Catheterization and cardiovascular diagnosis
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Cathet Cardiovasc Diagn · Apr 1995
Review Case ReportsAneurysm of saphenous vein graft to coronary artery presenting as non-Q-wave myocardial infarction secondary to mass effect.
Large aneurysms (> 4 cm) of saphenous vein grafts (SVG) to coronary arteries are a rare complication of coronary artery bypass graft surgery (CABG). A 64-year-old male, status post-CABG 14 years ago, presented with dyspnea and diaphoresis. Pneumonia and non-Q-wave myocardial infarction (MI) were diagnosed. ⋯ At the time of surgery, the left internal mammary artery (grafted to the left anterior descending artery) was found to be stretched tautly over the aneurysm, resulting in impaired flow. The aneurysm was successfully resected. This is the first published case implicating a SVG aneurysm as the direct cause of a MI by mass effect.