alexa Red-blood-cell to plasma ratios transfused during massive transfusion are associated with mortality in severe multiple injury: a retrospective analysis from the Trauma Registry of the Deutsche Gesellschaft für Unfallchirurgie.
Haematology

Haematology

Journal of Blood Disorders & Transfusion

Author(s): Maegele M, Lefering R, Paffrath T, Tjardes T, Simanski C,

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Abstract BACKGROUND: To test whether an acute transfusion practice of packed red blood cells (pRBC) : fresh-frozen plasma (FFP) 1 : 1 would be associated with reduced mortality in acute bleeding multiply injury. METHODS: Retrospective analysis using the TR-DGU database (Trauma Registry of the Deutsche Gesellschaft für Unfallchirurgie 2002-2006) on primary admissions with substantial injury (Injury Severity Score > 16) and massive transfusion (> 10 pRBCs). Seven hundred thirteen patients were divided into three groups according to the pRBC : FFP ratio transfused, that is, (i) pRBC : FFP > 1.1; (ii) pRBC : FFP 0.9-1.1 (1 : 1); and (iii) pRBC : FFP < 0.9, and mortality rates were compared. RESULTS: Four hundred ninety-seven (69.7\%) of patients were male, the mean age was 40.1 (+/- 18.3) years. Injury characteristics and pathophysiological state upon emergency room arrival were comparable between groups. Out of 713, 484 patients had undergone massive transfusion with pRBC : FFP > 1.1, 114 with pRBC : FFP 0.9-1.1 (1 : 1), and 115 with pRBC : FFP < 0.9 ratios. Acute mortality (< 6 h) rates for pRBC : FFP > 1.1, pRBC : FFP 0.9-1.1 (1 : 1), and pRBC : FFP < 0.9 ratios were 24.6, 9.6 and 3.5\% (P < 0.0001), 24-h mortality rates were 32.6, 16.7 and 11.3\% (P < 0.0001), and 30-day mortality rates were 45.5, 35.1 and 24.3\% (P < 0.001). The frequency for septic complications and organ failure was higher in the pRBC : FFP 0.9-1.1 (1 : 1) group, ventilator days and length of stays for intensive care unit and overall in-hospital were highest in the pRBC : FFP < 0.9 ratio group (P < 0.0005). CONCLUSIONS: An association between pRBC : FFP transfusion ratios and mortality to favour early aggressive FFP administration was observed. Further investigation is necessary prior to recommending routine 1 : 1 or more aggressive FFP use in exsanguinating patients. This article was published in Vox Sang and referenced in Journal of Blood Disorders & Transfusion

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