Single coronary artery with myocardial infarction and AV block.
A case of single coronary artery with myocardial infarction was found in a 77-year-old woman.  Study of the conductive system in this case did not show any abnormalities that could be correlated with the terminal clinical episode of heart block.  In seven anatomically proven cases reported, the single coronary artery arose from the right aortic sinus, which suggests a possible causal relationship to infarction.
D000368:Aged; D001161:Arteriosclerosis / Q000473:pathology; D001283:Atrioventricular Node / Q000473:pathology; D001344:Autopsy; D003330:Coronary Vessel Anomalies / Q000150:complications* / Q000473:pathology; D003331:Coronary Vessels / Q000473:pathology; D005260:Female; D006327:Heart Block / Q000209:etiology* / Q000473:pathology; D006801:Humans; D009203:Myocardial Infarction / Q000209:etiology* / Q000473:pathology; D009206:Myocardium / Q000473:pathology; D013927:Thrombosis / Q000473:pathology