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https://www.readbyqxmd.com/read/28791434/progressive-occlusion-of-small-saccular-aneurysms-incompletely-occluded-after-stent-assisted-coil-embolization-analysis-of-related-factors-and-long-term-outcomes
#1
Jeong Wook Lim, Jeongjun Lee, Young Dae Cho
PURPOSE: Incompletely occluded aneurysms after coil embolization are subject to recanalization but occasionally progress to a totally occluded state. Deployed stents may actually promote thrombosis of coiled aneurysms. We evaluated outcomes of small aneurysms (<10 mm) wherein saccular filling with contrast medium was evident after stent-assisted coiling, assessing factors implicated in subsequent progressive occlusion. METHODS: Between September 2012 and June 2016, a total of 463 intracranial aneurysms were treated by stent-assisted coil embolization...
August 8, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/28587530/endovascular-treatment-of-wide-neck-intracranial-bifurcation-aneurysms-with-y-configuration-double-neuroform%C3%A2-stents-assisted-coiling-technique-experience-in-a-single-center
#2
C Castaño, M Terceño, S Remollo, M R García-Sort, C Domínguez
Background Intracranial wide-neck aneurysms at the arterial bifurcations, especially in the aneurysms where the bifurcating branches emanate directly from the base of the aneurysm, have been particularly difficult on which to perform endovascular treatment. The 'Y'-configuration, double stent-assisted coil embolization is an option for the treatment of these difficult aneurysms, allowing the closure of the aneurysm, preserving the parent arteries. Material and methods In a nine-year period, 546 intracranial aneurysms in 493 patients were treated at our center by endovascular approach...
January 1, 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/28488070/cerebral-aneurysm-neck-diameter-is-an-independent-predictor-of-progressive-occlusion-after-stent-assisted-coiling
#3
Masahito Nakazaki, Tadashi Nonaka, Tatsufumi Nomura, Toshiyuki Onda, Yasuyuki Yonemasu, Akira Takahashi, Yuji Hashimoto, Osamu Honda, Shinichi Oka, Masanori Sasaki, Masahiko Daibo, Osamu Honmou
BACKGROUND: Some intracranial aneurysms treated by stent-assisted coiling (SAC) with incomplete occlusion undergo progressive occlusion (PO) during follow-up period. We analyzed the predictors for the occurrence of PO. METHODS: Among 74 cerebral aneurysms treated by SAC using the Enterprise or Neuroform stents from 2010 to 2015, we included 43 aneurysms with occlusion grade of neck remnant (NR, n = 36) or residual aneurysm (RA, n = 7) at the post-procedure. We defined PO as improvement in occlusion grade from RA to NR, or from NR or RA to complete occlusion on angiographic follow-up imaging at 6 months after the procedure...
July 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28316867/bench-top-comparison-of-physical-properties-of-4-commercially-available-self-expanding-intracranial-stents
#4
Su-Hee Cho, Won-Il Jo, Ye-Eun Jo, Ku Hyun Yang, Jung Cheol Park, Deok Hee Lee
PURPOSE: To better understand the performance of four commercially available neurovascular stents in intracranial aneurysm embolization, the stents were compared in terms of their basic morphological and mechanical properties. MATERIALS AND METHODS: Four different types of stents that are currently being used for cerebral aneurysm embolization were prepared (two stents per type). Two were laser-cut stents (Neuroform and Enterprise) and two were braided from a single nitinol wire (LEO and LVIS stents)...
March 2017: Neurointervention
https://www.readbyqxmd.com/read/28184346/the-interference-phenomenon-of-microcatheters-in-the-jailing-treatment-for-internal-carotid-artery-side-wall-aneurysms-with-an-open-cell-stent-system
#5
Minwook Yoo, Sung-Chul Jin, Seung-Hwan Kim, Byeong-Sam Choi, Hae Yu Kim, SungJun Lee, Sung Tae Kim, Hae Woong Jeong
OBJECTIVE: Excelsior XT-27 (Stryker Neurovascular, Fremont, CA, USA) or Rebar 27 (eV3 Covidien, Irvine, CA, USA) microcatheters have recently been used to overcome the limitations of the Renegade Hi-Flo microcatheter such as interference between two microcatheters (one for stent delivery and the other for cerebral aneurysm coiling) during the jailing technique. We evaluated differences and influential factors related to the interference phenomenon according to these two microcatheters group...
