Respiratory function in healthy young children using forced oscillations

Hall, Graham L., Sly, Peter D., Fukushima, Takayoshi, Kusel, Merci M., Franklin, Peter J., Horak, Friedrich, Patterson, Hilary, Gangell, Catherine and Stick, Stephen M. (2007) Respiratory function in healthy young children using forced oscillations. Thorax, 62 6: 521-526. doi:10.1136/thx.2006.067835


Author Hall, Graham L.
Sly, Peter D.
Fukushima, Takayoshi
Kusel, Merci M.
Franklin, Peter J.
Horak, Friedrich
Patterson, Hilary
Gangell, Catherine
Stick, Stephen M.
Title Respiratory function in healthy young children using forced oscillations
Journal name Thorax   Check publisher's open access policy
ISSN 0040-6376
1468-3296
Publication date 2007-06
Sub-type Article (original research)
DOI 10.1136/thx.2006.067835
Volume 62
Issue 6
Start page 521
End page 526
Total pages 6
Place of publication London, United Kingdom
Publisher B M J Group
Language eng
Abstract Background: Monitoring of respiratory function is important in the diagnosis and management of respiratory disease. The forced oscillation technique requires minimal patient cooperation and is ideal for the determination of respiratory function in young children. This study aimed to develop reference ranges and to document the repeatability in healthy young children using commercially available forced oscillation equipment. Methods: The forced oscillation technique, which uses a pseudo-random noise forcing signal between 4 and 48 Hz, was used to measure respiratory function in healthy young children. Repeatability over a 15 min period was also assessed. Regression equations and standardised Z scores were determined for respiratory resistance (Rrs) and reactance (Xrs) at 6, 8 and 10 Hz. Results: Respiratory function was obtained in 158 healthy children aged two to seven years and between 92 and 127 cm in height. Oscillatory respiratory mechanics exhibited linear relationships with height. Within-test variability for resistance ranged between 6% and 9% and between 17% and 20% for reactance. Resistance and reactance did not change significantly over a 15 min period. Conclusions: Reference ranges for respiratory impedance variables in healthy children aged two to seven years are presented. The short-term repeatability of forced oscillatory variables in this age group is reported, allowing appropriate cut-off values for therapeutic interventions to be defined.
Keyword REFERENCE VALUES
LUNG-FUNCTION
BRONCHODILATOR RESPONSE
INTERRUPTER TECHNIQUE
EMERGENCY-DEPARTMENT
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Faculty of Health and Behavioural Sciences -- Publications
 
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Created: Wed, 17 Nov 2010, 11:29:14 EST