What is an AED and how does it work?

An AED, or Automated External Defibrillator, is a portable device used to deliver an electric shock to the heart in order to restore its normal rhythm during sudden cardiac arrest (SCA). It works by analyzing the heart rhythm and, if necessary, delivering a shock to the person experiencing SCA. The device identifies whether the heart requires defibrillation, meaning an electric shock, or if it is not required. AEDs are designed to be user-friendly, with clear voice and visual instructions guiding the rescuer through the entire process. They are equipped with electrode pads that are attached to the person's chest, allowing the AED to monitor the heart's rhythm and deliver the shock, if needed. AEDs are essential in increasing the survival rate of SCA victims, as they restore the heart's natural electrical rhythm, providing a crucial immediate measure before professional medical help arrives.