Diastolic blood pressure and end-tidal carbon dioxide during adult ICU cardiopulmonary resuscitation: association with return of spontaneous circulation

The authors aimed to evaluate the relationship between intra-arrest diastolic blood pressure (DBP) and end-tidal carbon dioxide (EtCO₂) levels with the return of spontaneous circulation (ROSC) during adult ICU cardiopulmonary resuscitation (CPR). Their findings indicate that both DBP and EtCO₂ are associated with ROSC, with DBP showing slightly better discrimination, although not statistically significant. The study suggests that these measures should be considered complementary indicators of physiological status during CPR rather than real-time predictors.