Cardiac pacing.
D001281:Atrial Fibrillation / Q000628:therapy; D001919:Bradycardia / Q000628:therapy; D002304:Cardiac Pacing, Artificial / Q000379:methods* / Q000451:nursing; D006333:Heart Failure / Q000628:therapy; D006801:Humans; D010138:Pacemaker, Artificial; D018579:Patient Selection; D013575:Syncope / Q000628:therapy