CRT-800.16 Utility Of Dobutamine and Pressure Wire Use in Assessing Low Flow Low Gradient Aortic Stenosis With Reduced EF

Current guidelines discourage aortic stenosis (AS) evaluation by direct pressure measurement if echocardiography (echo) is adequate. However several studies show sizable differences between echo and catheterization (cath) lab measurements. Dobutamine Challenge is recommended for evaluation of Low