A1 Refereed original research article in a scientific journal
Inadequate oral anticoagulation with warfarin in women with cerebrovascular event and history of atrial fibrillation: the FibStroke study
Authors: Bah Aissa, Nuotio Ilpo, Palomäki Antti, Mustonen Pirjo, Kiviniemi Tuomas, Ylitalo Antti, Hartikainen Päivi, Airaksinen KE Juhani, Hartikainen Juha EK
Publisher: TAYLOR & FRANCIS LTD
Publication year: 2021
Journal: Annals of Medicine
Journal name in source: ANNALS OF MEDICINE
Journal acronym: ANN MED
Volume: 53
Issue: 1
First page : 287
Last page: 294
Number of pages: 8
ISSN: 0785-3890
eISSN: 1365-2060
DOI: https://doi.org/10.1080/07853890.2021.1875499
Self-archived copy’s web address: https://research.utu.fi/converis/portal/detail/Publication/53302074
Background: Women with atrial fibrillation (AF) may be treated less actively with oral anticoagulation (OAC) than men.Patients and methods: We assessed sex differences in the implementation of stroke risk stratification with CHADS(2) and CHA(2)DS(2)-VASc scores and reasons not to use OAC in 1747 AF patients suffering their first cerebrovascular event after the AF diagnosis.Results: Women were older and had more often a high stroke risk (CHADS(2)/CHA(2)DS(2)-VASc >= 2) than men (p < .001). On admission, 46.4% of women and 48.2% of men were on OAC with no sex difference (p = .437). However, of patients without OAC, 74.4% of women and 49.5% of men should have been on OAC based on CHADS(2)/CHA(2)DS(2)-VASc >= 2 (p < .001). Conversely, 34.8% of men and 17.5% of women on OAC had a low or moderate risk (CHADS(2)/CHA(2)DS(2)-VASc 0-1, p < .001). A valid reason to omit OAC was reported in 38.6% of patients and less often in women (p < .001).Conclusions: OAC was underused in high-risk AF patients, particularly women, but prescribed often in men with low or moderate stroke risk. Reasons for omitting OAC treatment were poorly reported, particularly for women.
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