Reclassification of aortic stenosis by fusion of echocardiography and computed tomography in low-gradient aortic stenosis.

ABSTRACT:

Background

The integration of computed tomography (CT)-derived left ventricular outflow tract area into the echocardiography-derived continuity equation results in the reclassification of a significant proportion of patients with severe aortic stenosis (AS) into moderate AS based on aortic valve area indexed to body surface area determined by fusion imaging (fusion AVA_i). The aim of this study was to evaluate AS severity by a fusion imaging technique in patients with low-gradient AS and to compare the clinical impact of reclassified moderate AS versus severe AS.

Methods

We included 359 consecutive patients who underwent transcatheter aortic valve implantation for low-gradient, severe AS at two academic institutions and created a joint database. The primary endpoin

SUBMITTER: El Faquir N 

PROVIDER: S-EPMC8941065 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature