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Related Experiment Videos

Nutritional assessment in the critically ill.

J H Downs1, A Haffejee

  • 1Dietetics Department, King Edward VIII Hospital, Durban, South Africa. downsj@med.und.ac.za

Current Opinion in Clinical Nutrition and Metabolic Care
|November 24, 1999
PubMed
Summary

Recent advances in nutritional assessment focus on user-friendly, disease-specific subjective global assessments due to the lack of a gold standard. Future developments in bioelectrical impedance may improve body composition analysis.

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Area of Science:

  • Clinical Nutrition
  • Body Composition Analysis

Background:

  • No absolute gold standard exists for nutritional assessment.
  • Need for clinically relevant and user-friendly assessment tools.

Purpose of the Study:

  • To review recent developments in nutritional assessment.
  • To highlight the utility of subjective global assessments.
  • To explore the potential of bioelectrical impedance analysis.

Main Methods:

  • Review of current nutritional assessment techniques.
  • Focus on subjective global assessment (SGA) tools.
  • Discussion of dual-frequency bioelectrical impedance analysis (BIA) models.

Main Results:

  • Subjective global assessments are effective and user-friendly.

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  • Disease-specific SGA tools have been developed.
  • Dual-frequency BIA shows promise for improved body composition accuracy.

    • Conclusions:

    • Acceptance of no gold standard drives development of practical assessment tools.
    • Subjective global assessments represent a significant advancement.
    • Further research into bioelectrical impedance models is warranted for precise body composition changes.