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Understanding the coagulopathy of major-obstetric-haemorrhage (MOH) that leads to massive-transfusion (MT) is fundamental to improving outcomes. This study reports on the haematological features and transfusion management of women experiencing MT [defined as transfusion of ≥8 units of red blood cells (RBC) within 24 h of delivery]. One hundred and eighty-one cases [median (interquartile range; IQR) age 33 years (29-36)] were identified from all UK hospitals, using the UK Obstetric Surveillance System between July 2012 and June 2013. The median (IQR) estimated blood loss was 6 l (4·5-8). At presentation, the median platelet count was lowest for placenta accreta, compared with other causes, while the median prothrombin time and fibrinogen were <1·5 × mean normal and <3 g/l, respectively for all aetiologies. Median platelet count and fibrinogen fell to <75 × 10(9) /l and <2 g/l, respectively for all causes during bleeding, except for trauma. The median (IQR) units of RBC, fresh-frozen-plasma (FFP) and cryoprecipitate transfused were 10 (8-14), 6 (4-8) and 2 (2-4), respectively. The median time from the onset of bleeding to delivery of the first RBC unit was significantly shorter for women who delivered via elective caesarean section, compared with others. The coagulopathy of MT during MOH differs significantly depending on its cause, suggesting that more targeted transfusion strategies are required.

Original publication

DOI

10.1111/bjh.13864

Type

Journal article

Journal

Br J Haematol

Publication Date

02/2016

Volume

172

Pages

616 - 624

Keywords

coagulopathy, massive transfusion, obstetric haemorrhage, outcomes, transfusion management, Adult, Blood Transfusion, Female, Fibrinogen, Fluid Therapy, Hemoglobins, Humans, Postpartum Hemorrhage, Pregnancy, Pregnancy Complications, Hematologic, Prothrombin Time, Retrospective Studies, Time Factors, United Kingdom