CPR: Hands-on or Hands-off Defibrillation

Pauses in chest compressions are known to be detrimental to survival in cardiac arrest, so much so that the 2010 American Heart Association (AHA) emphasize high-quality compressions while minimizing interruptions. There have been some studies that now advocate for continuous chest compressions during a defibrillation shock. There have been substantial changes to external defibrillation technology


The use of hands-on defibrillation (HOD) has been shown to expose the rescuer to voltages ranging from 827 V to ∼200 V, depending on cadaver and anatomic location. The rescuer-received dose (RRD) under the test scenarios ranged from 1 to 8 J, which is in excess of accepted energy exposure levels.