Long-Term Clinical Impact of Paravalvular Leak Following Transcatheter Aortic Valve Implantation

Overview

Journal J Clin Med

Date 2025 Jan 25

PMID 39860611

Authors

Cristina Aurigemma

Carlo Trani

Paola DErrigo

Marco Barbanti

Fausto Biancari

Giuseppe Tarantini

Gian Paolo Ussia

Marco Ranucci

Gabriella Badoni

Giovanni Baglio

Stefano Rosato

Affiliations

Soon will be listed here.

Abstract

Paravalvular leak (PVL) was initially recognized as one of the most common complications after transcatheter aortic valve implantation (TAVI) and has been linked to adverse clinical outcomes, including mortality. This study aims to assess the long-term clinical effects of PVL in patients undergoing TAVI with the latest generation of transcatheter aortic valves, as part of the national observational prospective multicenter study OBSERVANT II. OBSERVANT II included all consecutive patients with severe aortic stenosis who underwent TAVI across 28 Italian centers from December 2016 to September 2018. A total of 2125 patients were included in this analysis and stratified according to the presence of moderate-to-severe PVL (significant PVL, n = 155) versus no/trace-to-mild PVL (no significant PVL, n = 1970). The primary endpoint was 5-year major adverse cardiac and cerebrovascular events (MACCE), including all-cause death, stroke, myocardial infarction, and coronary revascularization. Five-year all cause death and re-hospitalization for heart failure (HF) were the secondary endpoints. In our cohort, the incidence of moderate-to-severe PVL was 7%. Age, aortic anulus perimeter, and self-expandable valves were determinants of PVL. The risk of MACCE, all-cause death, and re-hospitalization for HF at the 5-year follow-up were not different between the study groups [HR = 1.07 (95% CI: 0.85-1.34) = 0.571; HR = 1.10 (95% CI: 0.87-1.39) = 0.435; HR = 1.20 (95% CI: 0.88-1.62) = 0.245, respectively]. : In this analysis of the OBSERVANT II study, moderate/severe PVL was not associated with a higher incidence of MACCE and re-hospitalization for heart failure at the 5-year follow-up.

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