WHAT IS AN AUTOMATED EXTERNAL DEFIBRILLATOR?
An AED, or automated external defibrillator, is a device that automatically analyzes heart rhythms and advises the operator to deliver an electrical shock if the heart is in a fatal heart rhythm. AEDs are safe and will not shock anyone accidentally, unintentionally, or who is not in a fatal heart rhythm. Non-medical personnel can use AEDs safely and effectively with minimal training.
A computer inside the defibrillator analyzes the victim's heart rhythm. The device decides whether a shock is needed and requires that the operator press a button to deliver the shock. The shock is delivered through adhesive pads applied to the victim's bare chest. The shock stuns the heart, stopping abnormal heart activity, and allowing a normal heart rhythm to resume.
Sudden cardiac arrest (SCA) is a condition in which the heartbeat stops abruptly and unexpectedly. This usually is caused by ventricular fibrillation (VF), an abnormality in the heart's electrical system. When this happens, blood stops flowing to the brain, the heart, and the rest of the body, and the person collapses. In fact, the victim is clinically dead and will remain so unless someone helps immediately. SCA is treatable most of the time, especially when it is due to VF. Immediate treatment includes CPR and the use of an AED. This treatment must be provided within moments of collapse to be effective, preferably within three to five minutes. That is why prompt action is so critical and why it is so important that more citizens learn CPR and how to use an AED.
Following CPR and the use of an AED, subsequent care includes administration of medications and other advanced cardiac life support (ACLS) techniques provided by the City’s firefighter/paramedics and rapid transport to Salem Hospital by Rural/Metro Ambulance.