TCT-698 Comparison of the fully repositionable and retrievable Lotus Valve and Direct Flow Medical Valve for the treatment of severe aortic stenosis: a high-volume single center experience

A limitation of first generation transcatheter aortic valve replacement (TAVR) devices was the occurrence of paravalvular leak (PVL) that when greater than mild has been demonstrated to a predictor of mortality. Second generation devices have been designed to reduce this. One technological advance