Unresponsiveness to factor VIII inhibitor bypassing agents during haemostatic treatment for life-threatening massive bleeding in a patient with haemophilia A and a high responding inhibitor

Haemophilia : the Official Journal of the World Federation of Hemophilia
T HayashiA Yoshioka

Abstract

We report a case of haemophilia A with a high responding inhibitor of factor VIII (FVIII) who had a serious retroperitoneal haematoma caused by penetration of a duodenal ulcer. Inhibitor-bypassing therapy was commenced immediately on admission. On the 17th day of treatment with activated prothrombin complex concentrate (APCC; FEIBA, re-bleeding occurred and thrombelastography (TEG) demonstrated resistance to therapy. Treatment was changed to recombinant activated factor VII (rFVIIa; NovoSeven and resulted in clinical improvement together with an improvement in TEG parameters. On the 10th day of continuous infusion with NovoSeven, however, TEG again showed resistance to therapy. FEIBA infusions were re-introduced and TEG results remained satisfactory for 7 days. On day 34, however, further retroperitoneal bleeding was evident and a decline in the haemostatic efficiency of FEIBA was recorded by TEG. NovoSeven was again successfully administered for 7 days. There were no laboratory findings to indicate disseminated intravascular coagulation (DIC), hypercoagulability or abnormal fibrinolysis. The plasma-based clotting tests did not show any additional prolongation on the occasions when the TEG demonstrated unresponsiveness to FEIBA...Continue Reading

Citations

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