December 2016: Journal of Cerebrovascular and Endovascular Neurosurgery
https://www.readbyqxmd.com/read/28163518/double-barrel-y-configuration-stenting-for-flow-diversion-of-a-giant-recurrent-basilar-apex-aneurysm-with-the-pipeline-flex-embolization-device
#6
Dale Ding, Robert M Starke, Ben McGuinness, Stefan Brew
Giant basilar apex aneurysms are extremely challenging to successfully manage. The Pipeline Flex embolization device (PFED) is a new generation flow-diverting stent with a modified delivery system which allows resheathing of the stent after partial deployment. We describe a case of double-barrel Y-configuration stenting of a giant, recurrent basilar apex aneurysm using the PFED. A 73-year-old male was previously treated for an unruptured 11-mm basilar apex aneurysm with stent-assisted coiling using a Neuroform stent...
December 2016: Journal of Neurosciences in Rural Practice
https://www.readbyqxmd.com/read/27956518/use-of-self-expanding-stents-for-better-intracranial-flow-diverter-wall-apposition
#7
Anna Luisa Kühn, Ajay K Wakhloo, Matthew J Gounis, Peter Kan, Katyucia de Macedo Rodrigues, J Diego Lozano, Miklos G Marosfoi, Mary Perras, Christopher Brooks, Mary C Howk, David E Rex, Francesco Massari, Ajit S Puri
Background Flow diverter (FD) malapposition is associated with stroke-related complications. We document the use of self-expanding nitinol stents to remove/reduce the ledge of a FD deployed for aneurysm treatment. Methods We identified five patients who were treated with the Pipeline embolization device (PED) in conjunction with a Neuroform EZ stent for inadequate wall apposition of the ends of the FD at our institution between May 2014 and July 2015. Among other parameters, angiographic results, cone-beam computed tomography assessment of wall apposition and patient clinical outcome were evaluated...
April 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/27727400/hemodynamics-of-flow-diverters
#8
Ronak Dholakia, Chander Sadasivan, David J Fiorella, Henry H Woo, Baruch B Lieber
Cerebral aneurysms are pathological focal evaginations of the arterial wall at and around the junctions of the circle of Willis. Their tenuous walls predispose aneurysms to leak or rupture leading to hemorrhagic strokes with high morbidity and mortality rates. The endovascular treatment of cerebral aneurysms currently includes the implantation of fine-mesh stents, called flow diverters, within the parent artery bearing the aneurysm. By mitigating flow velocities within the aneurysmal sac, the devices preferentially induce thrombus formation in the aneurysm within hours to days...
February 1, 2017: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/27698229/stent-assisted-coiling-of-cerebrovascular-aneurysms-experience-at-a-large-tertiary-care-center-with-a-focus-on-predictors-of-recurrence
#9
Joseph R Linzey, Julius Griauzde, Zhe Guan, Nicole Bentley, Joseph J Gemmete, Neeraj Chaudhary, B Gregory Thompson, Aditya S Pandey
BACKGROUND: Stent-assisted coiling is commonly used to treat wide-necked and fusiform cerebral aneurysms. We evaluated our institutional experience with stent-assisted coiling of cerebral aneurysms to elucidate potential risk factors for recurrence. METHODS: A retrospective analysis of patients undergoing stent-assisted coiling of cerebral aneurysms from 2005 to 2012 resulted in 122 patients with 122 aneurysms. Demographic, peri-procedural, medical comorbidity, and follow-up data were collected...
November 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/27143205/-only-overlapping-stents-therapy-for-intracranial-vertebral-artery-dissection-aneurysms
#10
Jun Wang, Yongping Liang, Baomin Li, Xinfeng Liu, Sheng Li, Xiangyu Cao, Ruozhuo Liu
OBJECTIVE: To evaluate the feasibility, safety, clinical, and angiographic follow-up of only overlapping stents therapy for intracranial vertebral artery dissection aneurysms (VADA). METHODS: Eight consecutive patients (6 men, 2 women; mean age 46.8 years ranging from 34 to 62 years) with intracranial VADA admitted to Department of Neurology, Chinese People's Liberation Army General Hospital from June 2008 to June 2014 were retrospectively reviewed. All patients were diagnosed intracranial VADA by MRI or digital subtraction angiography (DSA)...
