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Impulse Oscillometry and Exercise Bronchoconstriction in Children and Adolescents

Author

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  • Alberto Vidal Grell

    (Department of Pediatric Pulmonology, Clínica MEDS, Chile)

Abstract

The gold standard for diagnosing exercise-induced obstruction in children is a drop in FEV1 ≥ 10% after vigorous physical activity. Not all children can achieve the exercise challenge test. In this scenario, Impulse Oscillometry emerges as an alternative method. A review of the available evidence for the use of IOS in the diagnosis of EIB was performed. In preschool IOS, the increase of ≥ 35-40% in resistance at 5 Hertz after free running exercise has proven to be a good parameter. In children and adolescents, the cut-off points for raising R5 have been shown to be lower, but with a good negative predictive value to rule out EIB. In this group, it could also be useful to measure within-breath differences in reactance.

Suggested Citation

  • Alberto Vidal Grell, 2024. "Impulse Oscillometry and Exercise Bronchoconstriction in Children and Adolescents," Biomedical Journal of Scientific & Technical Research, Biomedical Research Network+, LLC, vol. 56(1), pages 47588-47592, April.
    • Handle: RePEc:abf:journl:v:56:y:2024:i:1:p:47588-47592
    DOI: 10.26717/BJSTR.2024.56.008783
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