Blood pressure variability as an adverse prognostic risk factor in end-stage renal disease.

  • Tozawa M
  • Iseki K
  • Yoshi S
 et al. 
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BACKGROUND: Prospective and case-control studies show that blood-pressure variability is an independent risk factor for severe organ damage and cardiovascular events in hypertensives. We prospectively studied the association between systolic blood pressure variability and cardiovascular mortality and mortality from all causes in end-stage renal disease patients. METHODS AND RESULTS: The subjects were 144 patients (86 men, 58 women; mean age+/-SD, 52+/-13 years) who underwent dialysis in the same dialysis centre and were examined for blood-pressure variability. The study period was 38 months beginning in January 1995, during which six cardiovascular and seven noncardiovascular fatalities occurred. Coefficient of variation in systolic blood pressure in 1994, as an indicator of systolic blood pressure variability, ranged from 7.8 to 14.6%. Cumulative incidence of death from all causes was related to coefficient of variation in systolic blood pressure. The difference between the maximum and minimum systolic blood pressure (deltaSBP) in 1994 ranged from 44 to 146 mmHg (mean+/-SD, 78+/-13 mmHg) and correlated significantly with coefficient of variation in systolic blood pressure (r = 0.65, P

Author-supplied keywords

  • blood pressure
  • haemodialysis
  • kidney
  • risk

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  • M Tozawa

  • K Iseki

  • S Yoshi

  • K Fukiyama

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