• R Sinha, D Roxby, and A Bersten.
• Department of Haematology and Genetic Pathology, School of Medicine, Flinders University, South Australia, Australia. sinh0001@flinders.edu.au
• Transfus Med. 2013 Apr 1;23(2):108-13.

Background And ObjectivesA massive transfusion response (MTR) was introduced in 2007 to provide blood and blood products in a timelier manner. Aim of this study was to determine whether implementation of the MTR was associated with a change in clinical practice or mortality.Materials And MethodsAll MTR activations from 2008 to 2011 were included in the study. Patients who had received a massive transfusion (MT ≥ 10 units RBC in 24 h) as part of the MTR (MT-MTR) were compared with a historical group of MT patients (MT-Pre-MTR) from 2004 to 2006. Blood product usage including fresh frozen plasma (FFP) : RBC and platelet : RBC ratios and mortality were compared between the two groups.ResultsOut of 169 MTR activations, 13 patients (8%) did not use any blood products, 73 (43%) used <10 units of RBC in a 24-h period and 83 received a MT. The median number of units of FFP and platelets transfused in the MT-MTR group were 10 [interquartile range (IQR) 7-17] vs 6 (5-10) [P < 0·001] and 3 (IQR 2-4) vs 2 (IQR 1-3) [P < 0·001] in the MT-Pre-MTR group of patients, respectively. The MT-MTR group received a higher 24-h FFP : RBC ratio (1 : 1·4 vs 1 : 2·4, P < 0·001). Overall mortality between the MT-MTR and MT-Pre-MTR groups (29% vs 23%, P = 0·43) and 90-day mortality was 25% vs 29% (P = 0·40), respectively.ConclusionAlthough there has been a significant change in transfusion practice in MT patients using a MTR, no change in mortality could be documented using such a protocol.© 2013 The Authors. Transfusion Medicine © 2013 British Blood Transfusion Society.

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