Bioreactance Cardiac Output Trending Ability in Preterm Infants: A Single Centre, Longitudinal Study-Reference-Cited by-同舟云学术

Bioreactance Cardiac Output Trending Ability in Preterm Infants: A Single Centre, Longitudinal Study

Published:2021 Issue:5 Volume:118 Page:600-608
ISSN:1661-7800
Container-title:Neonatology
language:en
Short-container-title:Neonatology

Author:

Van Wyk Lizelle^ORCID,Smith Johan^ORCID,Lawrenson John,Lombard Carl J.^ORCID,de Boode Willem-Pieter

Abstract

Introduction: It is unknown whether bioreactance (BR) can accurately track cardiac output (CO) changes in preterm neonates. Methods: A prospective observational longitudinal study was performed in stable preterm infants (<37 weeks) during the first 72 h of life. Stroke volume (SV) and CO, as measured by BR and transthoracic echocardiography, were compared. Results: The mean gestational age (GA) was 31.3 weeks and mean birth weight (BW) was 1,563 g. Overall, 690 measurements were analysed for trending ability by 4-quadrant and polar plots. For non-weight-indexed measurements, 377 (54.6%) lay outside the 5% exclusion zone, the concordance rate was poor (77.2%) with a high mean angular bias (28.6°), wide limits of agreement and a poor angular concordance rate (17.4%). Neither GA, BW nor respiratory support mode affected trending data. Patent ductus arteriosus, postnatal age, and CO level had variable effects on trending data. Trending data for 5 and 10% exclusion zones were also compared. Conclusion: The ability of BR to track changes in CO is not interchangeable with CO changes as measured by echocardiography. BR, as a trend monitor for changes in CO or SV to determine clinical decisions around interventions in neonatology, should be used with caution.

Publisher

S. Karger AG

Subject

Developmental Biology,Pediatrics, Perinatology, and Child Health

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