are discussed...
July 2017: Neurosurgery Clinics of North America
https://www.readbyqxmd.com/read/28598274/evaluation-of-ischemic-lesion-prevalence-after-endovascular-treatment-of-intracranial-aneurysms-as-documented-by-3-t-diffusion-weighted-imaging-a-2-year-single-center-cohort-study
#20
Christina Iosif, Jean-Christophe Lecomte, Eduardo Pedrolo-Silveira, George Mendes, Marie-Paule Boncoeur Martel, Suzana Saleme, Charbel Mounayer
OBJECTIVE Even though published data exist concerning the prevalence of ischemic lesions detected by diffusion-weighted imaging (DWI) following endovascular treatment of intracranial aneurysms, a single-center cross-evaluation of the different endovascular techniques has been lacking. The authors sought to prospectively evaluate the prevalence and clinical significance of ischemic lesions occurring after endovascular treatment of intracranial aneurysms and to compare the safety and effectiveness of a broad spectrum of currently accepted endovascular techniques in a single-center setting...
June 9, 2017: Journal of Neurosurgery
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