Renal Function and the Risk of Stroke and Bleeding in Patients With Atrial Fibrillation [Clinical Sciences]

Background and Purpose—We sought to determine the risk of stroke/thromboembolism and bleeding associated with reduced renal function in patients with atrial fibrillation and the risk of stroke and bleeding associated with warfarin treatment in specific estimated glomerular filtration rate (eGFR) groups.Methods—We conducted a register-based cohort study and included patients discharged with nonvalvular atrial fibrillation from 1997 to 2011 with available eGFR.Results—A total of 17 349 patients were identified with eGFR available at baseline. All levels of lower eGFR were associated with higher risk of stroke/thromboembolism and bleeding. Use of warfarin was associated with higher bleeding risk in all eGFR groups; hazard ratios 1.23 (95% confidence interval [CI], 0.97–1.56), 1.26 (95% CI, 1.14–1.40), 1.18 (95% CI, 1.07–1.31), 1.11 (95% CI, 0.87–1.42), 2.01 (95% CI, 1.14–3.54) in patients with eGFR ≥90, 60 to 89, 30 to 59, 15 to 29, and

Source: Stroke - October 23, 2016 Category: Neurology Authors: Bonde, A. N., Lip, G. Y. H., Kamper, A.–L., Fosbol, E. L., Staerk, L., Carlson, N., Torp–Pedersen, C., Gislason, G., Olesen, J. B. Tags: Atrial Fibrillation Original Contributions Source Type: research