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Defibrillation is often an important step in cardiopulmonary resuscitation (CPR). [ 6 ] [ 7 ] CPR is an algorithm-based intervention aimed to restore cardiac and pulmonary function. [ 6 ] Defibrillation is indicated only in certain types of cardiac dysrhythmias , specifically ventricular fibrillation (VF) and pulseless ventricular tachycardia .
A defibrillator is a machine that produces a defibrillation: electric shocks that can restore the normal heart function of the victim. The common model of defibrillator out of an hospital is the automated external defibrillator (AED), a portable device that is especially easy to use because it produces recorded voice instructions.
An automated external defibrillator (AED) machine is essential during resuscitation. Defibrillation during the first 3 to 5 minutes during resuscitation can produce survival rates as high as 50 to 70%. Placing AEDs in public places where there is one cardiac arrest in five years is cost-effective. [12]
Defibrillation [21] — Defibrillation is the definitive treatment step for those cases of cardiac arrest that involve a shockable rhythm, or one correctable by defibrillation (pulseless unstable ventricular tachycardia, coarse or fine ventricular fibrillation; it will not work for asystole or pulseless electrical activity)
Defibrillation threshold indicates the minimum amount of energy needed to return normal rhythm to a heart that is beating in a cardiac dysrhythmia. Typical examples are the minimum amount of energy, expressed in joules , delivered by external defibrillator paddles or pads, required to break atrial fibrillation and restore normal sinus rhythm .
Subcutaneous implantable cardioverter defibrillator, or S-ICD, is an implantable medical device for detecting and terminating ventricular tachycardia and ventricular fibrillation in patients at risk of sudden cardiac arrest. [1]
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Implantation of a cardiac resynchronization (biventricular) pulse generator with defibrillator [AICD], formation of pocket, transvenous leads, including placement of lead into left ventricular coronary venous system, intraoperative procedures for evaluation of lead signals, and obtaining defibrillator threshold measurements.