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The chain of survival is a set of most important factors affecting survival after an out-of-hospital cardiac arrest (OHCA). Recognising the difficulties in applying the chain is the key to improving outcomes. Early return of spontaneous circulation (ROSC) after a cardiac arrest is a fundamental factor for patient survival.

kardiologia polska

Comparison of the early effects of out-of-hospital resuscitation in selected urban and rural areas in Poland. A preliminary report from the Polish Cardiac Arrest Registry by the Polish Resuscitation Council