[Birth anomalies of coronary arteries. Responsibility in myocardial ischemia].

Anomalous origin of the left or right coronary artery from the contralateral sinus of Valsalva with coursing between the aorta and the pulmonary trunk way cause angina, myocardial infarction or sudden death. This anomaly should be suspected especially when ischemic symptoms occur in young patients without risk factor for atherosclerosis. We believe that surgical operation after demonstration of myocardial ischemia is indicated to prevent severe myocardial ischemia or sudden death.