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Related Experiment Videos

Long-term tympanic ventilation by Per-Lee tube.

A G Gibb

    The Journal of Laryngology and Otology
    |May 1, 1986
    PubMed
    Summary

    The Per-Lee ventilation tube is effective for long-term middle-ear ventilation in secretory otitis media. In a 15-year study, no tubes extruded, and most remained functional, improving hearing without deterioration.

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    Area of Science:

    • Otolaryngology
    • Biomedical Engineering

    Background:

    • Secretory otitis media (SOM) is a common condition requiring middle-ear ventilation.
    • Long-term prostheses are needed for sustained middle-ear aeration.

    Purpose of the Study:

    • To analyze the long-term efficacy and outcomes of Per-Lee ventilation tubes for secretory otitis media.

    Main Methods:

    • A retrospective analysis of 32 Per-Lee ventilation tubes inserted over 15 years.
    • Evaluation of tube function, extrusion, removal reasons, and tympanic membrane healing.

    Main Results:

    • No extrusions were observed in 32 inserted tubes.
    • 25 tubes remained functional at the survey, providing over 157 years of total ventilation.
    • Seven tubes were removed due to obstruction or infection; tympanic membrane scarring was noted.

    Conclusions:

    • The Per-Lee tube demonstrates suitability as a long-term prosthesis for middle-ear ventilation.
    • Functional ventilation improved hearing without causing deterioration.
    • While effective, potential complications like obstruction, infection, and scarring require consideration.

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