Factors associated with outcomes in traumatic cardiac arrest patients without prehospital return of spontaneous circulation

Background: Prognostic factors for the outcomes in traumatic cardiac arrest (TCA) patients transported to hospitals without prehospital return of spontaneous circulation (ROSC) remain uncertain. The aim of this study is to investigate factors associated with outcomes in TCA patients without prehospital ROSC. Methods: We conducted a retrospective cohort study using a multi-institutional, 5-year database. Only TCA patients without prehospital ROSC were included. The primary outcome was ROSC in the emergency department (ED), and the secondary outcome was 30-day survival. Logistic regression analysis was performed to determine the factors associated with primary and secondary outcomes. Results: Among 463 TCA patients, 73 (16%) had ROSC during ED resuscitation, and among those with sustained ROSC, 10 (14%) survived for at least 30 days. Injury severity score ≧ 16 (OR, 0.06; 95% CI: 0.02–0.20), trauma center admission (OR, 2.69; 95% CI: 1.03–7.03), length of ED resuscitation (OR, 0.98; 95% CI: 0.96-0.99), and total resuscitation length > 20 min (OR, 0.21; 95% CI: 0.08–0.54) were associated with ROSC. Conclusions: In TCA patients transported to hospitals without prehospital ROSC, resuscitation attempts could be beneficial. We should aim to resuscitate patients as soon as possible with appropriate treatments for trauma patients, early activation of trauma team, and then, as a result, shorter resuscitation time will be achieved.