Public Access Defibrillation: Is This Making Any Difference? Controversial Issues in Resuscitation from Cardiac Arrest.

Public access defibrillation is particularly valuable in witnessed cardiac arrests that occur in public places. Bystander and police use of automated external defibrillators (AEDs) has increased over the past 15 years, resulting in improved survival with normal or near-normal neurologic function. There is great promise for increasing bystander use of defibrillators as the technology is applied to linking patients with shockable arrests to volunteers committed to bringing AEDs to the patients. There continues to be controversy as to the value of epinephrine, antiarrhythmic drugs, hypothermia, and mechanical chest compression in resuscitative efforts.