A remarkable history, a life-saving revolution, and how to save a life

Not long ago, if someone suffered a sudden cardiac arrest outside a hospital, there was very little anyone could do.

Today, thanks to Automated External Defibrillators -AEDs – ordinary people save lives every day.

The story of the AED is one of the most remarkable advances in modern emergency care.

Early defibrillators developed in the mid-20th century were enormous machines, weighing more than 100 kilograms and used only by specialists in hospitals.

But doctors quickly realised something important: when a person’s heart falls into a dangerous rhythm such as ventricular fibrillation, every minute matters.

Research showed survival chances can decrease by about 7–10 per cent for every minute defibrillation is delayed after cardiac arrest.

That finding changed emergency medicine forever.

Engineers and clinicians began working toward a revolutionary goal – creating a defibrillator simple enough for anyone to use.

The result was the AED.

Modern AEDs are designed to guide everyday people through an emergency with calm voice prompts and built-in safety systems.

The device analyses the patient’s heart rhythm itself and will only deliver a shock if one is needed.

In other words, you do not need to be a paramedic or doctor to help save a life.

Over the decades, AEDs have become a familiar sight in airports, schools, sporting clubs, shopping centres and community spaces across Australia.

Once you start looking for them, they are everywhere, quietly waiting for the moment they are needed most.

And they work.

Some public-access AED programs around the world have achieved survival rates of more than 50 per cent when defibrillation occurs within the first few minutes of collapse.

Today’s AEDs are smaller, smarter and more connected than ever before.

Some can guide CPR timing, perform self-checks automatically and even connect with emergency response networks.

But perhaps the most powerful thing about an AED is not the technology itself.

It is what the technology represents.

An AED gives ordinary people the ability to do something extraordinary in a critical moment; to step forward, take action and help save someone’s life before paramedics arrive.

Sometimes, all it takes is opening the cabinet and listening to the voice inside.

Until the end of June, St John WA has 20% off G5 defibrillators.

Go to shop.stjohnwa.com.au/eofy to see what’s on offer.