Implantable cardioverter/defibrillators (ICDs).
D017147:Defibrillators, Implantable / Q000009:adverse effects / Q000191:economics; D004868:Equipment Failure; D006801:Humans; D013575:Syncope / Q000209:etiology; D017180:Tachycardia, Ventricular / Q000628:therapy; D014693:Ventricular Fibrillation / Q000628:therapy