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Severe Aortic Regurgitation Caused by Unicuspid Aortic Valve Based on Quadricuspid Aortic Valve 下载免费PDF全文
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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Robert C. Schutt Dimitrios Maragiannis Gopi Shah 《Methodist DeBakey Cardiovascular Journal》2015,11(3):196-Sep;11(3):196
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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 下载免费PDF全文
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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Evangelista A 《Current cardiology reports》2011,13(3):234-241
Bicuspid aortic valve (BAV) is the most common form of congenital heart disease, with frequent and premature occurrence of
cardiac events, dominated by significant valvular dysfunction. BAV has a high prevalence of aortic wall abnormalities such
as ascending aortic dilatation. Because more rapid aortic dilatation can occur, once the ascending aorta reaches 40 mm, annual
imaging with echocardiography or other imaging techniques is indicated. The most feared complication is aortic dissection.
However, the actual incidence of this complication is low (4%). Although limited data exist regarding prophylactic intervention,
it is suggested that elective surgical repair of BAV-associated aortic dilatation should be more aggressively recommended.
In patients with BAV, the decision to indicate surgical treatment in aortic diameters between 50 and 55 mm should be based
on patient age, body size, comorbidities, type of surgery, and the presence of additional risk factors. 相似文献
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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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经导管主动脉瓣置换经过几十年的发展,从2002年首次应用于人类后,现在已经取得了明显的进步,目前主要用于外科手术高风险的主动脉瓣狭窄患者,随着操作技巧和瓣膜系统的改进,未来可能会成为传统外科手术的替代方案. 相似文献
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经导管主动脉瓣膜置入术是近年来出现一种治疗主动脉瓣狭窄的新兴技术,可以通过微创的方法治疗心脏瓣膜病。主动脉瓣狭窄传统治疗需要外科手术换瓣治疗,尤其合并左心功能不全的老年患者风险很大,且有些患者存在手术禁忌证。经导管置换主动脉瓣会给患者带来巨大的利益,其主要优点是体现在微创、避免体外循环及输血、缩短住院时间等方面。 相似文献