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https://www.readbyqxmd.com/read/28337480/intra-channel-stent-release-technique-for-fluoroless-endoscopic-ultrasound-guided-lumen-apposing-metal-stent-placement-changing-the-paradigm
#1
Andrea Anderloni, Fabia Attili, Silvia Carrara, Domenico Galasso, Milena Di Leo, Guido Costamagna, Alessandro Repici, Rastislav Kunda, Alberto Larghi
Background Recently, a novel lumen-apposing fully covered self-expanding metal stent (LA-FCSEMS) mounted on an electrocautery-enhanced delivery system has been developed to perform endoscopic ultrasound (EUS)-guided transluminal drainage. From early experience, however, release of the proximal flange of the stent has mostly been done using endoscopic view guidance to ensure proper positioning. Aim We describe a new technique that we have named the Intra-Channel Stent Release Technique (ICSRT) to perform stent placement under complete EUS control, without the use of either fluoroscopic or endoscopic views...
January 2017: Endoscopy International Open
https://www.readbyqxmd.com/read/28330015/contact-aspiration-versus-stent-retriever-front-line-for-recanalisation-in-acute-cerebral-infarction-the-aster-trial
#2
Bertrand Lapergue, Julien Labreuche, Michel Piotin
RATIONALE: Mechanical thrombectomy (MT) with a stent retriever (SR), in association with intravenous (IV) rtPA, is now the standard of care in anterior circulation ischemic stroke caused by large vessel occlusion (LVO). Favorable outcome is strongly associated with the successful reperfusion status. New techniques for MT such as contact aspiration (CA) seem promising to increase reperfusion status and clinical outcome in retrospective studies. We aim at ascertaining whether CA is more efficient than stent retriever as a front-line endovascular procedure...
March 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28328002/endovascular-treatment-of-middle-cerebral-artery-m2-occlusion-strokes-clinical-and-procedural-predictors-of-outcomes
#3
Maxim Mokin, Christopher T Primiani, Zeguang Ren, Peter Kan, Edward Duckworth, Raymond D Turner, Aquilla S Turk, Kyle M Fargen, Guilherme Dabus, Italo Linfante, Travis M Dumont, Leonardo B C Brasiliense, Hussain Shallwani, Kenneth V Snyder, Adnan H Siddiqui, Elad I Levy
BACKGROUND: Patients with strokes from M2 segment middle cerebral artery (MCA) occlusion have been underrepresented in recent randomized trials of endovascular therapy. OBJECTIVE: To better understand the clinical, imaging, and procedural predictors of successful recanalization and clinical outcomes in this population of patients. METHODS: We performed a multicenter retrospective analysis of consecutive patients with acute MCA M2 segment occlusion who underwent thrombectomy with stent retrievers or primary aspiration thrombectomy (including A Direct Aspiration First Pass Technique approach)...
March 10, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28319567/treatment-of-biliary-stricture-after-live-donor-liver-transplantation-with-combined-metal-and-plastic-stent-%C3%A4-nsertion-a-feasibility-and-safety-study
#4
Erkan Parlak, Aydin Seref Koksal, Ahmet Tarik Eminler, Bilal Toka, Mustafa Ihsan Uslan
BACKGROUND: Fully covered-self expandable metal stents (Fc-SEMSs) have a challenging use in the treatment of anastomosis strictures (ASs) after live donor liver transplantation (LDLT) because they can occlude secondary branch biliary ducts when placed above the biliary bifurcation. In this study we evaluated the technical feasibility and safety of combining Fc-SEMSs with plastic stent(s) inserted to the secondary branch biliary ducts for the treatment of ASs after LDLT. METHODS: The study group included 22 patients (12 men, aged 51±11 years) with anastomotic biliary stricture after LDLT...
