title: Pacemaker exit block.
mesh_terms: D004562:Electrocardiography; D006327:Heart Block / Q000209:etiology*; D006339:Heart Rate; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000628:therapy*; D010138:Pacemaker, Artificial