Impact of high mortality in incident dialysis patients due to hypertensive nephrosclerosis: a multicenter prospective cohort study in Aichi, Japan

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Abstract

Introduction: An increasing number of patients worldwide require dialysis as a result of hypertensive nephrosclerosis (HTN). However, in Japan, mortality in patients with end-stage renal disease (ESRD) has not been well by primary kidney disease including HTN and diabetic nephropathy (DN). Hence, we examined the differences in mortality among the primary kidney diseases of incident dialysis patients. Methods: The study was a multicenter prospective cohort analysis including 1520 incident dialysis patients in Aichi prefecture, Japan. We classified patients into three groups according to the primary kidney disease [i.e., a HTN group, n = 384, a DN group n = 658, and a chronic glomerulonephritis (CGN) group, n = 224]. In addition, we classified patients into the HTN group and the DN group using propensity score matching. We compared outcomes including all-cause and infection-related mortality. Results: The mortality rates of the HTN, the DN, and the CGN group, were 135.9, 64.2, and 34.8 per 1000 patient years, respectively. All-cause mortality and infection-related mortality rates in the HTN group were as high as those in the DN group after adjustment for age, gender, history of cardiovascular disease, and estimated glomerular filtration rate. No significant difference of all-cause mortality was observed after propensity score matching between the two groups (Logrank test: p = 0.523). Conclusions: The present study was Japan’s first large-scale prospective cohort to demonstrate that HTN is the second most common cause of ESRD. In addition, the prognosis of patients with HTN was as poor as that of patients with DN.

Original languageEnglish
Pages (from-to)1360-1370
Number of pages11
JournalClinical and Experimental Nephrology
Volume22
Issue number6
DOIs
Publication statusPublished - 01-12-2018

All Science Journal Classification (ASJC) codes

  • Physiology
  • Nephrology
  • Physiology (medical)

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