March 18, 2017: Transplantation
https://www.readbyqxmd.com/read/28318956/carotid-endarterectomy-to-remove-retained-solitaire-stent-retriever-inside-carotid-stent-after-mechanical-thrombectomy
#5
Mary In-Ping Huang Cobb, Tony P Smith, Patrick A Brown, L Fernando Gonzalez, Ali R Zomorodi
BACKGROUND: Tandem occlusions of the internal carotid artery (ICA) and middle cerebral artery (MCA) occur in up to a third of patients with acute ischemic strokes undergoing endovascular mechanical thrombectomy. Understanding open neurosurgical management of associated complications with this procedure is important. CASE REPORT: A 67-year-old man with acute onset of left hemiparesis and a tandem right ICA and MCA occlusion. He underwent carotid stent angioplasty of a stenotic ICA, followed by attempted Solitaire stent retrieval of an MCA clot...
March 16, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28318953/mechanical-thrombectomy-in-wake-up-strokes-a-case-series-using-alberta-stroke-program-early-ct-score-aspects-for-patient-selection
#6
Angelos Aristeidis Konstas, Artin Minaeian, Ian B Ross
BACKGROUND: There is lack of published studies on mechanical thrombectomy with stent retrievers for wake-up stroke (WUS). OBJECTIVE: To report the outcomes of WUS patients with large vessel occlusions, selected for intervention based on Alberta Stroke Program Early CT Score (ASPECTS) and treated with stent retrievers or primary aspiration thrombectomy. METHODS: Data were collected retrospectively for each consecutive WUS patient undergoing mechanical thrombectomy with a stent retriever or primary aspiration catheter between February 2015 and September 2016...
March 15, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28316869/forced-arterial-suction-thrombectomy-using-distal-access-catheter-in-acute-ischemic-stroke
#7
Ho-Cheol Lee, Dong-Hun Kang, Yang-Ha Hwang, Yong-Sun Kim, Yong-Won Kim
Historical innovations in mechanical thrombectomy devices and strategies for ischemic stroke have resulted in improved angiographic outcomes and better clinical outcomes. Various devices have been used, but the two most common approaches are aspiration thrombectomy and stent-retrieval thrombectomy. Aspiration thrombectomy has advanced from the traditional Penumbra system to forced arterial suction thrombectomy and a direct aspiration first-pass technique. Newer generation aspiration catheters with flexible distal tips and a larger bore have demonstrated faster and better recanalization relative to older devices...
March 2017: Neurointervention
https://www.readbyqxmd.com/read/28304200/advance-an-effective-and-feasible-technique-in-acute-stroke-treatment
#8
Erdem Gurkas, Cetin Kursad Akpinar, Emrah Aytac
Background and purpose Different techniques regarding efficient utilization of thrombectomy devices have been reported. Here, we described a novel technique named ADVANCE that is based on advancing a distal access catheter over the stent retriever. In this study, we aimed to report our initial results with this novel thrombectomy technique. Methods and results Sixty-seven consecutive acute anterior circulation ischemic stroke patients (35 male, 32 female) between January 2015 and January 2016 who were treated by mechanical thrombectomy were included in this prospective study...
April 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/28283031/the-resonance%C3%A2-metallic-ureteric-stent-in-the-treatment-of-chronic-ureteric-obstruction-a-safety-and-efficacy-analysis-from-a-contemporary-clinical-series
#9
C Patel, D Loughran, R Jones, M Abdulmajed, I Shergill
BACKGROUND: We evaluate the efficacy and safety of metallic ureteric stenting using the Cook Resonance® stent in the treatment of chronic ureteric obstruction of benign and malignant aetiology. Published experience of using this stent in this context is limited. We add to the body of literature on this topic. METHODS: All patients who had a Resonance® metallic stent inserted between April 2009 and November 2014 in our institution were identified from a prospectively maintained stent-database...
March 10, 2017: BMC Urology
https://www.readbyqxmd.com/read/28281171/the-stent-patency-and-migration-rate-of-different-shaped-plastic-stents-in-bile-flow-phantom-model-and-in-vivo-animal-bile-duct-dilation-model
#10
Chang-Il Kwon, Gwangil Kim, Seok Jeong, Don Haeng Lee, Kyoung Ah Kim, Kwang Hyun Ko, Joo Young Cho, Sung Pyo Hong
BACKGROUND/AIM: In research and development of biliary plastic stents (PS), continuous efforts have been made to overcome short patency time and high rate of migration. The aim of this study was to evaluate the patency and migration rate of different PS shapes for a given period of time. METHODS: Using an in vitro bile phantom model, we compared the patency among different shapes of PS (three straight PS, four double-pigtail PS, and a new screw-shaped PS). We performed an analysis of the degree of luminal narrowing by light microscopic examination...
