Although malnutrition is frequently encountered in maintenance hemodialysis (MHD) patients, a clear method of treating this complication is still lacking. Failure of nutritional support regimens may be due to inadequate support of dietary needs. Therefore, a high vs. standard or low protein/energy dietary regimen was studied in malnourished MHD patients. A total of 18 malnourished MHD patients selected according to subjective global assessment (SGA)-scores and biochemical indicators of malnutrition (serum albumin <40 g/l, cholesterol <200 mg/dl, prealbumin <30 mg/dl; two out of three) were assigned to three treatment groups: (A: 45 kcal/kg/d and 1.5 g protein/kg/d; B: 35 kcal/kg/d and 1.2 g protein/kg/d; C: spontaneous intake supplemented with 10% of mean protein and energy intake). A and B received food supplements at appropriate dosing to reach the targeted nutritional intake. During 3-month follow-up nutrient intake was assessed by repeated 4-day dietary diaries. Compliance and tolerance was good in each group. Weight gain (1.2±0.4 kg) was observed in group A, but not in B and C. Serum albumin levels increased by 1.0±0.5 g/l in group A, but not in B and C. Prealbumin and cholesterol levels were unaffected. Weight change correlated with mean dietary energy intake, but not with mean dietary protein intake. We conclude that prescription of 45 kcal/kg/d and 1.5 g protein/kg/d may be necessary to achieve weight gain and improvement of nutritional indices in malnourished MHD pts. Oral food supplements can be used safely and effectively to increase nutrient intake to high levels in these patients.

Keywords:
Malnutrition, Hemodialysis, Oral nutritional support, Dietary energy requirements, Dietary protein requirements, Dietary protein, Dietary energy, Calories, End-stage renal failure
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2000
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