Abstract 17174: Arterial Hyperoxia Associated With Better Survival Among Resuscitated Patients With Out-of-hospital Cardiac Arrest

BackgroundHyperoxia is suggested to be a potential risk factor for mortality of post return of spontaneous circulation (ROSC).ObjectiveThe purpose of this study was to assess the relationship between the post-ROSC hyperoxia and survival among resuscitated patients with out-of-hospital cardiac arrest (OHCA).MethodsThe CRITICAL study was a multicenter prospective observation using the OHCA database of 11 critical care medical centers in Osaka, Japan. OHCA patients who were attempted resuscitation, transported to participating institutions, and resuscitated from cardiac arrest were included from January 2013 through December 2013. Patients were divided into two groups according to PaO2 level on the first arterial blood gas from post ROSC to admission; hyperoxia of PaO2 of >=300 mmHg and non-hyperoxia of PaO2 of