Emergent operation for aneurysm of the left main coronary artery presenting acute myocardial infarction
Yuichi Izumi1, Hiroki Yoshida, Noriyuki Shimizu
1Department of Thoracic and Cardiovascular Surgery, Nayoro City Hospital, Hokkaido, Japan.
Insights
A 37-year-old man with acute myocardial infarction underwent emergent surgery for a left main coronary artery aneurysm. Successful bypass grafting and aneurysm exclusion were performed, with an uncomplicated recovery.
Area of Science:
- Cardiology
- Vascular Surgery
Background:
- Acute myocardial infarction (MI) can be caused by coronary artery aneurysms.
- Left main coronary artery aneurysms are rare but critical conditions.
Observation:
- A 37-year-old male presented with acute MI and a large saccular aneurysm of the left main coronary artery.
- Coronary angiography confirmed the aneurysm and occlusion of the left anterior descending artery.
Findings:
- Emergent coronary artery bypass grafting (CABG) was performed using the left internal thoracic artery and saphenous vein.
- The left main coronary artery aneurysm was successfully ligated and excluded.
Implications:
- This case highlights the successful surgical management of a rare left main coronary artery aneurysm causing MI.
- Prompt surgical intervention can lead to favorable outcomes in complex coronary artery pathologies.
Abstract:
We report an emergent operation on a 37-year-old man presenting with acute myocardial infarction with an aneurysm of the left main coronary artery. A preoperative coronary angiogram revealed a large saccular aneurysm of the left main coronary artery and complete occlusion of the left anterior descending artery. Emergent coronary artery bypass graftings to the left anterior descending artery with the left internal thoracic artery and the circumflex artery with the saphenous vein were performed, followed by the ligation and exclusion of the aneurysm of the left main coronary artery. The postoperative course was uncomplicated and the patient did well. Although the etiology of the aneurysm was not investigated, it was suspected to be a congenital aneurysm.
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