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https://www.readbyqxmd.com/read/29331948/lvis-blue-as-a-low-porosity-stent-and-coil-adjuvant
#1
Matthew J Koch, Christopher J Stapleton, Scott B Raymond, Susan Williams, Thabele M Leslie-Mazwi, James David Rabinov, Aman B Patel
INTRODUCTION: The LVIS Blue is an FDA-approved stent with 28% metallic coverage that is indicated for use in conjunction with coil embolization for the treatment of intracranial aneurysms. Given a porosity similar to approved flow diverters and higher than currently available intracranial stents, we sought to evaluate the effectiveness of this device for the treatment of intracranial aneurysms. METHODS: We performed an observational single-center study to evaluate initial occlusion and occlusion at 6-month follow-up for patients treated with the LVIS Blue in conjunction with coil embolization at our institution using the modified Raymond-Roy classification (mRRC), where mRRC 1 indicates complete embolization, mRRC 2 persistent opacification of the aneurysm neck, mRRC 3a filling of the aneurysm dome within coil interstices, and mRRC 3b filling of the aneurysm dome...
January 13, 2018: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29239685/in%C3%A2-vitro-angiographic-comparison-of-the-flow-diversion-performance-of-five-neurovascular-stents
#2
Ronak J Dholakia, Ari D Kappel, Andrew Pagano, Henry H Woo, Baruch B Lieber, David J Fiorella, Chander Sadasivan
Background and purpose Data differentiating flow diversion properties of commercially available low- and high-porosity stents are limited. This in vitro study applies angiographic analysis of intra-aneurysmal flow to compare the flow-diversion performance of five neurovascular devices in idealized sidewall and bifurcation aneurysm models. Methods Five commercial devices (Enterprise, Neuroform, LVIS, FRED, and Pipeline) were implanted in silicone sidewall and bifurcation aneurysm models under physiological average flow of blood analog fluid...
January 1, 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/29175829/safety-and-effectiveness-of-the-low-profile-visualized-intraluminal-support-lvis-and-lvis-jr-devices-in-the-endovascular-treatment-of-intracranial-aneurysms-results-of-the-trail-multicenter-observational-study
#3
Christina Iosif, Michel Piotin, Suzana Saleme, Xavier Barreau, Jacques Sedat, Yves Chau, Nader Sourour, Mohamed Aggour, Herve Brunel, Alain Bonafe, Paolo Machi, Carlos Riquelme, Vincent Costalat, Laurent Pierot, Raphael Blanc, Charbel Mounayer
BACKGROUND AND PURPOSE: To evaluate the safety and effectiveness of the low-profile braided intracranial stents called the Low Profile Visualized Intraluminal Support (LVIS) devices for stent-assisted coil embolization of wide-necked intracranial aneurysms. MATERIALS AND METHODS: This was a prospective, multicenter, observational study of unruptured and ruptured intracranial aneurysms treated with the LVIS devices. Imaging and clinical data were independently analyzed respectively by CoreLab and Clinical Event Committee...
November 24, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29160136/utility-of-bulging-technique-for-endovascular-treatment-of-small-and-wide-necked-aneurysms-with-a-low-profile-visualized-intraluminal-support-lvis-jr-device-a-case-report-and-review-of-the-literature
#4
Akihiro Inoue, Masahiko Tagawa, Shirabe Matsumoto, Masahiro Nishikawa, Kosuke Kusakabe, Hideaki Watanabe, Takeharu Kunieda
Small and broad-necked aneurysms are generally very difficult to treat using endovascular therapy. The arrival of the low-profile stent (e.g., Low-profile Visualized Intraluminal Support; LVIS) has enabled reconstructive treatment for these aneurysms. In addition, the bulging technique using LVIS is an effective and attractive technique for performing stent-assisted coiling to preserve parent arteries and achieve neck coverage. We report here a patient with a small and wide-necked ruptured basilar artery (BA) top aneurysm, in whom successful treatment was achieved by stent-assisted coiling with LVIS Jr...
January 1, 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/29146831/stent-assisted-coiling-of-cerebral-aneurysms-a-single-center-clinical-and-angiographic-analysis
#5
Jun Wang, Jan Vargas, Alejandro Spiotta, Imran Chaudry, Raymond D Turner, Jonathan Lena, Aquilla Turk
OBJECTIVE: This study retrospectively compared the clinical and angiographic outcomes of treating cerebral aneurysms with Neuroform (NEU), Enterprise (EP), and Low-profile Visualized Intraluminal Support (LVIS/LVIS Jr) stents. MATERIALS AND METHODS: We conducted a retrospective analysis of a procedural database. All aneurysm procedures using any of the three types of self-expanding nitinol stents (NEU, EP and LVIS/LVIS Jr) were included. Intra-procedure complications, post-procedure complications, and angiographic results (Raymond-Roy grade scale, RRGS) were analyzed retrospectively...
