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Updated: Jul 9, 2026

Conducting Respiratory Oscillometry in an Outpatient Setting

Conducting Respiratory Oscillometry in an Outpatient Setting

Published on: April 8, 2022

Correlation between spirometry and impulse oscillometry in children with asthma.

Tae Won Song¹, Kyung Won Kim, Eun Soo Kim

¹Division of Allergy and Respiratory Medicine [corrected] Department of Pediatrics, Ilsan Paik Hospital, Inje University College of Medicine, Goyang-city [corrected] Korea.

Acta Paediatrica (Oslo, Norway : 1992)

|December 14, 2007

Summary

Impulse Oscillometry (IOS) can assess lung function in children when spirometry is not feasible. This method correlates well with standard lung function tests, offering a viable alternative for evaluating obstructive lung disease.

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Conducting Respiratory Oscillometry in an Outpatient Setting

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Published on: April 8, 2022

Employing the Forced Oscillation Technique for the Assessment of Respiratory Mechanics in Adults

Employing the Forced Oscillation Technique for the Assessment of Respiratory Mechanics in Adults

Published on: February 9, 2022

Area of Science:

Pediatric Pulmonology
Respiratory Physiology
Allergy and Immunology

Background:

Performing forced expiratory maneuvers for lung function tests is challenging in young children and individuals with certain disabilities.
Alternative methods are needed to evaluate obstructive lung disease in these populations.

Purpose of the Study:

To evaluate the correlation between Impulse Oscillometry (IOS) parameters and standard spirometry/peak expiratory flow rate (PEFR) measurements.
To assess the utility of IOS in pediatric lung function exploration, particularly in asthmatic children.

Main Methods:

Impulse Oscillometry (IOS), spirometry, and PEFR were performed on 48 children with asthma and 66 controls (aged 7-15).
Total IgE, eosinophil counts, and specific IgE levels were measured.
Methacholine challenge was conducted, and correlations were analyzed across atopic and non-atopic groups.

Main Results:

FEV(1) and PEFR significantly correlated with IOS impedance and resistance (R) at multiple frequencies.
FVC also showed significant correlation with IOS impedance and R.
FEF(25-75%) did not correlate with resistance measurements.

Conclusions:

IOS parameters, including impedance and resistance, are significantly correlated with FEV(1), FVC, and PEFR in children.
IOS is a suitable alternative for lung function assessment when spirometry and PEF measurements are not possible, especially in atopic children.