March 9, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28275555/endovascular-stroke-treatment-now-and-then-procedural-and-clinical-effectiveness-and-safety-of-different-mechanical-thrombectomy-techniques-over-time
#11
Niels von Gadow, Omid Nikoubashman, Jessica Freiherr, Frank Block, Arno Reich, Gunther Fesl, Martin Wiesmann
BACKGROUND: The most essential development in endovascular stroke treatment (EST) was the shift from intra-arterial thrombolysis to endovascular thrombectomy with dedicated thrombectomy devices, most notably the introduction of stent-retrievers. We evaluated procedural and clinical effectiveness and safety of different EST techniques over time. METHODS: We retrospectively analyzed EST cases that were treated by the same interventionalist before (n=36) and after (n=50) stent-retrievers were established as the treatment device of first choice...
February 2017: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/28271328/intraprocedural-thrombus-fragmentation-during-interventional-stroke-treatment-a-comparison-of-direct-thrombus-aspiration-and-stent-retriever-thrombectomy
#12
Christian Maegerlein, Sascha Prothmann, Kristin Elizabeth Lucia, Claus Zimmer, Benjamin Friedrich, Johannes Kaesmacher
PURPOSE: The aim of this study was to compare the rates of intraprocedural thrombus fragmentation between the exclusive thrombus aspiration technique (ADAPT) and the use of stent retrievers. MATERIALS AND METHODS: Cases with successful recanalization of the primary occlusion site (POS) with either of the techniques were analyzed (n = 36 ADAPT, n = 61 stent retriever). The primary endpoint was the evaluation of intraprocedural thrombus fragmentation before applying additional maneuvers to enhance reperfusion success...
March 7, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28270000/retrograde-semi-retrieval-technique-for-combined-stentriever-plus-aspiration-thrombectomy-in-acute-ischemic-stroke
#13
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/28264235/efficacy-of-balloon-guiding-catheter-for-mechanical-thrombectomy-in-patients-with-anterior-circulation-ischemic-stroke
#14
Jae-Sang Oh, Seok-Mann Yoon, Jai-Joon Shim, Jae-Won Doh, Hack-Gun Bae, Kyeong-Seok Lee
OBJECTIVE: To evaluate the efficacy of balloon guiding catheter (BGC) during thrombectomy in anterior circulation ischemic stroke. METHODS: Sixty-two patients with acute anterior circulation ischemic stroke were treated with thrombectomy using a Solitaire stent from 2011 to 2016. Patients were divided into the BGC group (n=24, 39%) and the non-BGC group (n=38, 61%). The number of retrievals, procedure time, thrombolysis in cerebral infarction (TICI) grade, presence of distal emboli, and clinical outcomes at 3 months were evaluated...
March 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28263932/open-embolectomy-of-large-vessel-occlusion-in-the-endovascular-era-results-of-a-12-year-single-center-experience
#15
Tetsuyoshi Horiuchi, Junpei Nitta, Yoshinari Miyaoka, Alhusain Nagm, Keiji Tsutsumi, Kiyoshi Ito, Kazuhiro Hongo
BACKGROUND: and Purpose. Mechanical endovascular embolectomy using stent retrievers has gained popularity for the treatment of large vessel occlusion in acute ischemic stroke. Open embolectomy as direct surgical treatment has been limited, likely due to a fear of technical difficulty, therapeutic time window and time consuming. However, open embolectomy resulted in a high complete recanalization rate with safety profile. METHODS: The authors retrospectively reviewed the clinical and radiographic records of patients who underwent open embolectomy for major artery occlusion at acute stage...
