Abstract
Subclavian artery aneurysms are extremely rare, accounting for approximately 0.1% of peripheral artery aneurysms. We present a case of a proximal left subclavian arterial aneurysm in a patient status post previous coronary artery bypass grafting; the aneurysm was complicated by involvement of the left internal mammary artery that had been previously utilized to revascularize the left anterior descending artery. Ostial stenosis of the internal mammary artery secondary to the aneurysm was present. Simultaneous reoperative coronary bypass surgery and repair of the left subclavian aneurysm was performed, with a good result. This is the second case reported in the literature of concomitant subclavian artery aneurysm repair and coronary revascularization.
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