Ambulance, Automated external defibrillator, Cardiac arrest, Cardiac dysrhythmia, Cardiac pacemaker, Defibrillation, Electrocardiogram, Health professional, Hospital, Implant in medicine, Implantable cardioverter defibrillator, National health service, Normal sinus rhythm, Paramedics, Sinoatrial node, Ventricular fibrillation

From defibrillation origins to present