Abstract

Data concerning the clinical effect of the latest-generation self-expandable transcatheter heart valve (Evolut FX) remain limited. We aimed to assess the in-hospital outcomes of 3 bioprosthetic valves (Evolut EPO, PRO+, and FX). We analyzed data from a Japanese multicenter registry involving 634 consecutive patients who underwent transcatheter aortic valve replacement (TAVR) with Evolut FX up until October 2023. Patients who underwent TAVR with Evolut EPO between 2018 and 2020 (n = 1128), and those with Evolut EPO+ between 2020 and 2023 (n = 1696) served as control groups. Exclusion criteria comprised patients on dialysis, with a history of infective endocarditis, or with insufficient data. Unmatched comparisons among the 3 valves were conducted, followed by a propensity score (PS)-matched comparison between Evolut EPO+ and FX. In the unmatched cohort, among the Evolut EPO, PRO+, and FX groups, all vascular complications (7.8% vs. 5.2% vs. 4.5%, respectively; p < 0.01) and new pacemaker implantation (PMI) rates (11.2% vs. 6.1% vs. 7.7%, respectively; p < 0.01) differed significantly. In the PS-matched analysis, the rate of all bleeding events was significantly higher in the Evolut EPO+ group (11.0%) than in the FX group (7.0%) (p = 0.02), while all vascular complications (4.6% vs. 4.6%, respectively; p = 1.00) and new PMI (5.9% vs. 7.6%, respectively; p = 0.28) rates were comparable. The incidence of stroke in the FX group was approximately half that of the EP+ group (3.7% vs. 1.9%, p = 0.095) without statistical significance. In conclusion, compared with Evolut EPO+, Evolut FX was associated with a lower incidence of in-hospital bleeding complications and may reduce an in-hospital stroke incidence.

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