May 1, 2016: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/26903583/flow-diverter-therapy-with-the-pipeline-embolization-device-is-associated-with-an-elevated-rate-of-delayed-fluid-attenuated-inversion-recovery-lesions
#11
Mina G Safain, Marie Roguski, Robert S Heller, Adel M Malek
BACKGROUND AND PURPOSE: Flow diversion using the Pipeline Embolization Device is reported as a safe treatment of aneurysms. Complete aneurysm occlusion, however, occurs in a delayed fashion with initial persistent filling of the aneurysm dome. We hypothesized that this transflow across metallic struts may be associated with thromboembolic events. METHODS: Forty-one consecutive patients undergoing aneurysm treatment with the Pipeline Embolization Device and a comparison group of 78 Neuroform stent-mediated embolizations were studied...
March 2016: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/26653961/-short-term-effect-of-multiple-stents-parallel-placement-and-reconstruction-technique-for-the-treatment-of-giant-fusiform-vertebrobasilar-dissecting-aneurysms
#12
Baomin Li, Yongping Liang, Xinfeng Liu, Jun Wang, Sheng Li, Xiangyu Cao, Aili Ge, Huimin Feng
OBJECTIVE: To investigate the feasibility,safety and follow-up results of multiple stents parallel placement and reconstruction technique for treating giant vertebrobasilar dissecting aneurysms. METHODS: Five consecutive patients with giant fusiform vertebrobasilar dissecting aneurysms in Department of Neurology,Chinese People's Liberation Army General Hospital were retrospectively reviewed from April 2011 to October 2013. All patients were diagnosed vertebrobasilar dissecting aneurysms by MRI and digital subtraction angiography (DSA), the aneurysm size ranged 8...
August 1, 2015: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/26041097/stent-assisted-coil-embolization-of-aneurysms-with-small-parent-vessels-safety-and-efficacy-analysis
#13
Anna Luisa Kühn, Samuel Y Hou, Ajit S Puri, Christine F Silva, Matthew J Gounis, Ajay K Wakhloo
BACKGROUND: Stent-assisted coil embolization (SACE) is a viable therapeutic approach for wide-neck intracranial aneurysms. However, it can be technically challenging in small cerebral vessels (≤2 mm). OBJECTIVE: To present our experience with stents approved for SACE in aneurysms with small parent arteries. METHODS: All patients who underwent stent-assisted aneurysm treatment with either a Neuroform or an Enterprise stent device at our institution between June 2006 and October 2012 were identified...
June 2016: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/25978711/complication-analysis-in-nitinol-stent-assisted-embolization-of-486-intracranial-aneurysms
#14
Andrew Kelly Johnson, Stephan A Munich, Lee A Tan, Daniel Mark Heiferman, Kiffon Marie Keigher, Demetrius Klee Lopes
OBJECT: Stent-assisted embolization (SAE) has broadened the scope of endovascular cerebral aneurysm treatment. The risks associated with stent selection and configuration are poorly defined. In this study, the authors aimed to characterize the risk factors that contribute to complications in SAE of intracranial aneurysms. METHODS: Over a 10-year period, a single surgeon treated 486 aneurysms with SAE in which open-cell Neuroform or closed-cell Enterprise stents were used...
August 2015: Journal of Neurosurgery
https://www.readbyqxmd.com/read/25934772/hybrid-y-configured-dual-stent-assisted-coil-embolization-in-the-treatment-of-wide-necked-bifurcation-aneurysms
#15
Erol Akgul, Tugsan Balli, Erol H Aksungur
In Y-stenting, stabilization of the first stent may be problematic as in some cases it migrates during second stent insertion. This report evaluates the safety and effectiveness of the technique and presents the long-term results of hybrid, Y-configured, dual stent-assisted coil embolization in the treatment of wide-necked bifurcation aneurysms. We retrospectively evaluated the patients treated endovascularly due to cerebral aneurysms. Twenty patients treated with hybrid Y-stent-assisted coil embolization were enrolled in the study...
