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Related Experiment Videos

Nasal function and bronchial hyperresponsiveness to methacholine in children

D Kiss1, W Popp, F Horak

  • 1Pulmonary Department, Krankenhaus Lainz, Vienna, Austria.

Chest
|June 1, 1995
PubMed
Summary

Nasal airflow obstruction and increased nasal reactivity in children are linked to bronchial hyperresponsiveness. This suggests nasal dysfunction may play a role in asthma development.

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Area of Science:

  • Pediatric Pulmonology
  • Allergy and Immunology
  • Otolaryngology

Background:

  • Bronchial hyperresponsiveness (BHR) is a hallmark of asthma in children.
  • Nasal function, assessed via rhinomanometry, has not been extensively correlated with BHR in pediatric populations.
  • Understanding potential links between upper and lower airway function is crucial for comprehensive pediatric respiratory care.

Purpose of the Study:

  • To investigate the relationship between nasal airflow dynamics, measured by active anterior rhinomanometry, and spirometric lung function.
  • To explore the association between nasal function parameters and bronchial hyperresponsiveness to methacholine in children.
  • To determine if nasal reactivity, assessed by a decongestion test, correlates with BHR.

Main Methods:

Related Experiment Videos

  • A cohort of 300 children (8-11 years) underwent basal active anterior rhinomanometry.
  • A nasal decongestion test was performed, followed by spirometry and a methacholine provocation test to assess BHR.
  • Statistical analysis correlated rhinomanometric flow values, decongestion response, and spirometric data with BHR.

    • Main Results:

    • Basal nasal airflow showed a significant correlation with children's height and the presence of BHR.
    • The nasal decongestion test revealed significantly higher flow rates in children with BHR (p < 0.01).
    • Spirometric data did not demonstrate a significant influence on rhinomanometric values.

    Conclusions:

    • Nasal dysfunction, indicated by basal rhinomanometry, may be associated with BHR in children.
    • Increased nasal airflow reactivity following a decongestion test is significantly linked to BHR.
    • These findings suggest a potential connection between upper airway nasal dysfunction and lower airway hyperresponsiveness in pediatric respiratory health.