Valvuloarterial impedance (Zva): Global left ventricular afterload in aortic stenosis Valvuloarterial impedance (Zva) is an echocardiographic measure of global left ventricular afterload in aortic stenosis [1]. It accounts
What is the phenomenon of pressure recovery in aortic stenosis? Phenomenon of pressure recovery in aortic stenosis: Systolic pressure in the aorta will be lower immediately distal to