Association between coronary flow and aortic stenosis during transcatheter aortic valve implantation.

ABSTRACT:

Aims

In patients with aortic stenosis (AS), the coronary flow reserve decreases even in the absence of epicardial coronary artery stenosis. Systolic coronary flow reversal (SFR) reflecting reduced coronary microcirculation, often seen in patients with severe AS, has a potential negative impact on the pathogenesis of cardiac dysfunction. However, there are limited data on the relationship between the severity of AS and SFR, as well as on the benefits of transcatheter aortic valve implantation (TAVI). The aim of this study was to evaluate the relationship between the severity of AS and efficacy of TAVI in improving SFR.

Methods and results

Consecutive patients with AS who had undergone TAVI using transoesophageal echocardiography (TEE) from November 2020 to February 2022 were

SUBMITTER: Suzuki W 

PROVIDER: S-EPMC10192257 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature