Massive transfusion in trauma: blood product ratios should be measured at 6 hours |
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Authors: | Sisak Krisztian Soeyland Kathleen McLeod Monique Jansen Melanie Enninghorst Natalie Martin Andrew Balogh Zsolt J |
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Affiliation: | Department of Traumatology, Division of Surgery, John Hunter Hospital, Newcastle, New South Wales, Australia. |
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Abstract: | Background: Most potentially preventable haemorrhagic deaths occur within 6 h of injury. Conventionally, blood component therapy delivery is measured by 24‐h cumulative totals and ratios. The study aim was to examine the effect of a massive transfusion protocol (MTP) on early (6 h) balanced component therapy. Methods: An 88‐month retrospective clinical study at a level 1 trauma centre was undertaken, examining consecutive trauma patients receiving ≥10 units of packed red blood cells (PRBCs) within 24 h, before (pre‐MTP) and after implementation of MTP. Demographic data, injury severity score (ISS), abbreviated injury scale (AIS), shock parameters, coagulation profile, the need for surgical intervention (<24 h), mortality and intensive care unit length of stay were collected. The ratios of blood products given by 6 h, by 24 h and the time between administrations of components was collected and analysed. Results: Pre‐MTP and MTP patients had similar demographics, shock severity and initial laboratory findings. Despite MTP patients having had a higher ISS (42 ± 12 versus 36 ± 12, P < 0.05) and AIS head score (2.6 ± 1.8 versus 1.6 ± 2.0, P < 0.05), there was no difference in mortality. Area under the curve (AUC) of the MTP period showed earlier delivery of higher median ratios of fresh frozen plasma (FFP)/PRBC (P= 0.004). Similar findings were found for cryoprecipitate/PRBC and platelet/PRBC ratios. By 24 h, the AUC for FFP/PRBC ratios were no different. Discussion: Implementation of MTP resulted in earlier balanced transfusion. The difference between the FFP/PRBC ratios of the two types of resuscitations levelled by 24 h. The efficacy of component therapy delivery should be measured earlier than 24 h. |
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Keywords: | blood product ratio component therapy massive transfusion protocol shock trauma |
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