The Journal of Medical Investigation
Online ISSN : 1349-6867
Print ISSN : 1343-1420
ISSN-L : 1343-1420
Originals
Low resting energy expenditure in middle-aged and elderly hemodialysis patients with poor nutritional status
Miho KogirimaKatsuhiko SakaguchiKohsuke NishinoYoko IchikawaFumie HiramatsuShigeru Yamamoto
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2006 Volume 53 Issue 1,2 Pages 34-41

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Abstract

Due to high resting energy expenditure (REE) in maintenance hemodialysis patients, an increase in energy intake is usually recommended to improve their nutritional status. However, some patients appear to have poor appetite and low energy intake. In such patients low energy metabolism is expected. We hypothesized that in maintenance hemodialysis patients there are two types of the energy metabolism, high and low. This study was aimed at finding the energy metabolism in maintenance hemodialysis patients, especially in those with poor nutritional status.
Subjects were hemodialysis out-patients (34 males and 20 females, mean age 59.1±10.7y). REE was measured by an indirect calorimeter. Protein intake was obtained from normalized protein catabolic rate (nPCR), and physical activity level (PAL) was obtained by time study. Nutritional status assessed by serum albumin concentration was poor (3.7±0.2g/dL) in spite of the adequate protein intake (1.1±0.3g/kg per day). Only 11% of the subjects had appropriate serum albumin concentration. Mean REE was 24.6kcal/kg per day which was lower than that of healthy Japanese (26.5kcal/kg per day). REE and PAL positively correlated with serum albumin concentration (p<0.01). The results suggest that maintenance hemodialysis patients with poor nutritional status may have low REE. J. Med. Invest. 53: 34-41, February, 2006

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© 2006 by The University of Tokushima Faculty of Medicine
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