Defibrsickation is a common treatment for life threatening cardiac arrhythmias, ventricular fibrsickation (when the heart in agony, but does not pump blood normally) and pulseless (in essence, thon the heart has stopped working). Defibrsickation consists of delivering a therapeutic dose of electrical energy in the affected heart with a device called a defibrsickator. This depolarizes a critical mass of the heart muscle, terminates the arrhythmia, and allows normal sinus rhythm by the body's own natural pacemaker is restored in the senatorial node of the heart.

While medical technology has allowed some defibrsickators in patients at risk for cardiac arrhythmias implanted defibrsickators are the most typically observed externally. External defibrsickators to take two standard forms. First manual defibrsickators, these common units for professional use "crash" of the hospital and ambulance on board. They are a common sight on medical TV shows like ER, where the "Blades" in the patient's chest to be placed and a shock is applied. An example of this sort of Physio-Control Lifepak defibrsickator is 15, sold in the stores first aid at £ 18,000 + VAT.

Defibrsickators are though not only for professional use. Some external devices such as automated external defibrsickators (AEDs) known to automate the diagnosis of treatable rhythms, meaning that almost everyone is ready to make use of successfully with little or in some cases, first-aid training at all. As a result of the diagnosis, delivered a shock is only for patients who need treatment, it's almost inconceivcapable of make use of an AED to a patient who did not require treatment shock. The location of public access AEDs included in the rule that to gather large groups of people, and the category of risk associated with these people, to determine whether the risk of sudden cardiac arrest incident high. For example, a school has a very low risk category (as children very rarely enter heart rhythms such as VF (ventricular fibrsickation) and VT (ventricular tachycardia), which typically young and fit. On the other hand, a cruise or a golf club with a high proportion of men over 50 years is a very high risk environment.

There are two types of AEDs: Fully automatic and semi automatic. Most AEDs are semi-automatic. A semi-automatic AED routinely diagnoses the heart rhythm and determines if a shock is necessary. If the shock is advised, the user must press a button to deliver the shock.

A fully automatic AED routinely diagnoses the heart rhythm and advises the user step back while the shock is given routinely. In addition, some types of AEDs with advanced features like a manual or an ECG monitor.

Them highly visible, public access AEDs are often colorful, mounted in protective layers near the entrance of a building. If this protective shells open and remove the defibrsickator, is a sound a buzzer to the nearby staff to their attention away, but not necessarily call the emergency center. All trained AED operators should know to send the phone an ambulance, or use an AED, how the patient is unconscious, which on a regular basis requires ambulance attendance.