Interventions for Left Main Coronary Artery Disease

Abstract

Unprotected left main coronary artery (ULMCA) disease constitutes 5 to 7% of the patients undergoing coronary angiography.[1] It is associated with a high mortality as it supplies a large area of the myocardium—approximately 84% of the left ventricle in right dominant system and 100% in a left dominant system.[2] In CASS (Coronary Artery Surgery Study) registry, mortality in medically treated patients is as high as 63% at 5 years.[3]