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. 2025 Jul 24.
doi: 10.1055/a-2650-7959. Online ahead of print.

How to Manage Venous Thromboembolism Risk during Pregnancy in Patients with Inherited Antithrombin Deficiency?

Affiliations

How to Manage Venous Thromboembolism Risk during Pregnancy in Patients with Inherited Antithrombin Deficiency?

Laetitia Mauge et al. Thromb Haemost. .

Abstract

Inherited antithrombin deficiency (ATD) is associated with a high risk of venous thromboembolic complications. Association of ATD with other conditions such as pregnancy obviously increases thromboembolic risk and may require anticoagulant therapy for prevention. Although there are several/heterogenous international guidelines regarding thromboprophylaxis in pregnant patients with ATD, data on anticoagulant prophylaxis in this context are scarce in the literature. Thus, this situation remains a challenge both in the antepartum period and during delivery. Physicians from the French Society of Thrombosis and Haemostasis (SFTH) performed a review of the literature to suggest propositions regarding the management of thrombosis prevention based on anticoagulation and antithrombin substitution in ATD pregnant women. In this review, after reporting the thrombotic risk associated with ATD, the indication of anticoagulant therapy, its dosing regimen and monitoring, and the indication of antithrombin concentrates during pregnancy and the postpartum period are discussed as well as peripartum management. Finally, this work confirms the complex management of thrombotic prevention in pregnant patients with ATD. Indeed, it requires to take into account a multiplicity of features cited in our propositions that will hopefully provide some help in this field. This work also highlights the importance of multidisciplinary discussions for pregnant women with ATD who should be counseled in an expert center including hematologist, obstetrician, and anesthetist to optimize their management.

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Conflict of interest statement

N.G. discloses consulting fees or travel awards by Bayer, Bristol-Myers Squibb/Pfizer, LEO-Pharma, LFB, Werfen, and Stago Diagnostica. L.S. reports receiving lecture fees from Norgine, and lecture and consulting fees from Ferring Pharmaceuticals, GlaxoSmithKline, Pfizer, Organon, and Bayer. N.T. discloses consulting fees from Sanofi and Viatris.

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