PMID: 8941922Dec 1, 1996Paper

Nitrogen balance in hospitalized chronic hemodialysis patients

Kidney International. Supplement
T A IkizlerR M Hakim

Abstract

Malnutrition is an important factor in the increased morbidity and mortality of chronic hemodialysis (CHD) patients. Dietary protein intake necessary to maintain neutral nitrogen balance appears to be higher in CHD patients due to various catabolic effects of the hemodialysis procedure, including nutrient losses and increased energy expenditure. Dietary intake may be further decreased in hospitalized CHD patients. We examined this issue in 18 CHD patients (9 male, 9 female) who were admitted to a regular ward. Daily protein intake (DPI) and daily caloric intake were measured for each patient. In addition, protein catabolic rate (PCR) calculated from interdialytic changes in BUN were calculated. Our results showed that mean (+/- SD) DPI was 0.79 +/- 0.41 g/kg/day, while PCR was 0.93 +/- 0.38 g/kg/day. Dietary protein and energy intake were 66% and 50% of suggested values, respectively, and DPI accounted for only 85% of PCR. Mean nitrogen balance was negative by -2.11 +/- 2.77 g of nitrogen/day (range -9.91 g of nitrogen/day to +3.89 g of nitrogen/day). Biochemical nutritional parameters such as serum albumin, cholesterol, prealbumin and transferrin obtained one week following admission were also indicative of undernutrition (3.1...Continue Reading

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