Anomalous origin of left coronary artery from pulmonary artery in adults.

Various techniques have been described for management of anomalous origin of the left coronary artery from the pulmonary artery presenting in adults. Three patients, 1 male and 2 females, aged 27-37 years, underwent transpulmonary pericardial patch closure with concomitant left internal thoracic artery anastomosis to the left anterior descending artery, under standard cardiopulmonary bypass, thus creating a two-coronary system. One patient had concomitant mitral valve repair. All 3 survived the operation. Postoperative angiography in 2 patients revealed good antegrade flow with decreased collaterals in one and competitive inhibition with increased collaterals in the other. This procedure is considered to be the safest and simplest in this subset of patients.