We report a 24-year-old man with mitral valve endocarditis complicated
by acute myocardial infarction due to coronary embolism. Percutaneous
transluminal coronary angioplasty and subsequent mitral valve replace
ment were performed. Postoperative coronary angiography revealed forma
tion of a mycotic aneurysm of the left anterior descending coronary ar
tery at the site of balloon inflation. The patient then underwent succ
essful resection of the aneurysm with coronary artery bypass grafting.
(C) 1998 by The Society of Thoracic Surgeons.