Speckle Tracking Echocardiography‐Based Correlation Between Left Atrial Strain and Functional Capacity in Patients With Hypertrophic Cardiomyopathy

The left atrium (LA) dilates and its function decreases as a chronic secondary change in hypertrophic cardiomyopathy (HCM). LA strain is a more sensitive measure of LV filling pressure than LA volume and can be used to predict the functional capacity in HCM.