Contemporary techniques for catheter-based intervention for hypertrophic obstructive cardiomyopathy.

Hypertrophic obstructive cardiomyopathy (HOCM) is the most frequent genetic cardiovascular affection and is associated with high mortality and morbidity. Invasive treatment of symptomatic patients with HOCM refractory to drug therapy was limited to surgical myomectomy for years. In the mid 1990s, alcohol septal ablation (ASA) emerged as a new and less invasive option for septal ablation (SA) and is now considered a good alternative with excellent short- and long-term outcomes. Besides ASA, other techniques have been promoted to treat HOCM. The present review aims to summarise current practice and evidence of catheter-based techniques from the treatment of HOCM. We also detail technical points to achieve a safe and effective procedure.