The effect of FFP:RBC ratio on morbidity and mortality in trauma patients based on transfusion prediction score

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Abstract
Background and Objectives  The empiric use of a high plasma to packed red‐blood‐cell [fresh frozen plasma:red‐blood‐cells (FFP:RBC)] ratio in trauma resuscitation for patients with massive bleeding has become well accepted without clear or objective indications. Increased plasma transfusion is associated with worse outcome in some patient populations. While previous studies analyse only patients who received a massive transfusion, this study analyses those that are at risk to receive a massive transfusion, based on the trauma‐associated severe haemorrhage (TASH) score, to objectively determine which patients after severe trauma would benefit or have increased complications by the use of a high FFP:RBC ratio.Methods  Multicentre retrospective study from the Trauma Registry of the German Trauma Society. Multivariate logistic regression and statistical risk adjustments utilized in analyses.Results  A high ratio of FFP:RBC in the ≥15 TASH group was independently associated with survival, with an odds ratio of 2·5 (1·6–4·0), while the P < 0·005).Conclusions  A predictive model of massive transfusion upon admission might be able to rapidly identify which severe trauma patients would benefit or have increased complications from the immediate application of a high ratio of FFP:RBCs. This study helps to identify the appropriate population for a prospective, interventional trial.