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Updated: Feb 25, 2026
Evaluation of Fluid Overload by Bioelectrical Impedance Vectorial Analysis
Published on: August 17, 2022
Thoracic fluid content by electric bioimpedance correlates with respiratory distress in newborns
G Paviotti1, A De Cunto1, V Moressa2
1Division of Neonatology, Department of Perinatal Medicine, Institute for Maternal and Child Health-IRCCS 'Burlo Garofolo', Trieste, Italy.
Objective:
The objective of the study was to compare thoracic fluid content (TFC) between newborn infants with and without respiratory distress. We tested the hypothesis that TFC would be higher in infants with respiratory distress.
Study Design:
A total of 96 newborn infants, gestational age 37.9 (2.6) weeks, were enrolled at birth. TFC by electrical bioimpedance was recorded within 3 h after birth (TFC1) and at 24 h of life (TFC2).
Results:
TFC1 was higher in infants with respiratory distress at birth (76.8 (24.9) versus 61.6 (16.1) 1 KOhm-1, P<0.0005). The association was independent from gestational age and mode of delivery. TFC2 was independently associated with respiratory distress at 24 h of life (adjusted coefficient b=0.5 (s.d. 0.02), P=0.02).
Conclusion:
TFC by electric bioimpedance independently correlated with the presence of respiratory distress at birth and at 24 h of life in late preterm and term newborn infants.
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