Explore the critical insights into how blunt and penetrating traumas uniquely impact mortality and endothelial cell damage, as we delve into the findings from three pivotal prehospital clinical trials.
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Mechanism matters: mortality and endothelial cell damage marker differences between blunt and penetrating traumatic injuries across three prehospital clinical trials.
Donohue et al., Sci Rep 2024
DOI: 10.1038/s41598-024-53398-1
Summary of Findings:
The study conducted a secondary analysis on patients from three large prehospital randomized trials to investigate the differences in clinical outcomes and endothelial cell damage markers between blunt and penetrating trauma in patients with hemorrhagic shock. The analysis included 696 patients who met the criteria of having a systolic blood pressure < 70 or 108, and excluded those with both injury types.
Key Results:
- Blunt injury patients exhibited higher mortality rates at 24 hours (18.6% vs. 10.7%) and 30 days (29.7% vs. 14.0%) compared to penetrating injury patients.
- After adjusting for confounders, blunt injury was an independent predictor of 30-day mortality (Hazard Ratio [HR] 1.84) but not for 24-hour mortality.
- Markers of endothelial cell damage such as VEGF, syndecan-1, TM, S100A10, suPAR, and HcDNA were elevated in blunt injury patients.
- No significant difference in multiple organ failure (MOF) rates was observed between the two groups, although blunt injury patients had higher Denver MOF scores.
Importance:
This study highlights the distinct clinical trajectories and biomarker profiles associated with blunt versus penetrating injuries in trauma patients. The findings emphasize the need to consider the mechanism of injury when designing clinical trials, as it can significantly affect mortality outcomes and biological responses to trauma.
Contribution to Literature:
The research contributes to the understanding of how injury mechanisms influence patient outcomes and provides evidence for the inclusion of injury type as a stratification factor in future trauma clinical trials.