Ao, aorta; AR, aortic regurgitation; CFD, color-flow Doppler; LV, left ventricle; LV EDP, left ventricular end-diastolic pressure; PW, pulse-wave; SBP, systolic blood pressure; TAVR, transcatheter aortic valve replacement. Ao, aorta; AR, aortic regurgitation; CFD, color-flow Doppler; LV, left ventricle; LV EDP, left ventricular end-diastolic pressure; PW, pulse-wave; SBP, systolic blood pressure; TAVR, transcatheter aortic valve replacement. Ankur Kalra et al. Open Heart 2018;5:e000728 ©2018 by British Cardiovascular Society