To allow the heart to reset and resume normal sinus rhythm.
Since the chances of an adult losing conscience as a result of heart failure are higher than with a child, it is recommended to give the defibrillation treatment as soon as possible. Research shows that the early defibrillation is more likely to save lives for the individual suffering a heart attack .
American Red Cross early defibrillation can increase the chance of survival from cardiac arrest.
CPR and early defibrillation can reduce the risk of damage to the brain from inadequate blood flow. Thus, they can increase the likelihood fo survival.
Because it stimulates the heart to 'reset' itself.
CPR and early defibrillation can reduce the risk of damage to the brain from inadequate blood flow. Thus, they can increase the likelihood fo survival.
From the AHA related link: Many sudden cardiac arrest victims are in ventricular fibrillation (VF). VF is an abnormal, chaotic heart rhythm that prevents the heart from pumping blood. You must defibrillate a victim immediately to stop VF and allow a normal heart rhythm to resume. The sooner you provide defibrillation with the AED, the better the victim's chances of survival. Several studies have documented the effects of time to defibrillation and the effects of bystander CPR on survival from SCA. For every minute that passes between collapse and defibrillation, survival rates from witnessed VF SCA decrease 7 to 10 percent if no CPR is provided. When bystander CPR is provided, the decrease in survival rates is more gradual and averages 3 to 4 percent per minute from collapse to defibrillation. CPR can double or triple survival from witnessed SCA at most intervals to defibrillation.
When a person is in cardiac arrest, the heart goes into a spasm. The electrical activity become "spastic" and a condition known as ventricular fibrillation results. The defibrillator delivers a controlled electric shock to the body to give the heart a chance to start again. It does not start the heart per se. Defibrillating early greatly increases the chance of survival and minimises cardiac damage.
Defibrillation is a medical term.
Cardiac Chain of Survival: 1) Early Recognition & Access; 2) Early CPR; 3) Early Defibrillation; 4) Early Advanced Medical Care.
There is a cardiac chain of survival: Link 1: Early recognition and access; Link 2: Early CPR; Link 3: Early defibrillation; Link 4: Early advanced medical care.
Allow for a more rapid defibrillation
Defibrillation is performed to correct life-threatening fibrillations of the heart, which could result in cardiac arrest.