title: Chest pain and a change in right bundle branch block.
abstract: A 73-year-old man was admitted to the hospital with substernal discomfort that had begun four hours earlier. The diagnosis was possible acute myocardial infarction.
authors.affiliation: Division of Cardiovascular Medicine, Stanford University School of Medicine, California, USA.
authors.forename: E W
authors.initials: EW
authors.lastname: Hancock
mesh_terms: D000368:Aged; D002037:Bundle-Branch Block / Q000150:complications / Q000503:physiopathology*; D002637:Chest Pain / Q000503:physiopathology*; D004562:Electrocardiography; D006801:Humans; D008297:Male; D009203:Myocardial Infarction / Q000150:complications / Q000503:physiopathology*