Why have an Automated External Defibrillator? 

​  According to the American Heart Association, of the more than 350,000 out-of-hospital cardiac arrests that occur in the United States each year, more than 100,000 happen outside the home in a public setting. Less than 50% of cardiac arrest victims get the immediate help they need before emergency medical services arrive, in part because emergency responders take, on average, between four and ten minutes to reach someone in cardiac arrest. Average brain death without oxygen or circulation of blood through the tissue can occur within 3-5 minutes. Early initiation of high quality CPR in conjunction with the presence of a publicly accessible AED has shown the greatest chance of survival for out-of-hospital cardiac arrest patients in multiple studies.  

  In a recent study published, February 26th, 2018 in the Circulation Journal Report (Full Article http://newsroom.heart.org/news/cardiac-arrest-survival-greatly-increases-when-bystanders-use-an-automated-external-defibrillator) "An international team of researchers looked at 49,555 out-of-hospital cardiac arrests that occurred in major U.S. and Canada cities. They analyzed a key subgroup of these arrests, those that occurred in public, were witnessed and were shockable. The researchers found that nearly 66 percent of these victims survived to hospital discharge after a shock delivered by a bystander. Their findings emphasized that bystanders make a critical difference in assisting cardiac arrest victims before emergency responders can get to the scene."

Study Highlights:

  • Survival from cardiac arrest nearly doubled when bystanders used a publicly-available automated external defibrillator (AED), while waiting for emergency medical services.
  • Cardiac arrest victims who received a shock from a publicly-available AED that was administered by a bystander had 2.62 times higher odds of survival to hospital discharge and 2.73 times more favorable outcomes for functioning compared to victims who first received an AED shock after emergency responders arrived.
  • ​Without a bystander using AED shock therapy, 70 percent of cardiac arrest patients either died or survived with impaired brain function.

"Cardiac arrest survival greatly increases when bystanders use an automated external defibrillator"