Obstruction after alcohol septal ablation is associated with cardiovascular mortality events

Left ventricular outflow tract obstruction (≥30 mm Hg at rest; LVOTO) is considered a possible risk of long-term outcomes in patients with hypertrophic cardiomyopathy (HCM). However, the influence of LVOTO on the occurrence of cardiovascular mortality events in patients after alcohol septal ablation (ASA) for obstructive HCM remains unresolved.We compared the outcomes of patients treated with ASA with residual LVOTO <30 mm Hg with those with...