In Switzerland, a cardiac arrest takes place every one to two hours. Only 20% of victims are resuscitated by a third party before the arrival of the ambulance. Yet, every second counts: the brain lesions start four minutes after the cardiac arrest, and every minute we lose 10% chance of survival. They become irreversible after ten minutes.
Simple to use, defibrillators greatly increase the chances of survival for people with cardiac arrest. However, it is essential to use them very quickly. No specialised knowledge is required to use a modern defibrillator. So, feel free to use it.