Distal Left Main Coronary Artery Aneurysm Resection during 5-Vessel Coronary Artery Bypass Grafting

Area of Science:

• Cardiovascular Medicine
• Vascular Surgery

Background:

• Coronary artery aneurysms (CAAs) are dilations of coronary arteries, often linked to atherosclerosis.
• While some patients are asymptomatic, CAAs carry risks of rupture, dissection, and thromboembolic events.
• Optimal management strategies for CAAs remain debated due to a lack of consensus on intervention timing and methods.

Observation:

• A 58-year-old male presented with a large aneurysm at the trifurcation of the left anterior descending and left circumflex arteries.
• The aneurysm involved the left main coronary artery.

Findings:

• The patient underwent successful surgical ligation and removal of the left main coronary artery aneurysm.
• The procedure was performed concurrently with 5-vessel coronary artery bypass grafting (CABG).

Implications:

• This case demonstrates a viable surgical approach for managing large, complex left main coronary artery aneurysms.
• Further discussion on the considerations and treatment options for left main coronary artery aneurysms is warranted.