[Value of bioelectrical impedance analysis in the assessment of body water in children with nephrotic syndrome: initial results].

The study aims at assessing the value of bioelectrical impedance analysis in estimation of fluid compartments in children with nephrotic syndrome. The study included 23 children aged, 2 and 20.5 y. In 9 children in remission measured parametres were normal. In the group of 14 children with relapses and oedemas, significantly higher TBW and ECM/BCM were observed. These parameters decreased during the course of disease with clinical improvement, but did not reach normal levels at the disappearance of oedemas. BIA is a simple, non-invasive and valuable method for assessment of total body water and fluid compartments.