Changes in the Risk of Stroke in Dialysis Patients: A Retrospective Analysis over the Last 40 Years

Author:

Aono Toshiya,Shinya YukiORCID,Miyawaki SatoruORCID,Sugiyama Takehiro,Kumagai Isao,Takenobu Atsumi,Shin MasahiroORCID,Saito Nobuhito,Teraoka Akira

Abstract

The stroke incidence in hemodialysis (HD) patients is high, but the associated factors remain largely unknown. This study aimed to analyze stroke incidence in HD patients and changes in risk factors. Data of 291 patients were retrospectively analyzed. The cumulative stroke incidences were 21.6% at 10 years and 31.5% at 20. Diabetic nephropathy (DN) significantly increased overall stroke (hazard ratio (HR), 2.24; 95% confidence interval (CI), 1.21–4.12; p = 0.001) and ischemic stroke (HR, 2.16; 95% CI, 1.00–4.64; p = 0.049). Patients treated with online HDF were less likely to have overall stroke (HR, 0.13; 95% CI, 0.03–0.56; p = 0.006) and ischemic stroke (HR, 0.08; 95% CI, 0.01–0.60; p = 0.014). DN (HR, 1.56; 95% CI, 1.08–2.27; p = 0.019) and age >80 years at HD initiation (20–49 years old; HR 0.13, 95% CI, 0.05-0.35, p < 0.001 and age 50–79 years; HR 0.42, 95% CI, 0.26–0.66, p < 0.001 (reference: age >80 years)) were significantly associated with stroke and/or death events. Over time, stroke risk increased in HD patients, due to the increasing number of DN. Although dialysis technology has advanced over time, these advances could not overcome other risk factors for stroke. Further increase in stroke and mortality due to aging remains a concern.

Publisher

MDPI AG

Subject

Health, Toxicology and Mutagenesis,Toxicology

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