The objective of this single-center registry is to evaluate prosthetic valve hemodynamics and function over time in patients undergoing clinically indicated transcatheter aortic valve replacement (TAVR) for symptomatic severe aortic stenosis. Specific goals include:~Describe valve hemodynamics at rest (baseline, post-procedure, 30 days, 1 year) and with exercise (at 30 days and 1 year) after TAVR implantation to define valve function and hemodynamics over time.~Compare valve hemodynamics and function at rest and exercise between self-expanding and balloon expandable valves.
The purpose of this study is to help understand how the replacement valve functions over time, both at rest and during exercise.