Tranexamic acid in trauma patients in the emergency department: systematic review and meta-analysis.

Objectives: The aim of this systematic review and meta-analysis was to evaluate the efficacy (mortality and functional status) and safety of emergency department (ED) use of tranexamic acid (TXA) in patients with severe trauma.
Material and Methods: MEDLINE, Embase, the Cochrane Library, the Web of Science, and ClinicalTrials.gov were searched to find relevant clinical trials published between January 1, 2008, and 1 August, 2018. The selected trials included trauma patients who received infusions of TXA within 8 hours. We extracted patient-related clinical variables and treatment variables. The main outcomes were mortality and functional status.
Results: Five clinical trials were included in the systematic review. Four of them (20 697 patients) were included in the metaanalysis. We found that TXA versus placebo was associated with lower mortality (OR, 0.89 [95% CI, 0.83-0.96]; P = .004; 2 = 0%) and better functional status (OR, 0.60 [95% CI, 0.39-0.94]; P = .02; I2 = 0%). However, intensive care unit stays were longer in patients administered TXA (mean difference, 2.55 days [95% CI, 0.04-5.06 days]; P = .05; I2 = 0%).
Conclusion: ED infusion of TXA decreases mortality after severe trauma and improves patients' functional status.