Optimal Combination of Compression Rate and Depth During Cardiopulmonary Resuscitation for Functionally Favorable Survival

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Abstract
In recent clinical reports regarding cardiac arrest outcomes after closed-chest cardiopulmonary resuscitation (CPR), 1 factor strongly associated with worse outcomes has been inadequate performance of chest compressions.1-7 Recovery with good neurologic function after out-of-hospital cardiac arrest (OHCA) is well-correlated with target ranges of chest compression rate (CCR) and chest compression depth (CCD).3-7 In these studies,3-9 favorable ranges of CCR or CCD were independently identified, with worse outcomes outside each of those respective ranges.