2 min read
A cardiac arrest occurs when the heart suddenly stops beating.
It is a medical emergency that can lead to death.
With urgent medical care to restart the heart, survival is possible.
Cardiac arrest treatment steps are: Call. Push. Shock. Call Triple Zero (000) immediately, start chest compressions and use a defibrillator (AED) if available.
Your heart is one of the most important muscles as it pumps blood all around your body. This blood is full of oxygen, which is needed by every cell in your body. A cardiac arrest occurs when the heart stops beating. That’s why it’s a medical emergency that can lead to death.
A cardiac arrest is when your heart stops beating. This means that your brain and vital organs are starved of oxygen; you become unconscious and stop breathing or do not breathe normally. A cardiac arrest is a medical emergency.
Every minute counts when a person is in cardiac arrest. Without chest compressions and use of a defibrillator, a person in cardiac arrest will not survive.
A cardiac arrest can be survived if you get appropriate help. If you see someone in this situation, call Triple Zero (000) immediately. The call operator can talk you through what to do. Any attempt at resuscitation is better than no attempt.
People often use these terms interchangeably, but they’re not the same. A cardiac arrest is different to a heart attack. The symptoms and management are also different.
If someone is having a cardiac arrest, they will not be conscious or breathing normally. They need immediate help by calling Triple Zero (000), starting chest compressions and using a defibrillator (AED).
A heart attack can sometimes deteriorate to cause a cardiac arrest. Urgent response within 10 minutes of chest pain and/or other warning signs of heart attack starting may prevent a cardiac arrest in a person experiencing a heart attack.
Your heart's electrical system controls the rate and rhythm of its pumping. A cardiac arrest is usually caused by an electrical malfunction in your heart’s electrical system that causes your heart to stop pumping.
Certain heart conditions and events can lead to cardiac arrest if they cause a life-threatening arrhythmia (heart rhythm problem). Although heart disease is a common cause of many cardiac arrests, they may also be caused by trauma, respiratory (breathing) problems, drowning, electrocution or allergic reactions. Sometimes there’s no identifiable cause of a cardiac arrest.
A cardiac arrest can happen to any of us. Most cardiac arrests that occur out of hospital occur in people’s homes, but a cardiac arrest can happen anywhere, at any time. Each year in Australia, about 25,000 people have a cardiac arrest out of hospital, and only about 10% of these people survive to leave hospital and go home.
A cardiac arrest happens suddenly and rapidly. It often occurs with no warning. The person in cardiac arrest will:
A cardiac arrest is a medical emergency. If a person has a cardiac arrest, they will not be conscious or breathing normally. They need your immediate help by calling Triple Zero (000), starting chest compressions and using a defibrillator (AED).
Every minute counts when a person is in cardiac arrest. You don’t have to be a trained paramedic to help save a life. Any bystander (even with no training) can improve the likelihood of a cardiac arrest patient surviving by taking three key steps.
Call |
Call Triple Zero (000). Request an ambulance. |
---|---|
Push |
Compressions-Only CPR (Cardiopulmonary Resuscitation). Push hard and fast in the centre of the chest. |
Shock |
Use an AED. Provide rapid defibrillation. Anyone can use a defibrillator, as the device gives voice instructions to tell you what to do. |
The rescuer should continue CPR until the ambulance arrives. Remember the Triple Zero (000) operator will guide you through what to do.
Cardiopulmonary Resuscitation (CPR) is a combination of mouth-to-mouth rescue breathing and chest compressions. CPR helps to keep blood and oxygen circulating to the brain of a person whose heart has stopped beating, until the heart can be restarted. CPR alone does not restore a normal heart rhythm.
Compressions-Only CPR (COCPR) is CPR without rescue breaths (also known as ‘hands only CPR’). Both types of CPR double the patient’s survival rates.
An automated external defibrillator (AED) is a portable electronic device that diagnoses life-threatening abnormal heart rhythms that can cause a cardiac arrest.
An AED might be able to treat these abnormal heart rhythms by giving an electric shock to try to ‘restart’ the heart to its normal rhythm. This is known as defibrillation.
An automated external defibrillator (AED) will only give a shock if it is necessary.
You cannot do any harm by using an automated external defibrillator (AED) on someone who is unconscious.
If the survivor had brain damage and how much
Time between collapse and the start of CPR/defibrillation
Quality of CPR/defibrillation
When brain activity restarted after the cardiac arrest
Know the difference between heart attack and cardiac arrest, what symptoms and warning signs to look out for and how common they are in Australia
Particularly in the case of sudden cardiac arrest, because this is when someone’s heart abruptly stops beating, for no apparent or obvious reason.
Australian scientists will build the world’s largest-ever registry of sudden cardiac arrest deaths in a major bid to solve one of the most elusive and frightening mysteries of cardiovascular disease.
Last updated24 January 2024