Abstract
Hypofibrinogenaemia is a common complication of multiple trauma with severe traumatic brain injury (Abbreviated Injury Scale score of the head ≥4; body ≥3). In Japan, neither fibrinogen concentrate nor cryoprecipitate is permitted to treat acquired hypofibrinogenaemia with the purpose of rapidly restoring a haemostatic level of fibrinogen. The aim of this study was to investigate transfusion usage and mortality in patients with multiple trauma and severe traumatic brain injury who were given a cryoprecipitate prepared in-house, comparing those administered the product early or later. We prepared and produced cryoprecipitate from fresh-frozen plasma beginning in March 2013. We performed a retrospective cohort study of patients admitted to our single tertiary medical centre with severe multiple trauma with traumatic brain injury from March 2013 to June 2018, sorting them into those given the cryoprecipitate infusion within 90 minutes of admission (Early group) and those given it more than 90 minutes after admission (Late group). Clinical outcomes were compared between the two groups using chi-square or Fisher's exact tests and the Wilcoxon test as appropriate. There were 26 and 16 patients in the Early and Late groups, respectively. The 24-hour mortality tended to be lower in the Early group than in the Late group (8 vs 13%, respectively). The patients were more severely anaemic and thrombocytopenic after haemostatic therapy in the Late group than in the Early group. Transfusion usage in the Early group was lower than that in the Late group (red blood cells: 7±1 units vs 17±3 units, p<0.05; fresh-frozen plasma: 9±1 units vs 16±3 units, p<0.05; platelet concentrate: 3±1 units vs 15±4 units, p<0.05, respectively). Early administration of an in-house cryoprecipitate may reduce transfusion usage in patients with multiple trauma with severe traumatic brain injury.
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