Cardiac pacemakers.
D000208:Acute Disease; D001919:Bradycardia / Q000628:therapy; D006328:Cardiac Catheterization; D004567:Electrodes, Implanted; D005500:Follow-Up Studies; D006325:Heart Atria; D006327:Heart Block / Q000150:complications / Q000628:therapy; D006352:Heart Ventricles; D006801:Humans; D009203:Myocardial Infarction / Q000150:complications; D010138:Pacemaker, Artificial / Q000009:adverse effects; D011674:Pulse; D013997:Time Factors