February 2015: Interventional Neuroradiology
https://www.readbyqxmd.com/read/25777137/crossing-y-stent-technique-with-dual-open-cell-stents-for-coiling-of-wide-necked-bifurcation-aneurysms
#16
Jun Kyeung Ko, In Ho Han, Won Ho Cho, Byung Kwan Choi, Seung Heon Cha, Chang Hwa Choi, Sang Weon Lee, Tae Hong Lee
OBJECTIVE: Double stenting in a Y-configuration is a promising therapeutic option for wide-necked cerebral aneurysms not amenable to reconstruction with a single stent. We retrospectively evaluated the efficacy and safety of the crossing Y-stent technique for coiling of wide-necked bifurcation aneurysms. METHODS: By collecting clinical and radiological data we evaluated from January 2007 through December 2013, 20 wide-necked bifurcation aneurysms. RESULTS: Twelve unruptured and eight ruptured aneurysms in 20 patients were treated with crossing Y-stent-assisted coiling...
May 2015: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/25621980/balloon-remodeling-may-improve-angiographic-results-of-stent-assisted-coiling-of-unruptured-intracranial-aneurysms
#17
Jean-Christophe Gentric, Alessandra Biondi, Michel Piotin, Charbel Mounayer, Kyriakos Lobotesis, Alain Bonafé, Vincent Costalat
BACKGROUND: Endovascular treatment of wide-necked and complex aneurysms may require stent-assisted coiling, either as primary stenting or combined with the balloon remodeling technique (BRT). OBJECTIVE: To compare the angiographic results and clinical outcomes of both strategies in the Safety and Efficacy of Neuroform for Treatment of intracranial Aneurysms (SENAT) registry. METHODS: SENAT was a prospective, multicenter registry that allowed BRT in conjunction with stenting and coiling with bare platinum coils...
April 2015: Neurosurgery
https://www.readbyqxmd.com/read/25352581/clinical-and-angiographic-outcomes-after-stent-assisted-coiling-of-cerebral-aneurysms-with-enterprise-and-neuroform-stents-a-comparative-analysis-of-the-literature
#18
REVIEW
Brent King, Sasha Vaziri, Amit Singla, Kyle M Fargen, J Mocco
INTRODUCTION: The most widely used intracranial stents for stent-assisted coiling are Neuroform (NEU) and Enterprise stents (ENT). This study compares published outcomes between the ENT and NEU coil-assist systems and comments on the published safety and efficacy of stent-assisted coiling in general. METHODS: A literature search was performed through PubMed for all published series of ENT or NEU stent-assisted coiling of cerebral aneurysms from 2004 to 2014. All studies including 10 or more published cases of stent-assisted coiling with ENT or NEU were included...
December 2015: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/25168700/direct-comparison-of-neuroform-and-enterprise-stents-in-the-treatment-of-wide-necked-intracranial-aneurysms
#19
COMPARATIVE STUDY
C R Durst, P Khan, J Gaughen, J Patrie, R M Starke, P Conant, K C Liu, M E Jensen, A J Evans
AIM: To compare the complications and outcomes of Neuroform and Enterprise stents in the treatment of unruptured wide-necked aneurysms. MATERIALS AND METHODS: Under the auspices of the institutional review board, a review of a prospectively collected patient log identified 130 patients who underwent elective stent-assisted coil embolization of a wide-necked aneurysm, including 53 patients treated with an Enterprise stent and 77 patients treated with a Neuroform stent...
December 2014: Clinical Radiology
https://www.readbyqxmd.com/read/25050689/retreatment-of-recanalized-aneurysms-after-y-stent-assisted-coil-embolization-with-double-enterprise-stents-case-report-and-systematic-review-of-the-literature
#20
Kenichi Kono, Aki Shintani, Tomoaki Terada
It is necessary to consider possibility of recanalization and retreatment after coil embolization for cerebral aneurysms. There is concern that retreatment for recanalized aneurysms after Y-stent-assisted coil embolization may be difficult because of double stents, especially in Y-stents with double closed-cell stents owing to narrowed structures. However, no detailed reports of retreatment after Y-stent have been reported. Between July 2010 and June 2013, we treated four aneurysms with Y-stent-assisted coil embolization using Enterprise closed-cell stents...
2014: Turkish Neurosurgery
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