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Is serum albumin a marker of nutritional status in hemodialysis patients without evidence of inflammation?

Hypoalbuminemia, a strong predictor of morbidity and mortality in hemodialysis patients, can be a consequence of a combination of malnutrition and inflammatory reactions. The purpose of this study was to analyze serum albumin as a marker of nutritional status in maintenance hemodialysis patients with no signs of inflammation. In a cross-sectional study, we selected 40 stable hemodialysis patients with normal levels of C-reactive protein (<0.8 mg/dL). The patients were classified as well nourished (65%) or malnourished (35%) according to the subjective global assessment. No significant differences were observed in serum albumin concentrations (immunoturbidimetric method) between well-nourished (4.3 +/- 0.3 g/dL) and malnourished (4.0 +/- 0.5 g/dL) patients, and the mean values were within the normal range in both groups. Albumin was inversely correlated with age (n=40; r=-0.32; P=0.02) and directly with energy intake (n=28; r=0.43; P=0.04). In this study, serum albumin did not discriminate well-nourished and malnourished hemodialysis patients without evidence of inflammation.