共查询到20条相似文献,搜索用时 46 毫秒
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David A. Roy Ulrich Schaefer Victor Guetta David Hildick-Smith Helge Möllmann Nicholas Dumonteil Thomas Modine Johan Bosmans Anna Sonia Petronio Neil Moat Axel Linke Cesar Moris Didier Champagnac Radoslaw Parma Andrzej Ochala Diego Medvedofsky Tiffany Patterson Felix Woitek Marjan Jahangiri Jean-Claude Laborde Stephen J. Brecker 《Journal of the American College of Cardiology》2013
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Transcatheter Aortic Valve Replacement in Bicuspid Aortic Stenosis Using Lotus Valve System
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Albert W. Chan MD MSC FRCPC FACC FSCAI Daniel Wong MD MPH FRCSC Jahangir Charania MD FRCPC 《Catheterization and cardiovascular interventions》2017,90(1):157-163
Bicuspid aortic stenosis (BAS) has been excluded in clinical trials on transcatheter aortic valve replacement (TAVR) due to the presumed uneven expansion of the aortic prosthesis, leading to significant paravalvular regurgitation (PVR). There is no transcatheter heart valve (THV) commercially approved for treating BAS. The Lotus Valve System mitigates PVR by possessing an adaptive seal and being fully re‐positionable. The latter is also important in preventing embolization, as the location of prosthesis fixation in BAS could be variable due to the presence of less expandable raphe. We report our early experience with the Lotus Valve System in three consecutive TAVR for BAS. They all provide good clinical and hemodynamic results without significant PVR. We conclude that the use of Lotus Valve System for treating BAS is feasible and safe, and may have advantages over the previous generation TAVR systems. © 2016 Wiley Periodicals, Inc. 相似文献
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Severe Aortic Regurgitation Caused by Unicuspid Aortic Valve Based on Quadricuspid Aortic Valve
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Kumiko Dokuni M.D. Hidekazu Tanaka M.D. Ph.D. Yasuhide Mochizuki M.D. Kensuke Matsumoto M.D. Ph.D. Yutaka Okita M.D. Ph.D. Ken‐ichi Hirata M.D. Ph.D. 《Echocardiography (Mount Kisco, N.Y.)》2015,32(12):1889-1890
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LAURENT ROTEN M.D. STEFAN STORTECKY M.D. FLAVIO SCARCIA ALEXANDER KADNER M.D. HILDEGARD TANNER M.D. ETIENNE DELACRÉTAZ M.D. BERNHARD MEIER M.D. STEPHAN WINDECKER M.D. THIERRY CARREL M.D. PETER WENAWESER M.D. 《Journal of cardiovascular electrophysiology》2012,23(10):1115-1122
AV Conduction After TAVI and SAVR . Introduction: Atrioventricular conduction abnormalities (AVCA) may complicate transcatheter aortic valve implantation (TAVI) and surgical aortic valve replacement (SAVR). The aim of this study was to prospectively evaluate AVCA after TAVI and SAVR. Methods and Results: Among 50 patients undergoing TAVI and 25 patients undergoing SAVR a continuous 7‐day Holter electrocardiogram (ECG) was recorded after the procedure. ECGs during TAVI and 12‐lead ECGs before and 1 and 7 days after TAVI and SAVR were analyzed. At baseline, TAVI patients were older (mean 82.1 vs 75.4, P < 0.001), had a longer PR interval (median 200 milliseconds vs 175 milliseconds, P = 0.004) and broader QRS width (median 100 milliseconds vs 80 milliseconds, P = 0.007) than SAVR patients. New AVCA were observed among 29 TAVI patients (58%), mostly new left bundle branch block (76%). Predilatation induced new AVCA in 14 TAVI patients (28%). New AVCA resolved within 24 hours in 15 TAVI patients (30%), and persisted in 14 TAVI (28%) and 3 SAVR patients (12%, P = 0.12). Among patients with persistent QRS width <120 milliseconds during the first 24 hours after TAVI, QRS width remained stable during the remainder of the observation period. During Holter monitoring complete AV block was observed in 4 TAVI patients (8%) and 3 SAVR patients (12%; P = 0.68). Conclusions: Almost half of AVCA during TAVI are induced by predilatation, but half of them resolve within 24 hours. Persistent AVCA are more frequently observed after TAVI than SAVR. If QRS width is below 120 milliseconds the first day after TAVI, the risk of late AVCA seems low. (J Cardiovasc Electrophysiol, Vol. 23 pp. 1115‐1122, October 2012) 相似文献
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Alexander B. Willson Josep Rodès-Cabau David A. Wood Jonathon Leipsic Anson Cheung Stefan Toggweiler Ronald K. Binder Melanie Freeman Robert DeLarochellière Robert Moss Luis Nombela-Franco Eric Dumont Karolina Szummer Gregory P. Fontana Raj Makkar John G. Webb 《Journal of the American College of Cardiology》2012
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The echo-Doppler diagnosis of aortic valve perforation has seldom been made before. We describe a combination of findings in a patient with severe aortic regurgitation following endocarditis of a bicuspid aortic valve, which suggests the presence of aortic cusp perforation: (A) discontinuity of cusp contour in parasternal long-axis view; (B) emergence of aortic regurgitant jet through a cusp rather than between the two cusps; (C) fine flutter of a cusp, but not on the free apposed edges; (D) severe aortic regurgitation without flail cusp motion, following bacterial endocarditis. 相似文献
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