Surgical management of left main coronary artery aneurysm

Aneurysmal dilatation of coronary arteries is characterized by abnormal dilatation of a localized or diffuse segment of the coronary arterial tree. Left main coronary artery aneurysms are rare coronary anatomic abnormalities. They rarely involve the left main coronary artery. Different strategies have been adopted, where the coronary artery aneurysms have been left as such, resected partially, isolated, reconstructed, ligated with a simultaneous bypass with internal mammary artery, or treated with vein grafts. We report a case of a successful ligation of aneurysm of the left main coronary artery and three simultaneous coronary artery bypass procedures (Fig. 1, Ref. 15).