Related Experiment Videos
[Daily nutrient intake in hemodialysis].
V Bellizzi1, B R Di Iorio, P Zamboli
1Unita' di Nefrologia e Dialisi, Ospedale di Polla (SA), Italy. vincenzo.bellizzi@tin.it
Summary
Hemodialysis patients often have inadequate nutrient intake, especially on the third day of the interdialysis period. This study shows that reduced daily nutrient intake can lead to body protein wasting and impaired nutritional status, even with normal Protein Nitrogen Appearance (PNA) measurements.
Area of Science:
- Nephrology
- Nutritional Science
- Clinical Medicine
Context:
- Hemodialysis patients require higher nutrient intake but often consume inadequate amounts.
- Protein Nitrogen Appearance (PNA) indirectly estimates protein intake but doesn't capture daily variations.
- Daily nutrient intake and its impact on nutritional status in hemodialysis patients remain largely unknown.
Purpose:
- To estimate the daily nutrient intake in hemodialysis patients.
- To investigate the relationship between daily nutrient intake and nutritional status.
- To identify limitations of current methods (PNA) in assessing nutrient intake.
Summary:
- A longitudinal study tracked 27 hemodialysis patients over one year, measuring daily protein and calorie intake (DPI, DCI), PNA, and weight gain (WG).
- Results revealed significantly reduced daily nutrient intake on the third interdialysis day in some patients (LOW group).
- This reduced intake correlated with decreased weight, lean body mass, serum creatinine, and impaired nutritional markers (serum albumin, reactance, phase angle).
Impact:
- Standard interdialytic PNA measurements may not detect inadequate nutrient intake.
- Daily monitoring of nutrient intake or weight gain, or PNA during longer interdialysis periods, can reveal eating pattern abnormalities.
- Persistent nutrient intake below 0.8 g/kg/day protein and 25 Kcal/kg/day can cause protein wasting and moderate nutritional status impairment in hemodialysis patients.