ACUTE SYSTOLIC DYSFUNCTION IMMEDIATELY FOLLOWING VALVE DEPLOYMENT IN TAVR: WHEN SHOULD GRADIENTS BE EVALUATED FOLLOWING TRANSCATHETER AORTIC VALVE REPLACEMENT

Despite the number of TAVR devices implanted there exists no standardized timing for evaluation of the replacement valve's function. In the periprocedure time window, mean gradients and peak velocities have been noted to be abnormally low, which may suggest post deployment left ventricular stunning