We urge organisations to install Public Access Defibrillators Posted on 02/04/2013 NARU»News Wire»Ambulance Trusts»South Central Ambulance Service»We urge organisations to install Public Access Defibrillators Approximately 30,000 people suffer a cardiac arrest outside hospital and are treated by emergency medical services every year. If defibrillation is delivered promptly, survival rates as high as 75% can be achieved.