[Anomalous origin of the left coronary artery from the aorta. The surgical implications in a case]

A case of high take-off of the left coronary artery from the aorta in a patient with a large ventricular septal defect (VSD) is described. The preoperative detection of this coronary anomaly, enabled the surgeon to modify the technique of aortic cannulation in such a way that the anomalous left coronary artery could be adequately perfused with the cardioplegic solution. Furthermore, injury to the coronary artery during the operative procedure was carefully avoided by knowing the exact location and course of the left main coronary trunk, from the angiographic pictures. Other unfavorable pathophysiologic consequences of this anomaly may derive from the acute angle of origin of the coronary ostium relative to the aortic wall. This could limit coronary blood flow especially during exercise. It seems, therefore, reasonable to moderately restrict the physical activity of such individuals and to advise regular cardiological follow-up.