Bioimpedance Guided Fluid Management in Peritoneal Dialysis

Author:

Tian Na,Yang XiaoORCID,Guo Qunying,Zhou Qian,Yi Chunyan,Lin Jianxiong,Cao Peiyi,Ye Hongjian,Chen Menghua,Yu Xueqing

Abstract

Background and objectivesBioelectrical impedance analysis (BIA) devices can help assess volume overload in patients receiving maintenance peritoneal dialysis. However, the effects of BIA on the short-term hard end points of peritoneal dialysis lack consistency. This study aimed to test whether BIA-guided fluid management could improve short-term outcomes in patients on peritoneal dialysis.Design, setting, participants, & measurementsA single-center, open-labeled, randomized, controlled trial was conducted. Patients on prevalent peritoneal dialysis with volume overload were recruited from July 1, 2013 to March 30, 2014 and followed for 1 year in the initial protocol. All participants with volume overload were 1:1 randomized to the BIA-guided arm (BIA and traditional clinical methods) and control arm (only traditional clinical methods). The primary end point was all-cause mortality and secondary end points were cardiovascular disease mortality and technique survival.ResultsA total of 240 patients (mean age, 49 years; men, 51%; diabetic, 21%, 120 per group) were enrolled. After 1-year follow-up, 11(5%) patients died (three in BIA versus eight in control) and 21 patients were permanently transferred to hemodialysis (eight in BIA versus 13 in control). The rate of extracellular water/total body water decline in the BIA group was significantly higher than that in the control group. The 1-year patient survival rates were 96% and 92% in BIA and control groups, respectively. No significant statistical differences were found between patients randomized to the BIA-guided or control arm in terms of patient survival, cardiovascular disease mortality, and technique survival (P>0.05).ConclusionsAlthough BIA-guided fluid management improved the fluid overload status better than the traditional clinical method, no significant effect was found on 1-year patient survival and technique survival in patients on peritoneal dialysis.

Funder

National Key Research and Development

Guangdong Science Foundation of China

Guangzhou Committee of Science and Technology, China

Science and Technology Planning Project of Guangdong Province of China

NingXia Medical University

Natural Science Foundation of NingXia Province

Publisher

American Society of Nephrology (ASN)

Subject

Transplantation,Nephrology,Critical Care and Intensive Care Medicine,Epidemiology

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