Objective: We investigated the ability of whole body and segmental multiple frequency bioelectrical impedance (MFBIA) to detect peritoneal fluid in peritoneal dialysis patients.
Design: Prospective study.
Setting: Teaching hospital renal unit.
Subjects: Patients on regular peritoneal dialysis.
Interventions: Whole body and segmental MFBIA measurements before and after drainage of peritoneal fluid.
Results: Changes estimated by MFBIA in total body water (-0.4 (0.8) litres) and extracellular water (-0.3 (0.3) litres) were much lower than the actual changes (2.0 (0.4) litres), P<0.0001. Derived resistances Recf and Ricf increased significantly for the trunk but not for total body measurements and changes did not correlate with volumes of fluid drained.
Conclusions: MFBIA is limited in its ability to detect intraperitoneal fluid, using both whole body and segmental techniques.
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| http://dx.doi.org/10.1038/sj.ejcn.1600968 | DOI Listing |
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