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Effect of peritoneal dialysate on bioelectrical impedance analysis variability in pediatric patients receiving

Natthida Prukngampun1, Narumon Densupsoontorn2, Anirut Pattaragarn1

  • 1Division of Nephrology, Department of Pediatrics, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.

Pediatric Nephrology (Berlin, Germany)
|November 16, 2023
PubMed

Insights

Bioelectrical impedance analysis (BIA) measurements in children on peritoneal dialysis are accurate whether or not dialysate is present. This finding supports collecting BIA data irrespective of dialysate status in pediatric patients.

Area of Science:

  • Pediatric Nephrology
  • Body Composition Analysis
  • Bioelectrical Impedance Analysis

Background:

  • Conflicting adult study results exist on bioelectrical impedance analysis (BIA) accuracy with or without peritoneal dialysate.
  • Accurate body composition assessment is crucial for pediatric patients with chronic kidney disease.

Purpose of the Study:

  • To investigate if the accuracy of bioelectrical impedance analysis (BIA) data in children differs between measurements taken with (D+) and without (D-) peritoneal dialysate.
  • To determine the reliability of BIA for assessing body composition in pediatric patients undergoing peritoneal dialysis.

Main Methods:

  • Cross-sectional study of children (3-18 years) with chronic kidney disease stage 5 on peritoneal dialysis.
  • Multifrequency bioelectrical impedance analysis (BIA) used for body composition assessment.
  • Comparison of BIA values between D+ and D- measurements using intraclass correlation coefficient (ICC).

Main Results:

  • Fifty paired BIA measurements from 18 pediatric patients were analyzed.
  • Excellent correlations (ICC > 0.95) observed for 94.1% of BIA parameters between D+ and D- measurements.
  • Trends of increased fluid status and soft lean mass in D+ measurements; stronger correlations in patients older than 10 years.

Conclusions:

  • The presence of peritoneal dialysate does not significantly affect the accuracy of most bioelectrical impedance analysis (BIA) parameters in children.
  • Bioelectrical impedance analysis (BIA) measurements can be reliably collected regardless of dialysate presence in pediatric patients.
  • Age influences the correlation strength, with older children showing better agreement between D+ and D- BIA measurements.
Abstract

Keywords:
Bioelectrical impedance analysisBody compositionPediatricsPeritoneal dialysis

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