JOURNAL ARTICLE
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Clinical experience with three-factor prothrombin complex concentrate to reverse warfarin anticoagulation in intracranial hemorrhage.

BACKGROUND AND PURPOSE: The effectiveness of prothrombin complex concentrate (PCC) products available in the United States that contain low levels of factor VII (3-factor PCC) has not been tested. The purpose of this study was to review our experience with 3-factor PCC (Profilnine) in the setting of warfarin-associated intracranial hemorrhage (wICH).

METHODS: In November 2007, we implemented a protocol for reversal of anticoagulation in wICH using Profilnine. Additional treatment with fresh-frozen plasma was at the discretion of the treating physician. Medical records of all patients receiving PCC for wICH between November 1, 2007, and December 7, 2011 were reviewed. Correction of the international normalized rate (INR) was defined as an INR <1.4.

RESULTS: Seventy wICH patients were treated with Profilnine, including 46 (66%) with intraparenchymal hemorrhage, 22 (31%) with subdural hemorrhage, and 2 (3%) with subarachnoid hemorrhage. Mean INR was reduced from 3.36 to 1.96, and in 44 (62.9%) patients the INR corrected to <1.4. Baseline INR ≥3.0 decreased the likelihood of INR correction. Concomitant administration of fresh-frozen plasma (mean, 2.6 U) did not increase the likelihood of INR correction. Seven (10%) patients had serious adverse events during their hospital course, including 2 sudden deaths from suspected pulmonary embolism.

CONCLUSIONS: Reversal of coagulopathy in wICH with Profilnine was incomplete and associated with serious adverse events. In the absence of available 4-factor PCC, options for urgent reversal of anticoagulation in wICH remain limited.

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