ArticleResearch and practice in thrombosis and haemostasis2026
Prevalence of abnormal uterine bleeding and quality of life after venous thromboembolism by oral anticoagulant use: the GENB-OAC Study.
Article in Research and practice in thrombosis and haemostasis, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Anticoagulants cause abnormal uterine bleeding (AUB) in women of reproductive age with venous thromboembolism, but the safety profiles of oral anticoagulants (OACs) in this setting are unclear. Objectives: To analyze and compare the prevalence of AUB and quality of life (QoL) in 4 groups (rivaroxaban, apixaban, vitamin K antagonists [VKAs], and controls). Methods: The GENital Bleeding Oral AntiCoagulant (GENB-OAC) study was a national, multicenter, observational, cross-sectional study conducted in 10 French hospitals from 2018 to 2022. The primary outcome was the proportion of women with major genital bleeding and/or clinically relevant non-major genital bleeding and/or pictorial blood loss assessment chart score >100. Results: Overall, 445 women were included: 122 on apixaban, 123 on rivaroxaban, 81 taking VKAs, and 119 healthy controls. The primary genital bleeding endpoint was significantly higher in OAC vs control group (94.8% vs 82.4%; Conclusion: AUB is frequent in women of reproductive age. OACs increase AUB and impact women's QoL. Apixaban is associated with less AUB than rivaroxaban or VKAs with no difference in QoL. An international consensus is necessary to help clinicians detect and treat AUB in OAC users.
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