Abstract
Two female patients are described with anomalous origin of the left coronary artery arising from the pulmonary artery who sustained an anterolateral myocardial infarction in infancy. Neither patient received surgical treatment although both have lived to middle age with minimal cardiovascular problems and have had uncomplicated pregnancies. Good exercise tolerance and long term survival may be possible even without surgery for patients with this anomaly. Keywords: myocardial infarction; coronary vessel anomalies; pulmonary artery; pregnancy; congenital heart disease
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Figure 1 .
(Left) Aortogram of case 1 showing a normal right coronary artery arising from the aorta but absence of the left coronary artery (arrowed). (Right) Selective injection into the right coronary artery shows retrograde filling of the left anterior descending and circumflex arteries through collaterals with the right coronary artery. The left system then drains into the pulmonary artery.