Korean J Nephrol.  2011 May;30(3):269-277.

Hydration Status and Clinical Features in Patients with End-Stage Renal Disease on Regular Hemodialysis

Affiliations
  • 1Department of Internal Medicine, Chungnam National University Hospital, Daejeon, Korea. ytshin@cnu.ac.kr

Abstract

PURPOSE
Maintenance of the normal hydration state is one of the major purposes of hemodialysis therapy in patients with end-stage renal disease. Overhydration is an important and independent predictor of mortality in patients with end-stage renal disease on regular hemodialysis. BCM (body composition monitor, FMC, Germany) reliably enables quantitative assessment of hydration status and body composition. The aims of this study were to investigate the relationship between hydration status and clinical features and the risk factors of overhydration.
METHODS
We measured hydration status and body composition of total 72 patients with end-stage renal disease on regular hemodialysis by BCM from June, 2009 to September, 2009. We also reviewed the clinical characteristics and laboratory findings and comorbidities retrospectively.
RESULTS
The hydration status measured by BCM was correlated well with interdialytic weight gain after 48 hours and 72 hours from last hemodialysis treatment (r=0.42 p<0.001, r=0.38 p<0.01, respectively). There was no statistically significant difference in comorbidities, age, sex, BMI, blood pressure, hypotensive episodes between the patients with overhydrated state (relative hydration status > or =20%) and control patients (relative hydration status <20%). In overhydrated patients, serum iron level was lower than control patients 48 hrs after last hemodialysis (p<0.05).
CONCLUSION
This cross-sectional study showed that hydration status measured by BCM was correlated well with interdialytic weight gain although there was no significant clinical difference between overhydrated and control patients with end-stage renal disease on regular hemodialysis.

Keyword

Body composition; Hemodialysis; ESRD

MeSH Terms

Blood Pressure
Body Composition
Comorbidity
Cross-Sectional Studies
Humans
Iron
Kidney Failure, Chronic
Organothiophosphorus Compounds
Renal Dialysis
Risk Factors
Weight Gain
Iron
Organothiophosphorus Compounds
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