The Elusive Promise of Bioimpedance in Fluid Management of Patients Undergoing Dialysis

Davies, Simon J.

Abstract

There can be little doubt that bioimpedance measurements in patients undergoing dialysis have predictive value. In a systematic review of cohort studies in which multivariable survival models were reported, 32 out of 38 found that overhydration determined by bioimpedance was associated with worse survival independently of other known predictors such as age, comorbidity, and serum albumin (1). Meta-analysis, regardless of the bioimpedance method used, found mortality to be approximately doubled in the top 15% of overhydrated patients. The increased risk is apparently independent of BP and synergistic with inflammation. Surely all we need to do is to use bioimpedance to normalize hydration in the dialysis population and many lives would be improved or prolonged.

Citation

Davies, S. J. (2020). The Elusive Promise of Bioimpedance in Fluid Management of Patients Undergoing Dialysis. Clinical Journal of the American Society of Nephrology, 15(5), 597-599. https://doi.org/10.2215/cjn.01770220

• Journal Article Type: Article
• Online Publication Date: Apr 29, 2020
• Publication Date: 2020-05
• Deposit Date: May 30, 2023
• Journal: Clinical Journal of the American Society of Nephrology
• Print ISSN: 1555-9041
• Electronic ISSN: 1555-905X
• Publisher: American Society of Nephrology
• Peer Reviewed: Peer Reviewed
• Volume: 15
• Issue: 5
• Pages: 597-599
• DOI: https://doi.org/10.2215/cjn.01770220
• Keywords: Transplantation; Nephrology; Critical Care and Intensive Care Medicine; Epidemiology