page_title: Automated external defibrillator
section_title: Indications
hierarchical_section_title: Automated external defibrillator / Indications
caption_attribution_description: Čeština: Řetězec přežití English: Chain of survival
context_page_description: An automated external defibrillator is a portable electronic device that automatically diagnoses the life-threatening cardiac arrhythmias of ventricular fibrillation and pulseless ventricular tachycardia, and is able to treat them through defibrillation, the application of electricity which stops the arrhythmia, allowing the heart to re-establish an effective rhythm.
  With simple audio and visual commands, AEDs are designed to be simple to use for the layperson, and the use of AEDs is taught in many first aid, certified first responder, and basic life support level cardiopulmonary resuscitation classes.
  The portable version of the defibrillator was invented in the mid-1960s by Frank Pantridge in Belfast, Northern Ireland.
caption: A diagram showing the chain of survival.
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