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Updated: Aug 12, 2026

Measurement of Factor V Activity in Human Plasma Using a Microplate Coagulation Assay
Published on: September 9, 2012
Recombinant factor VIIa to treat bleeding after cardiac surgery in an infant
Joseph D Tobias1, John W Berkenbosch, Pierantonio Russo
1Department of Anesthesiology, University of Missouri, Columbia, MO, USA.
Objective:
The authors present the use of synthetic factor VIIa to treat bleeding after cardiopulmonary bypass and surgical repair of an atrial septal defect in an infant with trisomy 10 and pulmonary hypertension.
Design:
Case report.
Setting:
University-affiliated pediatric intensive care unit.
Patients:
A 4-mo-old, 3.7-kg infant.
Main Results:
After a single dose of synthetic factor VIIa, there was normalization of the prothrombin and partial thromboplastin time and cessation of bleeding.
Conclusion:
The potential benefits of synthetic factor VIIa when compared with conventional therapy with fresh frozen plasma are discussed. Previous experience with synthetic factor VIIa in pediatric-aged patients and the cardiothoracic surgical population is presented.
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