chain of survival


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A sequence of steps proposed by the American Heart Association for managing early cardiac arrest. The chain would begin with CPR of a victim at the scene by trained laypersons, and would be passed on to emergency medical services upon their arrival

chain of sur·vi·val

(chān sŭr-vī'văl)
The American Heart Association's term for four major interventions designed to reduce suddencardiac death-early access, early cardiopulmonary resuscitation (CPR), early defibrillation, and early advanced life support (ALS).

chain of survival

In emergency cardiac care, the notion that the survival of patients in cardiac arrest depends on the linkage of the following: 1. immediate recognition and activation, 2. early CPR, 3. rapid defibrillation, 4. effective advanced life support, and 5. integrated post-cardiac arrest care. If for any reason any one of these links is missing or delayed, the chance of survival decreases considerably.
See: cardiopulmonary resuscitation
See also: chain
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References in periodicals archive ?
In addition to the AEDs themselves, technology applications including mapping AEDs and automated alerting of nearby lay first responders have the potential to significantly strengthen the chain of survival and increase survival rates.
The great advance in resuscitation, and practically the reason for the existence of the Chain of Survival, is the urgency with which defibrillation is administered.
"You are the first step in the chain of survival," she said.
The chain of survival was fully described and delineated in the 1992 guideline for CPR and emergency cardiac care by the American Heart Association (AHA).
Rapidly implementing the "chain of survival" model (2) can help increase the chances of survival from sudden cardiac arrest.
Most cardiac arrests in adult patients are due to ventricular fibrillation (VF) or cardiac-related causes, and early defibrillation improves survival of such patients (1,2) and is therefore an important part of their immediate treatment (combined with the other links of the chain of survival for both in- and out-of-hospital cardiac arrest).
"We need money urgently to strengthen the Chain Of Survival all around Ireland.
Steve Walton, the brigade's Redcar District Manager said: "All members of the public can be taught life saving skills which could form a vital link in the chain of survival."
Despite renewed worldwide interest in implementing effective resuscitation procedures in the pre-hospital environment, with emphasis on the much-acclaimed 'chain of survival', and despite increased education and awareness of the general public and the training of health care providers in the use of the automated external defibrillator (AED), an unacceptably high number of deaths from cardiac arrest still occur outside hospital.
AHA, the American Red Cross (ARC), and the National Safety Council (NSC) rate early defibrillation as the most critical link in the chain of survival. It is easy, safe, and effective, but it has to be done quickly because survival rates drop by seven percent to 10 percent for each minute that elapses between onset of SCA and the first defibrillation shock.
Feingold says, "a vital link in the chain of survival can be strengthened, and more victims of cardiac arrest will have a fighting chance at survival."
The AHA identifies the critical steps of response to a cardiac arrest as the "chain of survival." The four links in this chain are: (a) early access, (b) early CPR, (c) early defibrillation, and (d) early advanced cardiac life support (ACLS).