Percutaneous transluminal septal myocardial ablation performed via the right coronary artery rather than the left anterior descending artery for the treatment of hypertrophic obstructive cardiomyopathy

Abstract

The patient was a 42year old female with no risk factors for coronary artery disease, but with a family history of sudden death involving her mother. HOCM was diagnosed in 2001 and β-blocker therapy was initiated. In 2006, and despite several episodes of syncope, more aggressive β-blocker therapy was poorly tolerated due to symptomatic bradycardia. Transthoracic echocardiography showed an ejection fraction of 70%, with asymmetric septal hypertrophy, most prominent in the basal septal region (18mm).