PMID: 3753835Jan 1, 1986Paper

Cochlear implantation: strategies to protect the implanted cochlea from middle ear infection

The Annals of Otology, Rhinology, and Laryngology
R K JacklerR A Schindler

Abstract

A cochlear implant for use in children must take into account the high incidence of middle ear infection in this age group. A scala tympani electrode that traverses the middle ear and round window will likely act as a conduit by which infection can spread to the inner ear and potentially to the CNS. In this study an attempt was made to reestablish a separation of the cochlea from the middle ear by developing a seal around the implant at the level of the round window. A series of cats were implanted with simulated cochlear prostheses consisting of either a plain Silastic cylinder, a Silastic cylinder wrapped with autogenous fascia, or a Silastic cylinder with a cuff of bioactive ceramic. Middle ear infection was induced, followed by histologic examination. Bioactive ceramic appears to have some merit as a round window sealing material, while fascia was shown to be of no value. Intracochlear infection, when it did occur, was limited to the basal regions of the cochlea.

References

May 1, 1985·Ear and Hearing·W F HouseB Courtney
Aug 1, 1967·The Annals of Otology, Rhinology, and Laryngology·M M Paparella, S Sugiura
Oct 1, 1969·The Journal of Pediatrics·R C BrownleeH P Jackson
Jan 1, 1983·Annals of the New York Academy of Sciences·P A Leake-Jones, S J Rebscher
Nov 1, 1983·The Annals of Otology, Rhinology, and Laryngology·W F HouseL S Eisenberg
Nov 1, 1983·The Annals of Otology, Rhinology, and Laryngology·F H Linthicum, F R Galey
Feb 1, 1981·Clinical Otolaryngology and Allied Sciences·R Reck

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Citations

Nov 1, 1996·The Laryngoscope·M LuntzJ Schloffman
Sep 16, 2008·Cochlear Implants International·Rajiv Kaila, Robert A Evans
Sep 19, 2006·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Benjamin P C WeiStephen J O'Leary
Mar 1, 1997·The Journal of Laryngology and Otology·P R AxonR T Ramsden

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