What is it?
Aortic stenosis (AS) is a very common valvular disease that impacts approximately 9 million people worldwide. A narrowing of the valve opening restricts blood flow from the left ventricle into systemic circulation. Echocardiography plays a vital role in monitoring the progression of systolic and diastolic dysfunction, transvalvular gradients, and pulmonary hypertension. The continuity equation and 7 case examples outline the fundamentals for a proper echocardiographic analysis of aortic stenosis.