Advanced TAVR (Transcatheter Aortic Valve Replacement) in Pune by Dr. Umesh Akkalkotkar for aortic stenosis. Minimally invasive heart valve replacement with faster recovery. Transcatheter Aortic Valve Replacement (TAVR), also known as Transcatheter Aortic Valve Implantation (TAVI), is a minimally invasive procedure used to treat severe aortic stenosis—a condition in which the aortic valve narrows, restricting blood flow from the heart.