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Related Experiment Videos

Endoscopic scoring system in patients with allergic rhinitis

S Bavbek1, O Kalaycioglu, S Beder

  • 1Ankara University, School of Medicine, Department of Allergy, Turkey.

Journal of Investigational Allergology & Clinical Immunology
|May 1, 1997
PubMed
Summary

Airway inflammation in allergic rhinitis patients (ARP) with and without bronchial hyperreactivity (BHR) was assessed using fiberoptic bronchoscopy. Findings suggest BHR in ARP may stem from factors beyond airway inflammation.

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Area of Science:

  • Pulmonology
  • Allergy and Immunology
  • Respiratory Medicine

Background:

  • Airway inflammation is a hallmark of various respiratory conditions.
  • Previous studies explored airway inflammation in chronic bronchitis and asthma.
  • The role of airway inflammation in allergic rhinitis patients with bronchial hyperreactivity requires further investigation.

Purpose of the Study:

  • To assess and grade airway inflammation in allergic rhinitis patients (ARP) using fiberoptic bronchoscopy.
  • To compare airway inflammation levels between ARP with and without bronchial hyperreactivity (BHR) and healthy controls.
  • To investigate the correlation between airway inflammation scores and BHR in ARP.

Main Methods:

  • Fiberoptic bronchoscopy was performed on three groups: ARP with BHR, ARP without BHR, and healthy controls.

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  • Bronchoalveolar lavage (BAL) fluid was obtained during bronchoscopy.
  • Visual inspection of airways was conducted using a standardized method, and inflammatory scores were calculated.

    • Main Results:

    • Bronchoalveolar lavage fluid recovery and differential cell counts were similar across all groups.
    • No significant differences in inflammatory scores were observed between ARP with BHR, ARP without BHR, and controls.
    • A lack of correlation was found between the inflammatory score and methacholinePC20, indicating BHR is not solely explained by airway inflammation.

    Conclusions:

    • Airway inflammation, as assessed by fiberoptic bronchoscopy and BAL, does not significantly differ in allergic rhinitis patients with or without bronchial hyperreactivity.
    • Bronchial hyperreactivity in allergic rhinitis patients may be attributed to mechanisms other than direct airway inflammation.
    • Further research is needed to elucidate the underlying causes of bronchial hyperreactivity in allergic rhinitis.