Influence of neonatal endotracheal tube dimensions on oscillometry-acquired reactance: a bench study

Rosemijne R.W.P. Pigmans*, Ruud W. van Leuteren, Anouk W.J. Scholten, Chiara Veneroni, Anton H. van Kaam, Jeroen Hutten, Raffaele L. Dellacà, Frans H.C. de Jongh

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

6 Citations (Scopus)
97 Downloads (Pure)

Abstract

Objective: To examine the influence of the endotracheal tube (ETT) on respiratory reactance (Xrs) measured with the forced oscillation technique (FOT) and develop a correction method for it.

Approach: In a bench study, the reactance of ETTs (Xtube) with different dimensions was measured on a breathing test lung in various respiratory settings.

Main results: Xtube can be accurately predicted by a fitted formula, with an R2 of 0.97, with negligible effects due to changes in respiratory pattern and lung volume.

Significance: The developed formula offers the ability to measure ETT-independent Xrs values of patients, improving the potential of FOT for lung function testing in mechanically ventilated newborns.

Original languageEnglish
Article number01NT01
JournalPhysiological measurement
Volume44
Issue number1
DOIs
Publication statusPublished - 31 Jan 2023

Keywords

  • UT-Hybrid-D
  • Mechanical ventilation
  • Oscillometry
  • Respiratory mechanics
  • Infants

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