Platelet Hemostatic Capacity (PHC) and Fibrinolytic Inhibitors during Pregnancy
- 1 October 1998
- journal article
- Published by Georg Thieme Verlag KG in Seminars in Thrombosis and Hemostasis
- Vol. 24 (05) , 449-451
- https://doi.org/10.1055/s-2007-996038
Abstract
Platelet hemostatic capacity (PHC) was measured in blood from pregnant patients during all three trimesters using the PFA-100™ system. Closure times were shorter with both cartridge systems during pregnancy, compared to non-pregnant controls, suggesting increased PHC. Thrombin/antithrombin (TAT) complex and prothrombin fragment 1 + 2 (F1+2) levels were elevated during pregnancy and increased over time. Also, plasma levels of plasminogen activator inhibitor 1 and 2 (PAI-1, PAI-2) increased during pregnancy. The data suggest increased coagulability during pregnancy. It is suggested that estrogen may play a role in this state of hypercoagulability. Seven days after delivery all of the measured parameters, except TAT levels, were again within normal range.Keywords
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