SURGICALLY TREATED SACCULAR LEFT MAIN CORONARY ARTERY ANEURYSM

Coronary artery aneurysm is not a common diagnosis, and those of the left main coronary artery(LMCA) are extremely rare with an incidence of 0.1% of patients undergoing percutaneous coronary intervention(PCI). We report a case of 68-year-old male patient, hospitalized in interventional cardiology department with a retrosternal pain, where PCI was performed revealing a saccular aneurysm of the LMCA. Computed tomography(CT) scan confirmed the diagnosis of isolated coronary artery aneurysm 15mm distal to the orifice of the LMCA. Cardiac surgery procedure was performed including: double coronary artery bypass grafting(CABG), occlusion of the LMCA orifice combined with distal occlusion of the aneurysm. The postoperative course was uneventful and the patient was discharged on postoperative day 6 without any remarks. Even though the etiology of the aneurysm was not fully investigated, it was suspected to be a congenital one.