Abstract
According to the current American Heart Association (AHA)/American College of Cardiology (ACC) and European Society of cardiology (ESC)/European Association of Cardio-thoracic Surgery (EACTS) guidelines, severe aortic stenosis (AS) is defined as a peak aortic jet velocity (Vpeak) >4m/sec, a mean gradient (MG) >40 mmHg, and/or an aortic valve area (AVA) <1cm2. However, cardiologists are often confronted to discordant echocardiographic findings that are unexplained by a reduction in transvalvular flow. Discordances may raise uncertainty about the actual severity of the disease and thus therapeutic management.The aim of this study was to identify the causes of such discordance by measuring systemic arterial compliance (SAC), which could interfere with the evaluation of AS.
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