Oral anticoagulation improves survival in very elderly Chinese patients with atrial fibrillation: A report from the Optimal Thromboprophylaxis in Elderly Chinese Patients with Atrial Fibrillation (ChiOTEAF) registry,International Journal of Stroke

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Oral anticoagulation improves survival in very elderly Chinese patients with atrial fibrillation: A report from the Optimal Thromboprophylaxis in Elderly Chinese Patients with Atrial Fibrillation (ChiOTEAF) registry
International Journal of Stroke ( IF 6.7 ) Pub Date : 2021-09-22 , DOI: 10.1177/17474930211046743
Yutao Guo _{1,

2} , Agnieszka Kotalczyk _{2,

3} , Jacopo F Imberti _{2,

4} , Yutang Wang ₅ , Gregory Yh Lip _{1,

2,

6} ,

Affiliation

Background

Advancing age is a major risk factor for ischemic stroke in atrial fibrillation. We aimed to evaluate the predictors of all-cause death/any thromboembolism and the impact of oral anticoagulant on clinical outcomes in very elderly (≥85 years) Chinese atrial fibrillation patients.

Methods

The ChiOTEAF is a prospective registry proceeded in 44 sites from 20 provinces in China between October 2014 and December 2018. Outcomes of interest were all-cause mortality, any thromboembolism, major bleeding, and new onset/worsening heart failure.

Results

The eligible cohort for this analysis included 6416 patients and 1215 (18.9%) patients were aged ≥85 years. Only 320 (26.4%) very elderly patients were treated with oral anticoagulant, of whom 205 (64.1%) received non-vitamin K antagonist oral anticoagulants, while antiplatelet therapy was used among 642 (53.1%) very elderly patients. On multivariate analysis, the use of oral anticoagulant was an independent predictor of a lower risk of the composite outcome (OR: 0.46; 95% CI: 0.32–0.66) and all-cause death (OR: 0.47; 95% CI: 0.32–0.69) among these very elderly atrial fibrillation patients.