A cardiac arrest is caused by an electrical problem in the heart. A person undergoing a cardiac arrest will be unconscious and not breathing. Cardiac arrest can be caused by defects to the heart, such as coronary heart disease or a heart attack, or external factors such as drug overdose, drowning, or choking.
According to the British Heart Foundation, more than 30,000 people have an out-of-hospital cardiac arrest in the UK each year, and the overall survival rate of people suffering from cardiac arrest out of hospital is less than 1 in 10, lower than in comparable countries across the world. Every minute without cardiopulmonary resuscitation (CPR) and defibrillation reduces the chance of survival by up to 10%. People who are trained in CPR will buy time for the casualty until professional help arrives.
There is evidence to show that the bystander response can have a huge impact. The Resuscitation Council states that the chance of survival can increase two or threefold when bystander CPR is used. Defibrillator can also make a critical difference, as when used within the first three minutes it can increase the chances of someone surviving a cardiac arrest by up to 70%.
St John’s Ambulance’s research suggests appropriate training could address the problem, with 64% of all respondents indicating that they would feel more comfortable performing CPR if they received the right education and support.
In February 2024, new figures published by BHF found that nearly half of UK adults (43%) have never learned CPR. Cardiac arrest recognition remains a key priority as it is the first step in triggering the emergency response to cardiac arrest. Creating a CPR-trained society will save more lives, improve public health, and enhance community resilience during emergencies.
The British Heart Foundation offers a free online training tool that can teach CPR and the correct steps of defibrillator use in just 15 minutes.
As well as delivering CPR, a defibrillator device can be used on someone experiencing cardiac arrest, which issues a high-energy shock to the heart and helps to restore a regular heart rhythm. Defibrillators are unevenly distributed across the UK; many are kept behind locked doors in private facilities. It is critical to know where your nearest and accessible defibrillator is to ensure someone experiencing a cardiac arrest can be supported as quickly as possible.
The Circuit is the national defibrillator network which provides the NHS ambulance services with vital information about defibrillators across the UK so that they can be accessed quickly to help save lives. Members can check whether their local defibrillators are registered with the circuit, and register defibrillators themselves, in a few easy steps on The Circuit website.