Ventricular fibrillation and pacing.
D003645:Death, Sudden; D004566:Electrodes; D006327:Heart Block / Q000628:therapy*; D006801:Humans; D010138:Pacemaker, Artificial / Q000009:adverse effects*; D013610:Tachycardia / Q000209:etiology; D014693:Ventricular Fibrillation / Q000209:etiology*