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Witnessed prehospital traumatic arrest: predictors of survival to hospital discharge

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European Journal of Trauma and Emergency Surgery Aims and scope Submit manuscript

Abstract

Purpose

Trauma patients are rapidly transported to the hospital for definitive care. Nonetheless, some are alive upon Emergency Medical Services (EMS) arrival but arrest on-scene or during transport. The study objective was to examine EMS-witnessed traumatic arrests to define patients who survived hospital discharge.

Methods

Patients sustaining EMS-witnessed traumatic arrest and entered into the National Trauma Data Bank were included (2007–2018). Mortality defined groups: survival to hospital discharge vs. in-hospital death vs. death in ED/declared dead on arrival (DOA). ANOVA/Chi-square compared cohorts. Multivariable analysis established factors associated with survival out of ED and to hospital discharge.

Results

After exclusions, 14,177 patients met the criteria: 10% survived, 22% died in hospital, and 68% died in ED/DOA. Survivors tended to be female (33% vs. 23% vs. 23%, p < 0.001), blunt traumas (71% vs. 56% vs. 60%, p < 0.001), have higher scene GCS (15 [7–15] vs. 3 [3–11] vs. 3 [3–7], p < 0.001), and lower injury severity (ISS 13 [7–26] vs. 27 [18–41] vs. 25 [10–30], p < 0.001), particularly of the head (AIS 0 [0–2] vs. 0 [0–4] vs. 1 [0–4], p < 0.001). Survival to hospital discharge was independently associated with higher field GCS (OR 1.252, p < 0.001) and SBP (OR 1.006, p < 0.001), and Head AIS scores (OR 1.073, p < 0.001). Increasing age (OR 0.984, p < 0.001), higher ISS (OR 0.975, p < 0.001), male sex (OR 0.695, p < 0.001), and penetrating mechanism of injury (OR 0.537, p < 0.001) were associated with reduced survival to discharge.

Conclusion

After EMS-witnessed traumatic cardiac arrest, survivors were more likely to be young, female, injured by blunt trauma, and less hypotensive/comatose on-scene. These findings may have implications for ED resuscitation or declaration of care futility and should be further investigated with a prospective multicenter study.

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Funding

No funding was received for this study.

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Correspondence to Morgan Schellenberg.

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Conflict of interest

Authors Schellenberg, Owattanapanich, Ugarte, Grigorian, Nahmias, Lam, Martin, and Inaba declare that they have no conflict of interest.

Ethical approval

All procedures performed in this retrospective observational study involving human participants were in accordance with the ethical standards of the Institutional Review Board of the University of California (HS-22-00061) and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.

Informed consent

This study received a waiver for informed consent by the Institutional Review Board of the University of Southern California (HS-22-00061).

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Schellenberg, M., Owattanapanich, N., Ugarte, C. et al. Witnessed prehospital traumatic arrest: predictors of survival to hospital discharge. Eur J Trauma Emerg Surg (2023). https://doi.org/10.1007/s00068-023-02398-3

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