Defibrillators use electrical shocks to restore a normal heart rate, especially in cases of life threatening arrhythmias or sudden cardiac arrest, while pacemakers use low-energy electrical pulses to ...
March 18, 2003 — Performing CPR before defibrillation for out-of-hospital ventricular fibrillation has no advantage if the delay to shock is less than five minutes, according to the results of a ...
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