Gilbert ON, et al. - Researchers intended to temporally quantify and localize paravalvular aortic leak (PVL) after transcatheter aortic valve replacement (TAVR) in the Medtronic CoreValve (MCV) vs the Edwards Sapien Valve (ESV), given that understanding PVL characteristics is vital to increase the precision of THV selection and PVL intervention. Not all locations of PVL showed improvement equally over time when the MCV and ESV were compared. This has consequences for heart failure readmissions. These findings could be used to influence valve selection and to recognize cases where earlier intervention on PVL may be suitable.