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Agreement between spirometry and impulse oscillometry for lung function assessment in 6-year-old children born
Björn Lundberg1,2, Erik Melén1,2, Per Thunqvist1,3
1Department of Clinical Sciences and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden.
Pediatric Pulmonology
|August 6, 2020
Summary
Impulse oscillometry (IOS) is a feasible method for assessing lung function in extremely preterm children, showing moderate correlation with spirometry. This technique can help identify children without obstructive airway disease.
Area of Science:
- Pediatric pulmonology
- Respiratory medicine
- Neonatal follow-up
Background:
- Extremely preterm birth is linked to long-term reduced lung function.
- Clinical follow-up using lung function tests is recommended for these children.
- Dynamic spirometry is standard but challenging for young children; impulse oscillometry (IOS) is a potential alternative.
Purpose of the Study:
- To assess the feasibility of spirometry and IOS in preschool children born extremely preterm.
- To determine the correlation between spirometry and IOS outcomes in this population.
Main Methods:
- Spirometry and IOS were conducted in 6-year-old extremely preterm children and term-born controls.
- Feasibility (success rates) and correlation analyses (Pearson's, Spearman's) were performed.
- Statistical adjustments were made for height.
Main Results:
- IOS demonstrated higher feasibility (93%) compared to spirometry (60%) in this cohort.
- Correlations between spirometry and IOS outcomes were moderate.
- Normal IOS results accurately identified a high percentage of children with normal spirometry, suggesting its utility in excluding obstructive disease.
Conclusions:
- Impulse oscillometry (IOS) is a more feasible method than spirometry for evaluating lung function in young children, regardless of gestational age.
- IOS can be considered a viable alternative for children unable to perform spirometry.
- This supports the use of IOS in the follow-up of extremely preterm infants.
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