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• W3210112601 abstract "Transcatheter mitral valve replacement (TMVR) is feasible for selected patients with severe mitral regurgitation (MR) who are poor candidates for valve surgery. Intermediate-term to long-term TMVR outcomes have not been reported.This study sought to evaluate the safety and effectiveness through 2-year follow-up of TMVR in high-surgical-risk patients with severe MR.The first 100 patients enrolled in the Expanded Clinical Study of the Tendyne Mitral Valve System, an open-label, nonrandomized, prospective study of transapical TMVR, were followed for 2 years.The patients (aged 74.7 ± 8.0 years, 69.0% male) had symptomatic (66.0% New York Heart Association [NYHA] functional class III or IV) grade 3+ or 4+ MR that was secondary or mixed in 89 (89.0%). Prostheses were successfully implanted in 97 (97.0%) patients. At 2 years, all-cause mortality was 39.0%; 17 (43.6%) of 39 deaths occurred during the first 90 days. Heart failure hospitalization (HFH) fell from 1.30 events per year preprocedure to 0.51 per year in the 2 years post-TMVR (P < 0.0001). At 2 years, 93.2% of surviving patients had no MR. No patient had >1+ MR. The improvement in symptoms at 1 year (88.5% NYHA functional class I or II) was sustained to 2 years (81.6% NYHA functional class I or II). Among survivors, the left ventricular ejection fraction was 45.6 ± 9.4% at baseline and 39.8 ± 9.5% at 2 years (P = 0.0012). Estimated right ventricular systolic pressure decreased from 47.6 ± 8.6 mm Hg to 32.5 ± 10.4 mm Hg (P < 0.005).In this study, the impact of TMVR on severity of MR, reduction in HFH rate, and improvement in symptoms was sustained through 2 years. All-cause mortality and the need for HFH was highest in the first 3 months postprocedure. (Expanded Clinical Study of the Tendyne Mitral Valve System; NCT02321514)." @default.
• W3210112601 created "2021-11-08" @default.
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• W3210112601 date "2021-11-01" @default.
• W3210112601 modified "2023-10-18" @default.
• W3210112601 title "2-Year Outcomes of Transcatheter Mitral Valve Replacement in Patients With Severe Symptomatic Mitral Regurgitation" @default.
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• W3210112601 doi "https://doi.org/10.1016/j.jacc.2021.08.060" @default.
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