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Related Experiment Videos

Eustachian tube permeability during the nasal provocation test

S Crifò, S Cittadini, E De Seta

    Rhinology
    |June 1, 1977
    PubMed
    Summary

    Nasal allergy can reduce Eustachian tube function. This study found that 73% of perennial nasal atopy patients experienced reduced Eustachian tube permeability or stenosis after allergen exposure, highlighting the need for allergy treatment in secretory otitis.

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    Area of Science:

    • Otolaryngology
    • Allergology
    • Clinical Physiology

    Background:

    • Secretory otitis media is a common condition often linked to Eustachian tube dysfunction.
    • Perennial nasal atopy is a prevalent allergic condition affecting the nasal passages.
    • Eustachian tube function is crucial for middle ear pressure regulation.

    Purpose of the Study:

    • To investigate the impact of perennial nasal atopy on Eustachian tube permeability.
    • To assess changes in Eustachian tube function following controlled allergen exposure in atopic individuals.
    • To underscore the clinical significance of nasal allergy in patients with secretory otitis.

    Main Methods:

    • Manometric studies were conducted to evaluate Eustachian tube permeability.
    • Twenty-six cases of perennial nasal atopy were exposed to a threshold dose of their responsible allergen.

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  • Ipsilateral Eustachian tube function was assessed before and after allergen challenge.

    • Main Results:

    • A significant reduction in Eustachian tube permeability was observed in 73% of the cases.
    • Specifically, 16 cases showed reduced permeability, and 4 cases exhibited stenosis of the ipsilateral Eustachian tube.
    • These findings indicate a direct correlation between nasal allergen exposure and impaired Eustachian tube function.

    Conclusions:

    • Perennial nasal atopy can lead to significant impairment of Eustachian tube permeability.
    • Allergen-induced Eustachian tube dysfunction is a relevant factor in the pathophysiology of secretory otitis.
    • Targeted diagnosis and treatment of nasal allergies are essential for managing patients with secretory otitis.