March 2, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28259594/eus-guided-gallbladder-drainage-in-patients-with-acute-cholecystitis-and-high-surgical-risk-using-an-electrocautery-enhanced-lumen-apposing-metal-stent-device
#16
Markus Dollhopf, Alberto Larghi, Uwe Will, Mihai Rimbaş, Andrea Anderloni, Andres Sanchez-Yague, Anthony Yuen Bun Teoh, Rastislav Kunda
BACKGROUND AND AIMS: In high-risk surgical patients, the treatment of choice of acute cholecystitis is percutaneous transhepatic gallbladder drainage (PTGBD). Recently, a novel endoscopic device containing a lumen-apposing metal stent with an electrocautery (ECE-LAMS) on the tip has been developed. METHODS: High-risk surgical patients with acute cholecystitis who underwent EUS-guided gallbladder drainage (EUS-GBD) with the novel device were retrospectively retrieved from 7 tertiary-care referral centers...
March 1, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28256418/high-resolution-magnetic-resonance-imaging-evidence-for-intracranial-vessel-wall-inflammation-following-endovascular-thrombectomy
#17
Yangchun Li, Tanya N Turan, Imran Chaudry, Alejandro M Spiotta, Aquilla S Turk, Raymond D Turner, Arindam Rano Chatterjee
Intracranial high-resolution vessel wall magnetic resonance imaging evidence of vessel wall inflammation is present following stent retriever manipulation but absent following aspiration thrombectomy. This is presented in a case of rotatory vertebral artery compression causing multiple posterior circulation infarctions requiring multiple separate aspiration and stent retriever thrombectomies.
February 27, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28251328/efficacy-and-safety-of-direct-aspiration-first-pass-technique-versus-stent-retriever-thrombectomy-in-acute-basilar-artery-occlusion-a-retrospective-single-center-experience
#18
Johannes C Gerber, Dirk Daubner, Daniel Kaiser, Kay Engellandt, Kevin Haedrich, Angela Mueller, Volker Puetz, Jennifer Linn, Andrij Abramyuk
INTRODUCTION: The study aimed to compare efficacy and safety of aspiration thrombectomy (AT) to stentriever thrombectomy (SRT) in patients with basilar artery (BA) occlusion (BAO). METHODS: We retrospectively included patients with the following characteristics: acute BAO or occlusion of the intracranial vertebral artery (ICVA) and endovascular therapy (EVT) with stentriever (SRT) or aspiration thrombectomy (AT). Additional extra- but not intracranial EVT and intravenous thrombolysis (IVT) were allowed...
March 1, 2017: Neuroradiology
https://www.readbyqxmd.com/read/28251327/leo-stent-for-endovascular-treatment-of-intracranial-aneurysms-very-long-term-results-in-50-patients-with-52-aneurysms-and-literature-review
#19
Boris Lubicz, Alexandre Kadou, Ricardo Morais, Benjamin Mine
INTRODUCTION: The Leo stent was the first retrievable stent for endovascular treatment of intracranial aneurysms (IAs). We report our experience with this device with emphasis on very long-term follow-up. METHODS: This study was approved by authors' ethical committee. A retrospective review of our prospectively maintained database identified all patients treated for a saccular IA with this stent in our institution. Technical issues and immediate and long-term outcomes (at least 12 months) were evaluated...
March 1, 2017: Neuroradiology
https://www.readbyqxmd.com/read/28249747/the-association-between-collateral-status-recanalization-and-long-term-outcome-in-stroke-patients-treated-with-stent-retrievers-are-there-indications-not-to-perform-thrombectomy-based-on-ct-angiography
#20
Hannes Nordmeyer, Nadine Webering, Rene Chapot, Jeffrie Hadisurya, Markus Heddier, Paul Stracke, Klaus Berger, Stefan Isenmann, Ralph Weber
BACKGROUND AND PURPOSE: To investigate the association between baseline pial collateral status on computed tomography angiography (CTA) with recanalization and functional outcome in patients with acute anterior circulation stroke treated with stent retriever thrombectomy. MATERIAL AND METHODS: Retrospective analysis of 87 patients from a prospective thrombectomy registry. Collateral status on CTA source images was categorized into good, moderate, and poor with the Tan and Miteff scores by two-blinded readers...
February 26, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
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