PMID: 8592598Oct 1, 1995Paper

Caloric rather than protein deficiency predominates in stable chronic haemodialysis patients

Nephrology, Dialysis, Transplantation : Official Publication of the European Dialysis and Transplant Association - European Renal Association
V LorenzoA Torres

Abstract

The monitoring of energy and protein intake is considered fundamental in uraemic patients. However, in the clinical practice only protein ingestion is indirectly evaluated by the protein catabolic rate. In a cross-sectional study we evaluated the relationship between caloric and protein intake of 29 stable chronic haemodialysis patients (18M, 11F, mean age 49 +/- 17 years, 68 +/- 6 months on maintenance haemodialysis), and the validity of protein catabolic rate determination. Normalized protein catabolic rate was obtained according to Sargent's formula, and Watson's equation was used to calculate urea distribution volume. Caloric and protein intake were recorded during a 3-day period, and average daily ingestion of nutrients was calculated using a computerized diet analysis system. A greater reduction of daily energy intake (26.8 +/- 11.9 Kcal/kg bw) than daily protein intake (1.02 +/- 0.4 g/kg bw) was observed. Fifty-nine percent of patients had low protein intake while 86% of patients had lower caloric intake than recommended. An inverse relationship between age and protein (r = -0.65, P < 0.001) or caloric intake (r = -0.67, P < 0.001) was observed. Negative relationships between daily protein (r = -0.60, P < 0.01) and also ...Continue Reading

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