• Plos One · Jan 2018

    Stroke risk and outcomes in patients with chronic kidney disease or end-stage renal disease: Two nationwide studies.

    • Yih-Giun Cherng, Chao-Shun Lin, Chun-Chuan Shih, Yung-Ho Hsu, Chun-Chieh Yeh, Chaur-Jong Hu, Ta-Liang Chen, and Chien-Chang Liao.
    • Department of Anesthesiology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.
    • Plos One. 2018 Jan 1; 13 (1): e0191155.

    Background And AimsBecause the risk and outcomes of stroke in patients with chronic kidney disease (CKD) or end-stage renal disease (ESRD) were unclear, we evaluated these risks using a retrospective cohort study and a nested cohort study.MethodsWe used Taiwan's National Health Insurance Research Database to identify 1378 patients aged ≥20 years who had ESRD in 2000-2004. An age- and sex-matched CKD cohort (n = 5512) and a control cohort (n = 11,024) were selected for comparison. Events of incident stroke were considered as outcome during the follow-up period in 2000-2013, and we calculated adjusted hazard ratios (HR) and 95% CIs of stroke associated with CKD or ESRD. We further used matching procedure with propensity score to estimate the risk of stroke for control group, CKD patients, and EDRD patients. A nested cohort study of 318,638 hospitalized stroke patients between 2000 and 2010 also was conducted to analyze the impact of CKD and ESRD on post-stroke mortality.ResultsBefore propensity-score matching, the incidences of stroke for controls, CKD patients and ESRD patients were 6.57, 13.3, and 21.7 per 1000 person-years, respectively. Compared with control group, the adjusted HRs of stroke were 1.49 (95% CI, 1.32-1.68) and 2.39 (95% CI, 1.39-2.87) for people with CKD or ESRD respectively, and were significantly higher in both sexes and every age group. After propensity-score matching, the HRs of stroke for patients with CKD and ESRD were 1.51 (95% CI 1.24-1.85) and 2.08 (95% CI 1.32-3.26), respectively, during the follow-up period. Among hospitalized stroke patients, adjusted rate ratio (RR) of post-stroke mortality in CKD and ESRD cohorts were 1.44 (95% CI, 1.33-1.56) and 2.62 (95% CI, 2.43-2.82) respectively compared with control.ConclusionsCKD and ESRD patient groups thus faced significantly higher risk of stroke and post-stroke mortality. Risk factor identification and preventive strategies are needed to minimize stroke risk and post-stroke mortality in these vulnerable patient groups.

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