HIV Wasting:
BIA Studies in HIV-Infected Patients



Useful as a surrogate marker to monitor the effects of disease progression and treatment by tracking changes in body cell mass1
Most sensitive to changes in body water, and therefore, most accurate in estimating body compartments tied to these changes, such as lean body mass2
BIA is a suitable method for assessing body cell mass in HIV-infected patients without opportunistic infections3


1. Kotler DP et al. JPEN J Parenter Enteral Nutr. 1999;23:345-49.
2. Jacobs DO. JPEN J Parenter Enteral Nutr.
1993;17:401-3.
3. Sluys TEM et al. JPEN J Parenter Enteral Nutr. 1993;17:404-6.



• BIA is ideally suited as a surrogate marker to monitor the effects of disease progression and treatment in patients with HIV infection. It is able to do this by tracking changes in body cell mass.1

• Since it most sensitive to changes in body water, it has the most accuracy for estimating body compartments closely tied to these changes, such as lean body mass.2

• The technique is most suitable as a measurement of body cell mass in those patients who do not have opportunistic infections.3

• Unfortunately, BIA is not helpful in detecting those body composition changes found in the fat redistribution syndrome. It is also not able to detect the regional distribution or re-distribution of body fat that is characteristic of lipodystrophy.

References:

1. Kotler DP, Rosenbaum K, Allison DB et al. Validation of bioimpedance analysis as a measure of change in body cell mass as estimated by whole-body counting of potassium in adults. JPEN J Parenter Enteral Nutr. 1999;23:345-9.

2. Jacobs DO. Bioelectrical impedance analysis: a way to assess changes in body cell mass in patients with acquired immunodeficiency syndrome? JPEN J Parenter Enteral Nutr. 1993;17:401-3.

3. Sluys TEM, van der Ende ME, Swart GR et al. Body composition in patients with acquired immunodeficiency syndrome: a validation study of bioelectric impedance analysis. JPEN J Parenter Enteral Nutr. 1993;17:404-6.