Anticoagulation Clinical Trial
Official title:
Assessment of Coagulation Factor Levels in LVAD Patients Following Temporary Warfarin Reversal With 4F-PCC
Prospective assessment of vitamin K dependent coagulation factor levels after temporary warfarin reversal in participants with left ventricular assist devices (LAVD).
Prospective evaluation of the levels of the vitamin K dependent coagulation factors 2,7,9,10, and proteins C and S, in patients on warfarin treated with four factor prothrombin complex concentrate (4F-PCC). Participants on vitamin K antagonists (VKA) such as warfarin have suppressed levels that are brought to the normal range with treatment with 4F-PCC to reverse the warfarin effect. The investigators will assess the duration of effect of 4F-PCC on these factor levels in participants with left ventricular assist devices (VAD) requiring temporary reversal of warfarin for invasive procedures that have a risk of bleeding. The investigators will also assess the time to return to therapeutic INR.. ;
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