In this episode, Dr. Valentin Fuster delves into a groundbreaking study on the effects of the cardiac myosin inhibitor, Aficamten, on patients with obstructive hypertrophic cardiomyopathy. The findings reveal significant improvements in echocardiographic measures of cardiac function, despite a mild and reversible decrease in left ventricular ejection fraction, highlighting the need for long-term safety evaluations of this promising treatment.