Defibrillation is the definitive treatment for the life-threatening cardiac arrhythmias, ventricular fibrillation and ventricular tachycardia. It consists of delivering a therapeutic dose of electrical energy to the affected heart with a device called a defibrillator. This depolarizes a critical mass of the heart muscle, terminates the arrhythmia and allows normal sinus rhythm to be re-established by the body’s natural pacemaker, in the sinoatrial node of the heart. It can be external, transvenous or implanted depending on the type of the device used.
Estidotmy 24 September 2008
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