Paravalvular Aortic Leak After Transcatheter Aortic Valve Replacement Current Knowledge.

The article describes the causes of paravulvar leak (PVL) after transcatheter aortic valve replacement (TAVR). It mentions that it is not surprising to anticipate a higher frequency of PVL in TAVR due to the risks of prosthesis' inappropriate sizing and the interference of the old calcified valve. A study revealed that patients having aortic annulus <22 millimeter (mm) by echocardiography do not have moderate-severe PVL after TAVR.