Trauma & major bleeding

Association of Whole Blood With Survival Among Patients Presenting With Severe Hemorrhage in US and Canadian Adult Civilian Trauma Centers

JAMA SurgPublished Retrospective cohort study

Errata to this article were published (JAMA Surg, 1 May 2023 ↗ · 1 May 2023 ↗)

Main finding · MortalityResult — go to the resultHazard ratio 0.63 95% CI 0.41–0.96

Authors' conclusion

In this cohort study, receipt of WB-MTP was associated with improved survival in trauma patients presenting with severe hemorrhage, with a survival benefit found early after transfusion.

Study context

Population
Adult trauma patients with SBP <90 mm Hg, shock index >1 and ≥4 units RBC within 1 hour of emergency department (ED) arrival, level I/II US and Canadian adult civilian trauma centers (ACS TQIP 2017–2018); burns, death within 1 hour and interfacility transfers excluded
Participants
2,785 patients
Exposure
WB-MTP vs MTP alone
Outcome
Survival
Follow-up
24 hours and 30 days
Methodological detailsmulticentre registry
  • Multicentre registry

Main finding

Mortality · 24 hours

Hazard ratio

0.63

95% CI 0.41–0.96

P = 0.03

WB-MTP vs MTP-only
HR 0.63 (95% CI 0.41–0.96); P = 0.03

As reported in the abstract

Observational data: associations, not effects.

Secondary outcomes

OutcomeHR (95% CI)P value
Mortality · 30 daysWB-MTP vs MTP-only · co-primary outcome0.53 (0.31–0.93)P = 0.02

Survival curve

Separation within 5 hours of ED presentation

Parts of this Brief are withheld: the automatic checks could not confirm them against the abstract.

Original publication

Association of Whole Blood With Survival Among Patients Presenting With Severe Hemorrhage in US and Canadian Adult Civilian Trauma Centers. JAMA Surg. Published 1 May 2023. doi:10.1001/jamasurg.2022.6978

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