Objective: Dialysis patients have a higher incidence of stroke, and outcomes are often poor. Diabetic nephropathy (DN) is a stroke risk-factor, but the importance is unclear in dialysis patients. This study investigated the stroke features and risk factors in hemodialysis (HD) patients.
Methods: All end-stage renal disease patients undergoing HD at Teraoka Memorial Hospital dialysis center were identified, with 195 recruited. Baseline clinical characteristics were collected, and the clinical outcomes and related factors of stroke in HD patients were retrospectively analyzed. The incidence rate of stroke and mortality were calculated using Kaplan-Meier survival analysis. Factors potentially related to stroke were analyzed by the log-rank test and Cox proportional hazards model for univariate and multivariate analysis.
Results: In total, 21.0% (41 of 195) patients developed stroke. The incidence rates of stroke per 1000 patient-years were 53.6, 65.2, and 34.0 in all HD patients, DN patients, and non-DN patients, respectively. The cumulative incidence rates of stroke in all HD patients, DN patients, and non-DN patients per 5 years, and per 10 years were 22.6%, 43.5%; 28.8%, 59.6%; and 17.6%, 31.1%, respectively. The incidence rate of stroke in the DN patients was significantly higher than in the non-DN patients (P = .013). DN was the significant risk factor for stroke by multivariate analysis (hazard ratio 2.63, 95% confidence interval 1.08-7.85; P = .032).
Conclusions: This study revealed the trends of stroke in HD patients at a single institution in Japan. DN was shown to be a significant risk factor for stroke in HD patients.
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