A Case Report of Recurrence of Angina Pectoris Caused by an Aortocoronary Venous Bypass Graft Aneurysm

Abstract

We experienced a 51-year-old male case of CABG whose graftography one month after CABG revealed a 0.5cm venous bypass graft aneurysm. Anginal pain recurred in the eighth month after CABG. Re-graftography showed enlargement of the aneurysm and stenosis of the graft at the same site. Re-CABG was carried out successfully and his postoperative course was good. Venous graft aneurysm is a comparatively rare complication, and that of the present case was considered to be most ascribable to the fragility of the graft, caused by mediastinitis secondary to the first CABG. Thrombus formation was noted in the aneurysm, with a risk of causing rupture or myocardial infarction. Therefore, such graft aneurysms should be treated by re-CABG as soon as possible after detection.