the description / meaning of a term


An Out of Hospital Cardiac Arrest (OHCA) is a cardiac arrest that takes place outside a hospital. This can be in a public place, such as a shopping centre or in the street, or in a private place, such as the home.



Cardiopulmonary resuscitation (CPR) is an emergency procedure where someone presses up and down on the chest of a person who has had a cardiac arrest. If they are trained and confident in CPR, they may also give some rescue breaths via mouth-to-mouth resuscitation.



A defibrillator is a small device that gives an electric shock to the heart, through the chest wall, in order to re-start a heart that has stopped beating or that is beating abnormally. When this is done, it is called defibrillation.



An automated external defibrillator (AED) is a portable machine that can be used to defibrillate someone who is having a cardiac arrest.



A public access defibrillator (PAD) is an AED that is available in community settings to use when someone has a cardiac arrest. You can see them outside and inside many public buildings, for example, community halls, golf clubhouses and railway stations.


Community First Responder

A Community First Responder is someone who is trained in basic life support and the use of a defibrillator, who may be sent by the emergency services to attend a cardiac arrest. This could be, for example, paramedics, firefighters, Police Scotland staff or community first responders.



An implantable cardioverter defibrillator (ICD) is a small, battery-powered device that is placed under the skin of the chest or abdomen. It monitors the heart beat through thin wires attached to the heart. If the heart stops beating or beats abnormally, the ICD delivers an electric shock to the heart to get it beating normally again.



An electrocardiogram (ECG) is a non-invasive test, where electrode patches are attached to the skin to measure electrical impulses from the heart. An ECG can show disturbances in the electrical activity of the heart, which can be caused by abnormal heart rhythms and areas of injury.What is a Cardiac Arrest?



Ariennir achub bywyd Cymru gan Lywodraeth Cymru ac fe'i cefnogir gan rwydwaith cardiaidd Cymru, drwy'r gr┼Áp gweithredu ar gyfer anhwylderau'r galon. Save a Life Cymru is funded by Welsh Government and supported by the Wales Cardiac Network, through the Heart Conditions Implementation Group.