title: A rare case of anomalous origin of the left main coronary artery in an adult patient.
abstract: Anomalous origin of left coronary artery from the pulmonary artery (ALCAPA) is a rare congenital anomaly that causes a left-to-right shunt via the coronary system, resulting in coronary steal. We report an unusual case of a healthy 48 years-old patient presenting with dyspnea on exertion and mild chest pain who underwent surgical correction of this rare anomaly. Multiple procedures have been proposed in adults with ALCAPA. Although re-implantation of the left main coronary artery (LMCA) to the aorta remains the most physiological correction for this anomaly, the combination of LMCA ligation and coronary artery bypass grafting provides a dual coronary flow system and is preferable when re-implantation is impossible.
authors: Division of cardiac surgery, Centre Hospitalier de l'Université de Montréal (CHUM), St Urbain Street, Montréal, H2W 1T8, Canada.
authors: Pierre O
authors: PO
authors: Dionne
authors: Nancy
authors: N
authors: Poirier
authors: Jessica
authors: J
authors: Forcillo
authors: Louis M
authors: LM
authors: Stevens
authors: Carl
authors: C
authors: Chartrand-Lefebvre
authors: Samer
authors: S
authors: Mansour
authors: Nicolas
authors: N
authors: Noiseux
mesh_terms: D000328:Adult; D002637:Chest Pain / Q000209:etiology; D001026:Coronary Artery Bypass; D003330:Coronary Vessel Anomalies / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*; D003331:Coronary Vessels / Q000473:pathology / Q000601:surgery*; D004417:Dyspnea / Q000209:etiology; D006801:Humans; D008297:Male