Oral anticoagulation for stroke prevention in atrial fibrillation and advanced kidney disease

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The net benefit of oral anticoagulation (OAC) with vitamin K antagonists or direct oral anticoagulants in patients with advanced chronic kidney disease and atrial fibrillation remains uncertain.

We examined the use, efficacy, and safety of OAC in patients with estimated glomerular filtration rate (eGFR) of <30 mL/min/1.73 m2 (including dialysis-treated patients) and atrial fibrillation.

In a retrospective cohort study, patients diagnosed with atrial fibrillation and eGFR of <30 mL/min/1.73 m2 were identified in national Danish registers between 2010 and 2022. Initiation of OAC was identified based on redemption of a relevant prescription. One-year risks of thromboembolic event, major bleeding, and death associated with OAC and no treatment were computed and standardized to the distribution of risk factors in the sample based on hazards determined in multiple Cox regression models adjusted for age and sex.

A total of 3208 patients were included (mean age 80 years, 52.8% males, 20.9% chronic dialysis). OAC was initiated in 1375 (42.9%) patients, of whom 48.1% were vitamin K antagonists and 51.9% were direct oral anticoagulants. One-year risks in nontreated and anticoagulated patients were 4.8% (95% CI, 3.8%-5.7%) and 3.6% (95% CI, 2.8%-4.6%; P = .028) for thromboembolic event, 7.6% (95% CI, 6.6%-8.7%) and 10.5% (95% CI, 9.3%-12.1%; P < .001) for major bleeding, and 36.3% (95% CI, 34.2%-38.3%) and 29.6% (95% CI, 27.6%-31.6%; P < .001) for death, respectively.

In a retrospective study on patients with advanced chronic kidney disease and atrial fibrillation, OAC was associated with overall decreased 1-year risk of thromboembolic event and death offset by increased 1-year risk of major bleeding.
TidsskriftResearch and Practice in Thrombosis and Haemostasis
Udgave nummer2
Antal sider13
StatusUdgivet - 2024

Bibliografisk note

Funding Information:
E.L.F.B., A.-L.K., B.F.-R., and G.G. have no conflicts of interest. J.B.O. received speaker honoraria or consultancy fees from Bayer, Bristol-Myers Squibb, and Pfizer. C.T.-P. received grants from Bayer and Novo Nordisk. N.C. received lecture fees from Bristol-Myers Squibb and AstraZeneca.

Funding Information:
This work was supported by grants from Helsefonden (21-B-0387), Arvid Nilssons Fond , Augustinusfonden (19-2397), and the Danish Society of Nephrology . The funders had no role in the design and conduct of the study, collection management, analysis and interpretation of data, preparation, review, or approval of the manuscript, and decision to submit the manuscript for publication.

Publisher Copyright:
© 2024 The Author(s)

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