Comparison of continuous compression with regular ventilations versus 30:2 compressions-ventilations strategy during mechanical cardiopulmonary resuscitation in a porcine model of cardiac arrest

Appropriate compression-ventilation (C:V) ratio is an important component of cardiopulmonary resuscitation (CPR), which plays a major role in the chain of survival for cardiac arrest (CA) victims (1). Since 2005, a C:V ratio of 30:2 is recommended by the American Heart Association (AHA) for adult CPR without advanced airway, with the purpose of improving hemodynamics by decreasing “hands-off” time. Animal experiments and computer modeling have demonstrated that vital organ perfusion and resuscitation outcomes are superior with 30:2 ratio (2-5)