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Large retrospective propensity matching study looking at mortality in trauma patients based on ALS vs. BLS transport crew found lower mortality in those attended by ALS crews. The matching was “based on patient age, sex, year, ICD-10-CM based injury severity score, mechanism of injury, AIS based body region of injury, EMS characteristics including time with patient and prehospital interventions performed, prehospital vital signs, and trauma center designation.”
This is different than other studies which showed limited difference. other studies have shown improved survival with police “scooping and running” with penetrating trauma patients.
References
Harrison, Julia MD; Bhardwaj, Akshay MS; Houck, Olivia MPH; Sather, Kristiana MD; Sekiya, Ayako MPH; Knack, Sarah MD; Saarunya Clarke, Geetha PhD; Puskarich, Michael A. MD, MSCR; Tignanelli, Chris MD, MSc; Rogers, Lisa MPH; Marmor, Schelomo PhD; Beilman, Greg MD. Emergency medical services level of training is associated with mortality in trauma patients: A combined prehospital and in hospital database analysis. Journal of Trauma and Acute Care Surgery 98(3):p 402-409, March 2025. | DOI: 10.1097/TA.0000000000004540