Abstract
Anomalous origin of the left coronary artery from the pulmonary artery (ALCAPA) syndrome is a rare congenital coronary artery anomaly especially when diagnosed in an adult patient and remains an important cause of sudden cardiac death. We report a 46-year-old patient with ALCAPA syndrome managed with left main coronary artery (LMCA) interruption and grafting of the LMCA with left internal mammary artery so as to restore antegrade coronary flow. This approach of restoring dual-coronary-artery system by grafting the LMCA allows antegrade blood flow as in a normal coronary artery to a large area of viable myocardium, is more physiological, and is practical and easy to accomplish in an anteriorly placed and dilated LMCA as seen in our case.
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