Courtesy of Dr. José Álvarez. Alcohol septal ablation (ASA) for the treatment of obstructive hypertrophic cardiomyopathy (OHC) is a procedure introduced in 1995 as an alternative to surgical myectomy. The American College of Cardiology (ACC)/American Heart Association (AHA) guidelines indicate that ASA should be reserved for older patients with comorbidities, thus establishing surgical myectomy…