A Longitudinal Study of Thrombosis and Bleeding Outcomes With Thromboprophylaxis in Pregnant Women at Intermediate and High Risk of VTE

BACKGROUND: The efficacy and safety of thromboprophylaxis in pregnancy at intermediate to high risk of venous thrombo-embolism (VTE) is an area of ongoing research.

AIM: This study aimed to assess thrombosis and bleeding outcomes associated with thromboprophylaxis in women at risk of VTE.

METHODS: A cohort of 129 pregnancies, who received thromboprophylaxis for the prevention of VTE, were identified from a specialist obstetric clinic in Johannesburg, South Africa. Intermediate-risk pregnancies, with medical comorbidities or multiple low risks, were managed with fixed low-dose enoxaparin antepartum and for a median (interquartile range) of 4 (4) weeks postpartum. High-risk pregnancies, with a history of previous VTE, were managed with anti-Xa adjusted enoxaparin antepartum and for a median of 6 (0) weeks postpartum. Pregnancy-related VTE was objectively confirmed. Major bleeding, clinically relevant nonmajor bleeding (CRNMB) and minor bleeding were defined according to the International Society on Thrombosis and Hemostasis Scientific Subcommittee.

RESULTS: Venous thrombo-embolism occurred antepartum in 1.4% (95% CI: 0.04-7.7) of intermediate and 3.4% (95% CI: 0.4-11.7) of high-risk pregnancies. Bleeding events occurred in 7.1% (95% CI: 2.4-15.9) of intermediate and 8.5% (95% CI: 2.8-18.7) of high-risk pregnancies. Of these bleeding events, 3.1% (95% CI: 1.0-8.0) were classified as major bleeding. On univariate analysis, no independent predictors of bleeding were identified.

CONCLUSION: The rates of thrombosis and bleeding in this predominantly African population were consistent with similar studies and can be used to inform pregnant women of the benefits of anticoagulation and the risks of potential bleeding.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:29

Enthalten in:

Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/Hemostasis - 29(2023) vom: 27. Jan., Seite 10760296231160748

Sprache:

Englisch

Beteiligte Personen:

Schapkaitz, E [VerfasserIn]
Libhaber, E [VerfasserIn]
Gerber, A [VerfasserIn]
Rhemtula, H [VerfasserIn]
Zamparini, J [VerfasserIn]
Jacobson, B F [VerfasserIn]
Büller, H R [VerfasserIn]

Links:

Volltext

Themen:

Anticoagulants
Bleeding
Enoxaparin
Heparin, Low-Molecular-Weight
Journal Article
Low molecular weight heparin
Pregnancy
Thromboprophylaxis
Venous thromboembolism

Anmerkungen:

Date Completed 29.03.2023

Date Revised 31.03.2023

published: Print

Citation Status MEDLINE

doi:

10.1177/10760296231160748

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM354775138