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Updated: Sep 7, 2026

Measurement of Factor V Activity in Human Plasma Using a Microplate Coagulation Assay
Published on: September 9, 2012
Thrombophilia and activated protein C resistance
C H Selzman1, T A Whitehill, W C Krupski
1Section of Vascular Surgery, University of Colorado Health Sciences Center, Denver, CO, USA.
In addition to classic vascular insults such as inflammation, trauma, malignancy, and surgery, a number of hereditary coagulation defects predispose patients to a wide array of thrombotic complications. A novel genetic defect in factor V allowing for resistance to its cleavage by activated protein C has recently been implicated in a significant number of cases of familial thrombophilia. A brief case report and review of the literature is presented to familiarize surgeons to this important and quite frequent cause of hypercoagulability.
In addition to classic vascular insults such as inflammation, trauma, malignancy, and surgery, a number of hereditary coagulation defects predispose patients to a wide array of thrombotic complications. A novel genetic defect in factor V allowing for resistance to its cleavage by activated protein C has recently been implicated in a significant number of cases of familial thrombophilia. A brief case report and review of the literature is presented to familiarize surgeons to this important and quite frequent cause of hypercoagulability.
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