November 16, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29118794/safety-and-efficacy-of-low-profile-self-expandable-stents-for-treatment-of-intracranial-aneurysms-initial-and-midterm-results-a-systematic-review-and-meta-analysis
#6
Su-Yeon Park, Jae-Sang Oh, Hyuk-Jin Oh, Seok-Mann Yoon, Hack-Gun Bae
Low-profile stents seem to be associated with a higher incidence of thromboembolic events compared with preexisting stents. We conducted a systematic review of 11 eligible reports and a meta-analysis of 7 reports with respect to the clinical efficacy and safety of low-profile stents. There were 217 intracranial aneurysms reported; 22% were ruptured aneurysms. In all, 72% were treated using single stenting, 19% were treated using overlapping stenting, and 6% were treated using balloon angioplasty followed by stenting; 3% were used to assess the flow diverter effect in a dissecting aneurysm or were treated using unexpected subtotal coil packing...
October 2017: Interventional Neurology
https://www.readbyqxmd.com/read/29105602/a-new-low-profile-visualized-intraluminal-support-lvis-device-lvis-blue-laboratory-comparison-between-old-and-new-lvis
#7
Joonho Chung, Yoshikazu Matsuda, Jessica Nelson, Kiffon Keigher, Demetrius K Lopes
Objectives The Low-profile Visualized Intraluminal Support (LVIS) device is a flexible intracranial stent. The first generation of this system had significant challenges in consistently providing good wall apposition and aneurysm neck coverage. A new modified LVIS, LVIS Blue (Blue), has been developed to address these issues. The purpose of this study is to report a laboratory comparison of wall apposition and aneurysm neck coverage between the original LVIS and Blue. Methods In bench-top experiments, we noted the visual appearance of the devices and evaluated changes in stent cell angles, neck coverage surface area (%), and stent cell crossing profile for microcatheters using a fusiform aneurysm model...
January 2018: Neurological Research
https://www.readbyqxmd.com/read/28958925/comparison-of-recanalization-and-in-stent-stenosis-between-the-low-profile-visualized-intraluminal-support-stent-and-enterprise-stent-assisted-coiling-for-254-intracranial-aneurysms
#8
COMPARATIVE STUDY
Xin Feng, Zenghui Qian, Peng Liu, Baorui Zhang, Luyao Wang, Erkang Guo, Xiaolong Wen, Wenjuan Xu, Chuhan Jiang, Zhongxue Wu, Youxiang Li, Aihua Liu
OBJECTIVE: To compare the rates of recanalization and in-stent stenosis between the Enterprise (EP) and low-profile visualized intraluminal support (LVIS) stent deployments for intracranial aneurysms (IAs), and the factors associated therein. METHODS: Between June 2014 and July 2016, 142 patients with a total of 161 IAs were treated by LVIS stent-assisted coiling and 111 patients with a total of 142 IAs were treated by EP stent-assisted coiling at our institution...
January 2018: World Neurosurgery
https://www.readbyqxmd.com/read/28939583/a-comparison-between-the-new-low-profile-visualized-intraluminal-support-lvis-blue-stent-and-the-flow-redirection-endoluminal-device-fred-in-bench-top-and-cadaver-studies
#9
Yoshikazu Matsuda, Joonho Chung, Kiffon Keigher, Demetrius Lopes
OBJECT: The aim of this study is to demonstrate the differences between the new Low-profile Visualized Intraluminal Support (LVIS Blue) stenting device and the Flow Redirection Endoluminal Device (FRED) using a series of bench-top evaluations and optical coherence tomography (OCT) images in a cadaveric preparation of the basilar artery. METHODS: The first part of the evaluation was bench-top microscopic documentation of metal coverage for LVIS Blue and FRED stents...
September 22, 2017: Journal of Neurointerventional Surgery
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
#10
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/28675349/novel-solution-for-luminal-access-loss-into-the-double-layered-lvis-blue%C3%A2-construct
#11
Evgueni Kouznetsov, Thomas Haldis, Michael Manchak, Alexander Drofa
We described a novel solution for a challenging case of double-layered LVIS Blue™ (LB) stent construct retraction into a large cavernous aneurysm. The double-layered LB stent construct was used as a flow diverter for treatment of a large cavernous aneurysm. Our solution comprised a balloon angioplasty and placement of balloon-mounted cardiac-stent construct through the side wall of the LB construct, with eventual placement of a Pipeline Flex inside of the final conduit.
October 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/28662097/reconstructive-endovascular-treatment-of-vertebral-artery-dissecting-aneurysms-with-the-low-profile-visualized-intraluminal-support-lvis-device
#12
Chuan-Chuan Wang, Yi-Bin Fang, Ping Zhang, Xuan Zhu, Bo Hong, Yi Xu, Jian-Min Liu, Qing-Hai Huang
INTRODUCTION: The Low-profile Visualized Intraluminal Support (LVIS) device is a new generation of self-expanding braided stent recently introduced in China for stent assisted coiling of intracranial aneurysms. The aim of our study is to evaluate the feasibility, safety, and efficacy of the LVIS device in reconstructive treatment of vertebral artery dissecting aneurysms (VADAs). METHODS: We retrospectively reviewed the neurointerventional database of our institution from June 2014 to May 2016...
