Decreases in Left Atrial Strain with Mavacamten Therapy and Associations with Atrial Fibrillation.
BACKGROUND In obstructive hypertrophic cardiomyopathy (oHCM), the cardiac myosin inhibitor (CMI) mavacamten improves left ventricular outflow tract (LVOT) obstruction and functional capacity. Symptoms and exertional capacity in oHCM are also influenced by left atrial function, commonly assessed by left atrial strain (L...