| Popis: |
Inherited thrombophilias are a heterogeneous group of conditions which have been associated with a variety of pregnancy complications, including early and late fetal loss, intrauterine growth restriction, abruptio placentae, and preeclampsia.1 As the functional significance of the burgeoning list of thrombophilic conditions is better understood, more rational and thoughtful approach to their detection and usefulness in clinical practice will likely emerge. While dominant conditions, such as antithrombin deficiency are rarely present without clinical manifestations, other less thrombogenic mutations, such as factor V Leiden, often are not associated with obvious pregnancy complications, as noted by the finding that the presence of heterozygous factor V Leiden is associated with a 0.2% risk of maternal thromboembolism. Emerging data suggests the quality and quantity of thrombophilic conditions, in addition to genetic and environmental influences create a ‘threshold milieu’ for the clinical manifestation of these heterogeneous prothrombotic conditions. This review will summarize the current knowledge of thrombophilic conditions and their association with first trimester pregnancy outcome. |
