Aims: Evidence supporting the prescription of anticoagulant therapy for patients with atrial fibrillation (AF) with advanced chronic kidney disease (CKD) has been limited, and its clinical application in this context remains controversial.
Methods: We identified AF patients with advanced CKD (G4-G5) and a history of stroke who were admitted to the First Affiliated Hospital of Dalian Medical University between January 1, 2011, and June 30, 2023. Patients were classified into warfarin, non-vitamin K antagonist oral anticoagulant (NOAC), antiplatelet therapy, and control (no antithrombotic therapy) groups. We evaluated the benefits and safety of different antithrombotic therapies by comparing the long-term clinical outcome measures, including the incidence of subsequent ischemic stroke events, bleeding, and all-cause death.
Results: In total, 570 patients were included. In this cohort, 87 (15.3%) patients had no antithrombotic treatment, 252 (44.2%) received antiplatelet therapy, 105 (18.4%) received warfarin, and 126 (22.1%) received NOAC therapy. Compared with patients without treatment, we found that treatment with anticoagulant therapy significantly decreased the risk of ischemic stroke, but antiplatelet therapy did not. Treatment with anticoagulant therapy was associated with significantly lower mortality than no antithrombotic therapy or antiplatelet therapy , at least within the study period. Furthermore, compared with warfarin treatment, patients treated with NOAC therapy showed a significant decrease in the incidence of bleeding risks.
Conclusion: Among AF patients with advanced CKD and prior stroke, receiving anticoagulants resulted in a reduced risk of recurrent ischemic stroke events than no antithrombotic treatment, and lower mortality than no antithrombotic treatment or antiplatelet therapy.
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