A report of the treatment of coronary artery aneurysm without cardiopulmonary bypass.

Coronary artery aneurysm (CAA) is a fairly rare pathologic entity whose exact incidence is unknown but has been reported from 1.4% in autopsy series [Daoud, 1963] to 4.9% in the Coronary Artery Surgery Registry [Swaye, 1984]. While atherosclerosis is the most common cause of true coronary artery aneurysms, pseudoaneurysms most often occur as complications of percutaneous transluminal coronary angioplasty (PTCA) or directional artherectomy [Dralle, 1995]. We report the successful treatment of a coronary artery aneurysm with comcomitant coronary revascularization without the use of cardiopulmonary bypass in a patient with impaired pulmonary and myocardial function. The use of an intracoronary shunt, previously described by one of the authors (EW), facilitated the surgical procedure [Franzone 1977].