What is it?

Defibrillation is a procedure used to treat life threatening conditions that affect the rhythm of the heart such as cardiac arrhythmia, ventricular fibrillation and pulseless ventricular tachycardia

What is it used for?

Apparatus used to control heart fibrillation by application of an electric current to the chest wall or heart. An automated external defibrillator (AED) is a portable device that checks the heart ... AEDs are used to treat sudden cardiac arrest