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  • Title: Increased risk of stroke in patients with chronic kidney disease after recurrent hypoglycemia.
    Author: Yu TM, Lin CL, Chang SN, Sung FC, Kao CH.
    Journal: Neurology; 2014 Aug 19; 83(8):686-94. PubMed ID: 25031280.
    Abstract:
    OBJECTIVE: In this study, we aimed to investigate the effect of hypoglycemia on cardiovascular outcomes in a sample of patients with chronic kidney disease (CKD). METHODS: Information about study participants was extracted from the National Health Insurance Research Database of Taiwan for the years 1998 through 2008. We conducted this retrospective cohort study of patients with CKD, with and without hypoglycemia, to evaluate the risk of overall mortality and cardiovascular complications including stroke, coronary heart disease, and congestive heart failure in both groups. RESULTS: This study included 46,135 patients with CKD, of whom 2,117 (4.59%) were hospitalized and had hypoglycemia. Results of multivariate Cox proportional hazard regression analyses indicated that stroke (hazard ratio [HR] = 1.62, 95% confidence interval [CI] = 1.29-2.03), coronary heart disease (HR = 1.25, 95% CI = 1.00-1.57), congestive heart failure (HR = 1.49, 95% CI = 1.13-1.98), and death (HR = 2.53, 95% CI = 1.99-3.21) were associated with hypoglycemia in patients with CKD. Recurrent episodes of hypoglycemia were associated with a higher risk of death (HR = 33.0, 95% CI = 22.3-48.8 for >2 episodes, p for trend <0.0001), and a similar trend was observed for other multiple cardiovascular events. We observed an increased risk of stroke and overall mortality in patients with hypoglycemia compared to those without hypoglycemia, regardless of whether the patient had diabetes. CONCLUSIONS: CKD was associated with a higher risk of stroke and mortality in patients with hypoglycemia. Recurrent hypoglycemia considerably increased the risk of stroke and overall mortality in patients with CKD regardless of whether they had diabetes. These results suggest that hypoglycemia has a crucial role in stroke and death in patients with CKD.
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