2017: PloS One
https://www.readbyqxmd.com/read/28611831/salvage-of-herniated-flow-diverters-using-stent-and-balloon-anchoring-techniques-a-technical-note
#13
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/28385886/preliminary-experience-with-stent-assisted-coiling-of-aneurysms-arising-from-small-2-5-mm-cerebral-vessels-using-the-low-profile-visualized-intraluminal-support-device
#14
C-C Wang, W Li, Z-Z Feng, B Hong, Y Xu, J-M Liu, Q-H Huang
BACKGROUND AND PURPOSE: The Low-Profile Visualized Intraluminal Support (LVIS) stent is a new device recently introduced for the treatment of wide-neck intracranial aneurysms. This single-center study presents the authors' preliminary experience using the LVIS stent to treat saccular aneurysms with parent arteries smaller than 2.5 mm. MATERIALS AND METHODS: Aneurysms with a LVIS stent used in a small parent vessel (<2.5 mm in diameter) between October 2014 and April 2016 were included...
April 6, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28359923/overlapped-stenting-combined-with-coiling-for-blood-blister-like-aneurysms-comparison-of-low-profile-visualized-intraluminal-support-lvis-stent-and-non-lvis-stent
#15
COMPARATIVE STUDY
Deyuan Zhu, Yibin Fang, Pengfei Yang, Ping Zhang, Lei Chen, Yi Xu, Bo Hong, Qinghai Huang, Jian-Min Liu
OBJECTIVE: To evaluate the safety and efficacy of overlapped stenting for blood blister-like aneurysms (BBAs) and to compare the outcomes between Low-profile Visualized Intraluminal Support (LVIS) and non-LVIS stents. METHODS: A retrospective review of the aneurysm database identified 37 patients with intracranial carotid artery BBAs treated by overlapped stenting in our institution from June 2013 to June 2016. The clinical characteristics and angiographic results were reviewed...
August 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28357169/low-profile-visualized-intraluminal-support-junior-device-for-the-treatment-of-intracranial-aneurysms
#16
Mihir Gupta, Vincent J Cheung, Peter Abraham, Arvin R Wali, David R Santiago-Dieppa, Brandon C Gabel, Abdulrahman Almansouri, J Scott Pannell, Alexander A Khalessi
OBJECTIVE: Early case series suggest that the recently introduced Low-profile Visualized Intraluminal Support Junior (LVIS Jr.) device (MicroVention-Terumo, Inc., Tustin, CA) may be used to treat wide-necked aneurysms that would otherwise require treatment with intrasaccular devices or open surgery. We report our single-center experience utilizing LVIS Jr. to treat intracranial aneurysms involving 1.8-2.5 mm parent arteries. METHODS: We retrospectively reviewed records of patients treated with the LVIS Jr...
February 17, 2017: Curēus
https://www.readbyqxmd.com/read/28333907/the-effect-of-placing-flow-diverting-stents-in-intracranial-collateral-arteries-of-miniature-pig
#17
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
https://www.readbyqxmd.com/read/28316867/bench-top-comparison-of-physical-properties-of-4-commercially-available-self-expanding-intracranial-stents
#18
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/28238872/endovascular-treatment-of-intracavernous-internal-carotid-aneurysm-secondary-to-pituitary-infection
#19
Ligen Shi, Mading Zhou, Shenbin Xu, Qun Wu, Wei Yan, Jianmin Zhang
BACKGROUND: Intracavernous internal carotid artery (ICICA) aneurysm secondary to pituitary infection is exceedingly rare. CASE DESCRIPTION: We report an unusual case of a 63-year-old man who presented with acute left blepharoptosis and imaging findings of a pituitary infection. Interestingly, sudden onset of right blepharoptosis occurred after anti-infective therapy for 10 days. Digital subtraction angiography revealed a right ICICA aneurysm. After 6 months of follow-up visits, enlargement of the ICICA aneurysm was observed, and the endovascular technique of a low-profile visualized intraluminal support stent combined with 5 detachable coils was successfully performed to treat the ICICA aneurysm, with preservation of the internal carotid artery...
May 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28087432/stenting-after-coiling-using-a-single-microcatheter-for-treatment-of-ruptured-intracranial-fusiform-aneurysms-with-parent-arteries-less-than-1-5-mm-in-diameter
#20
Jian Liu, Yisen Zhang, Yang Wang, Shiqing Mu, Xinjian Yang
BACKGROUND: Ruptured intracranial fusiform aneurysms involving small-diameter parent arteries are difficult to treat. Parent artery occlusion is a relatively simple and reliable treatment. However, occasionally, the parent arteries have to be retained. The arrival of the low-profile stent (LVIS Jr.) has made reconstructive endovascular treatment for fusiform aneurysms involving small-diameter parent arteries possible. CASE DESCRIPTION: This report describes an innovative method for stent-assisted coiling (stenting after coiling technique using only 1 microcatheter) and describes our initial experience and feasibility of this technique...
March 2017: World Neurosurgery
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