TY - BOOK AU - Asch, Federico M AU - Ben-Dor, Itsik AU - Craig, Paige AU - Garcia-Garcia, Hector M AU - Rogers, Toby AU - Ruiz, Daniel AU - Satler, Lowell F AU - Shults, Christian AU - Torguson, Rebecca AU - Waksman, Ron AU - Weissman, Gaby AU - Zhang, Cheng TI - Transcatheter Aortic Valve Replacement in Low-Risk Patients With Symptomatic Severe Bicuspid Aortic Valve Stenosis SN - 1936-8798 PY - 2020/// KW - *Aortic Valve Stenosis/su [Surgery] KW - *Aortic Valve/ab [Abnormalities] KW - *Heart Valve Diseases/co [Complications] KW - *Transcatheter Aortic Valve Replacement KW - Aged KW - Aortic Valve Stenosis/et [Etiology] KW - Aortic Valve Stenosis/mo [Mortality] KW - Aortic Valve Stenosis/pp [Physiopathology] KW - Aortic Valve/pp [Physiopathology] KW - Feasibility Studies KW - Female KW - Heart Valve Diseases/mo [Mortality] KW - Heart Valve Diseases/pp [Physiopathology] KW - Heart Valve Prosthesis KW - Hemodynamics KW - Humans KW - Male KW - Middle Aged KW - Prospective Studies KW - Prosthesis Design KW - Recovery of Function KW - Risk Assessment KW - Risk Factors KW - Severity of Illness Index KW - Transcatheter Aortic Valve Replacement/ae [Adverse Effects] KW - Transcatheter Aortic Valve Replacement/is [Instrumentation] KW - Transcatheter Aortic Valve Replacement/mo [Mortality] KW - Treatment Outcome KW - United States KW - MedStar Heart & Vascular Institute KW - Journal Article N1 - Available online through MWHC library: 2008 - present N2 - BACKGROUND: TAVR is approved for low-risk patients in the United States. However, patients with bicuspid AS were excluded from the randomized cohorts of the pivotal low-risk trials; CONCLUSIONS: TAVR appears to be safe in patients with bicuspid AS, with short length of hospital stay, zero mortality, and no disabling strokes at 30 days. Subclinical leaflet thrombosis was observed in a minority of patients at 30 days but did not appear to be associated with clinical events. Copyright (c) 2020. Published by Elsevier Inc; METHODS: The LRT (Low Risk TAVR) trial was an investigator-initiated, prospective, multicenter study and was the first and only U.S. Food and Drug Administration-approved investigational device exemption trial to evaluate the feasibility of TAVR with either balloon-expandable or self-expanding valves in low-risk patients with bicuspid AS. The primary endpoint was all-cause mortality at 30 days. Baseline and follow-up echocardiography and computed tomography to detect leaflet thickening were analyzed in an independent core laboratory; OBJECTIVES: The aim of this study was to evaluate clinical outcomes and transcatheter heart valve hemodynamic parameters after transcatheter aortic valve replacement (TAVR) in low-risk patients with bicuspid aortic stenosis (AS); RESULTS: Sixty-one low-risk patients with symptomatic, severe AS and bicuspid aortic valves (78.3% Sievers type 1 morphology) underwent TAVR at 6 centers from 2016 to 2019. The mean age was 68.6 years, and 42.6% were men. At 30 days, there was zero mortality and no disabling strokes. The rate of new permanent pacemaker implantation was 13.1%; just 1 patient had a moderate paravalvular leak at 30 days. Hypoattenuated leaflet thickening was observed in 10% of patients at 30 days UR - https://dx.doi.org/10.1016/j.jcin.2020.02.008 UR - https://dx.doi.org/10.1016/j.jcin.2020.02.008 ER -