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Three cases of coronary artery bypass grafting for complete occlusion of the left main coronary artery are described. Delivery of cardioplegia through the aortic root was used in all 3 cases with no evidence of perioperative myocardial infarction. Despite its theoretical disadvantages, aortic root cardioplegic delivery is an adequate technique of myocardial preservation in the presence of sufficient collateral vessels.
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© 1994 Published by Elsevier Inc.