title: Corrected transposition of the great arteries simulating coronary heart disease in adults.
abstract: Two middle-aged adults with corrected transposition of the great arteries presented with chest pain and dyspnea, initially attributed to coronary arterial disease with left ventricular dysfunction and mitral regurgitation. The clinical diagnosis of coronary arterial disease was supported in these patients by electrocardiographic changes of probable old anteroseptal myocardial infarction and by an abnormal cardiac silhouette on the chest x-ray film suggestive of ventricular aneurysm. Coronary arteriographic studies in both patients showed that the morphologic left coronary artery supplied the venous ventricle, and the right coronary artery supplied the systemic ventricle. Neither patient had coronary arterial luminal narrowing. We propose that anginal chest pain in these patients resulted from inadequate coronary reserve of the morphologic right ventricle functioning as a systemic ventricle.
mesh_terms: D000328:Adult; D017023:Coronary Angiography; D003327:Coronary Disease / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008875:Middle Aged; D014188:Transposition of Great Vessels / Q000000981:diagnostic imaging*