Disproportionately high aortic valve calcium scores in atrial fibrillation: implications for transcatheter aortic valve replacement.

Aims: Doppler mean gradient (MG) can underestimate aortic stenosis (AS) severity in patients with atrial fibrillation (AF) compared with patients with sinus rhythm (SR), potentially delaying intervention in AF. This study compared outcomes in patients with AF and SR following transcatheter aortic valve replacement (TAVR) and investigated delay in TAVR based on computed tomography aortic valve calcium score (AVCS).

Methods And Results: Patients who underwent TAVR from 2013 to 2017 for native valve severe AS were identified from an institutional database.