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The Annals of Thoracic Surgery, Vol 54, 621-626, Copyright © 1992 by The Society of Thoracic Surgeons

ARTICLES

Anomalous left coronary artery from the pulmonary artery: results of isolated aortic reimplantation

PR Vouhe, D Tamisier, D Sidi, F Vernant, P Mauriat, P Pouard and F Leca
Department of Cardiovascular Surgery, Laennec Hospital, Paris, Frnce.

Thirty-one consecutive children with anomalous left coronary artery underwent direct aortic reimplantation of the anomalous artery without an associated procedure. There were five deaths (16%; 70% confidence limits, 9% to 26%), three in the hospital and two early (within 3 months). The severity of preoperative left ventricular dysfunction was the only incremental risk factor for mortality: 31% mortality rate among patients with left ventricular shortening fraction of less than 0.20 versus 0% among patients with a left ventricular shortening fraction of 0.20 or more (p = 0.03). There were no late deaths up to 6 years, a survival rate of 84% +/- 7%. Late results were studied in 23 survivors having a follow-up of longer than 12 months. Ninety-six percent were free of symptoms; left ventricular function recovered to normal in all patients; moderate to severe mitral regurgitation decreased to minimal or no regurgitation in most patients (5/7); and the reimplanted anomalous left coronary artery was patent in each patient. Based on this study, we reached five conclusions. (1) Direct aortic reimplantation is technically feasible in most patients with anomalous left coronary artery and yields a high rate of late patency. (2) Left ventricular resection is unnecessary. (3) The mitral valve should not be interfered with at the initial operation, but mitral regurgitation may persist in a few patients and necessitate later operation. (4) In patients with moderate left ventricular dysfunction, the operative risk is low and early operation indicated. (5) In patients with severe left ventricular dysfunction, the operative risk is high; heart transplantation may be suggested, but our current approach favors an immediate corrective procedure.

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