Hyperfibrinolysis is associated with tissue injury in both patients with traumatic brain injury (TBI) and in non-TBI patients. However, tissue hypoperfusion is associated with hyperfibrinolysis in non-TBI patients, but not in patients with TBI. Tissue hypoperfusion may therefore not be essential for the development of hyperfibrinolysis in patients with isolated TBI. We enrolled 111 patients in the TBI group and 126 in the non-TBI group. In both groups, patients with hyperfibrinolysis had more severe injuries and received transfusion more frequently than patients without hyperfibrinolysis.

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