Abstract:
BACKGROUND:Uncontrollable bleeding is the leading cause of death in traumatically injured patients. The extent to which direct factor Xa inhibitors interfere with the applied resuscitation measures is presently unknown. STUDY DESIGN AND METHODS:In this study, we investigated the effect of the resuscitation fluids saline, albumin, fresh frozen plasma (FFP) and solvent/detergent (S/D)-treated plasma, fibrinogen concentrate, prothrombin complex concentrate (PCC), and combinations thereof on the hemostatic profile of rivaroxaban-anticoagulated whole blood and plasma. We used rivaroxaban-spiked whole blood and plasma from healthy donors, as well as plasma from patients on rivaroxaban, and mimicked a resuscitation approach in a 50% plasma dilution setting. Thromboelastography, thrombin generation, and fibrin generation clot lysis test were assessed using tissue factor to initiate coagulation and tissue plasminogen activator to induce clot lysis. RESULTS:Rivaroxaban resulted in a hypocoagulant state that remained largely unaltered upon subsequent 50% dilution with S/D-treated plasma or FFP. Using S/D-treated plasma as a diluent, clot stability decreased due to its low α2 -antiplasmin. Dilution with saline and albumin induced a profibrinolytic state and further deteriorated the impaired hemostatic potential of rivaroxaban-anticoagulated blood, even after PCC and fibrinogen support. Combined use of plasma (either FFP or S/D treated) and PCC, however, considerably improved both coagulation and clot stability. CONCLUSION:In the setting of rivaroxaban anticoagulation and major blood loss, transfusing plasma together with PCC may provide the most effective resuscitation approach with the notion that additional antifibrinolytic drug support (e.g., tranexamic acid) is likely required.
journal_name
Transfusionjournal_title
Transfusionauthors
Helin TA,Zuurveld M,Manninen M,Meijers JCM,Lassila R,Brinkman HJMdoi
10.1111/trf.14933subject
Has Abstractpub_date
2018-12-01 00:00:00pages
3014-3026issue
12eissn
0041-1132issn
1537-2995journal_volume
58pub_type
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