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Intensive Care Medicine

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01-04-2007 | Pediatric Brief Report

Effects of open endotracheal suction on lung volume in infants receiving HFOV

Authors: D. G. Tingay, B. Copnell, J. F. Mills, C. J. Morley, P. A. Dargaville

Published in: Intensive Care Medicine | Issue 4/2007

Abstract

Objective

To describe the pattern and magnitude of lung volume change during open endotracheal tube (ETT) suction in infants receiving high-frequency oscillatory ventilation (HFOV).

Design

Prospective observational clinical study.

Setting

Tertiary neonatal intensive care unit.

Patients and participants

Seven intubated and muscle-relaxed newborn infants receiving HFOV.

Interventions

Open ETT suction was performed for 6 s at −100 mmHg using a 6-F catheter passed to the ETT tip after disconnection from HFOV. The HFOV was then recommenced at the same settings as prior to ETT suction.

Measurements and results

Change in lung volume (ΔV _L) referenced to baseline lung volume before suction was measured with a calibrated respiratory inductive plethysmography recording from 30 s before until 60 s after ETT suction. In all infants ETT suction resulted in significant loss of lung volume. The mean ΔV _L during suctioning was −13 ml/kg (SD 4 ml/kg) (p < 0.0001 vs. baseline, repeated-measures ANOVA), with a mean 76.5% (SD 14.1%) of this volume loss being related to circuit disconnection. After recommencing HFOV lung volume was rapidly regained with mean ΔV _L at 60 s being 1 ml/kg (SD 4 ml/kg) below baseline (p > 0.05, Tukey post-test).

Conclusions

Open ETT suction caused a significant but transient loss of lung volume in muscle-relaxed newborn infants receiving HFOV.

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Title: Effects of open endotracheal suction on lung volume in infants receiving HFOV
Authors: D. G. Tingay
B. Copnell
J. F. Mills
C. J. Morley
P. A. Dargaville
Publication date: 01-04-2007
Publisher: Springer-Verlag
Published in: Intensive Care Medicine / Issue 4/2007
Print ISSN: 0342-4642
Electronic ISSN: 1432-1238
DOI: https://doi.org/10.1007/s00134-007-0541-2

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Effects of open endotracheal suction on lung volume in infants receiving HFOV

Abstract

Objective

Design

Setting

Patients and participants

Interventions

Measurements and results

Conclusions

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Objective

Design

Setting

Patients and participants

Interventions

Measurements and results

Conclusions

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