Middle ear infection postimplantation: response of the round window membrane to Streptococcus pyogenes

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    Author
    Cranswick, N. E.; Franz, B. K-H.; Clark, Graeme M.; Shepherd, R. K.; Bloom, D. M.
    Date
    1987
    Source Title
    Annals of Otology, Rhinology & Laryngology
    University of Melbourne Author/s
    Clark, Graeme; Shepherd, Robert; Franz, Burkhard
    Metadata
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    Document Type
    Journal Article
    Citations
    Cranswick, N. E., Franz, B. K., Clark, G. M., Shepherd, R. K. & Bloom, D. M. (1987). Middle ear infection postimplantation: response of the round window membrane to Streptococcus pyogenes. Annals of Otology, Rhinology & Laryngology, January-February, 96(1, part 2, suppl.128), 53-54.
    Access Status
    Open Access
    URI
    http://hdl.handle.net/11343/27245
    Description

    This is a publisher’s version of an article published in Annals of Otology, Rhinology & Laryngology published by Annals Publishing Company. This version is reproduced with permission from Annals Publishing Company. http://www.annals.com/
    Abstract
    The seal of the implanted round window membrane to resist Streptococcus pyogenes invasion from the middle ear was investigated in 12 cats. Results showed that the implanted round window membrane is able to form a barrier for S pyogenes starting 1 week postimplantation. Under normal conditions S pyogenes did not pass through the round window membrane, nor through the gap that existed between the membrane and the prosthesis. Mechanical disruption of the round window seal, however, and severe inflammatory response to S pyogenes caused the infection to extend into the inner ear.
    Keywords
    otology; cochlear implant; ear infection; Streptococcus pyogenes

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