ArticleJournal of asthma and allergy2019
Impulse oscillometry reference values and bronchodilator response in three- to five-year old children living at high altitude.
Article in Journal of asthma and allergy, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
What it found
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Who cites it
5 citing papers in PubMed, 12 citations in OpenAlex.
- Respiratory Impedance Prediction in Children and Adolescents: A Meta-Modelling Approach.Annals of biomedical engineering · 2026Article
- Reference equations using segmented regressions for impulse oscillometry in healthy subjects aged 2.7-90 years.ERJ open research · 2023Article
- Impulse Oscillometry System for the Diagnosis of Wheezing Episode in Children in Office Practice.Journal of asthma and allergy · 2022Article
- Lung Function in Preschool Children in Low and Middle Income Countries: An Under-Represented Potential Tool to Strengthen Child Health.Frontiers in pediatrics · 2022Review
- Infant Nasopharyngeal Microbiota Subphenotypes and Early Childhood Lung Function: Evidence from a Rural Ghanaian Pregnancy Cohort.International journal of environmental research and public health · 2021Article
Corrections and comments
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Authors and funding
8 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionImpulse oscillometry (IOS) is used to measure airway impedance. It is an effective tool for diagnosing and treating respiratory diseases, and it has the advantage that it does not require forced respiratory maneuvers. IOS reference values are required for each population group.
objectiveThis study aimed to determine the IOS reference values and bronchodilator response in healthy preschool children living in Bogotá, Colombia.
methodsWe performed a cross-sectional study in preschool children who had no history of respiratory disease; 96 children fit the parameters for testing to determine normal values according to the American Thoracic Society and European Respiratory Society criteria.
resultsValues for respiratory resistance (Rrs) and reactance (Xrs) at 5, 10, and 20 Hz, respiratory impedance (Zrs, and resonance frequency (Fres) were established. Height was the most influential independent variable for IOS values; an increase in height led to a reduction in Rrs5 and Rrs20 and an increase in Xrs5. After the administration of 400 mcg of salbutamol the values for Rrs5(-17.48%), Rrs20(-8.63%), Fres (-10.68%), and area of reactance (-35.44%) were reduced, meanwhile Xrs5 (15.35%) was increased.
conclusionsNormal IOS values before and after the administration of 400 mcg of salbutamol were determined for a population of children aged 3-5 years at 2,640 m. Reference IOS equations for these children are presented. A relative change of up to -28% and 36% after the use of salbutamol for respiratory resistance and reactance, respectively, should be considered as an upper limit of the normal range, and possible appropriate cut-off values for defining significant response for evaluating therapeutic interventions.
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