• Daniel S Epstein, Biswadev Mitra, Gerard O'Reilly, Jeffrey V Rosenfeld, and Peter A Cameron.
• Emergency & Trauma Centre, The Alfred Hospital, Melbourne, Australia; Department of Epidemiology & Preventive Medicine, Monash University, Melbourne, Australia.
• Injury. 2014 May 1; 45 (5): 819-24.

Background And ObjectivesAcute traumatic coagulopathy (ATC) has been reported in the setting of isolated traumatic brain injury (iTBI) and associated with high mortality and poor outcomes. The aim of this systematic review was to examine the incidence and outcome of patients with ATC in the setting of iTBI.MethodsWe conducted a search of the MEDLINE database and Cochrane library, focused on subject headings and keywords involving coagulopathy and TBI. Design and results of each study were described. Studies were assessed for heterogeneity and the pooled incidence of ATC in the setting of iTBI determined. Reported outcomes were described.ResultsThere were 22 studies selected for analysis. A statistically significant heterogeneity among the studies was observed (p<0.01). Using the random effects model the pooled proportion of patients with ATC in the setting of iTBI was 35.2% (95% CI: 29.0-41.4). Mortality of patients with ATC and iTBI ranged between 17% and 86%. Higher blood transfusion rates, longer hospital stays, longer ICU stays, decreased ventilator free days, higher rates of single and multiple organ failure and higher incidence of delayed injury and disability at discharge were reported among patients with ATC.ConclusionsATC is commonly associated with iTBI and almost uniformly associated with worse outcomes. Any disorder of coagulation above the normal range appears to be associated with worse outcomes and therefore a clinically important target for management. Earlier identification of patients with ATC and iTBI, for recruitment into prospective trials, presents avenues for further research.Copyright © 2014 Elsevier Ltd. All rights reserved.

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