The biosafety of hyaluronate (healon) for cochlear implantation [Abstract]
AuthorDonnelly, Martin J.; Clark, Graeme M.
Source TitleAbstract book IFOS Sydney '97. XVI World Congress of Otohinolaryngology Head and Neck Surgery
University of Melbourne Author/sClark, Graeme
Document TypeConference Item
CitationsDonnelly, M. J., & Clark, G. M. (1997). The biosafety of hyaluronate (healon) for cochlear implantation [Abstract]. In Abstract book IFOS Sydney '97. XVI World Congress of Otohinolaryngology Head and Neck Surgery, Sydney, N.S.W.
Access StatusOpen Access
This is a publisher’s version of an abstract of a paper from XVI World Congress of Otohinolaryngology Head and Neck Surgery 1997, published by Monduzzi Editore. This version is reproduced with the permission of the publisher.
Insertion of the electrode array of multiple channel cochlear implants may be aided using Hyalurate. It is felt that this substance acts as a lubricant allowing the array to be inserted more deeply and less traumatically. This has potential advantages of improving pitch perception in cochlear implant patients. To investigate the biosafety of Hyaluronate an animal study was undertaken. Dummy electrodes were inserted into the cochleae of six normal hearing cats. Hyaluronate was used as a lubricant in one ear and the other ear served as a control. Measurement of hearing thresholds before and after surgery did not reveal hearing loss attributable to the Hyaluronate. The temporal bones from these cats were sectioned and the histological sections analysed for evidence of spiral ganglion cell or hair cell loss. Initial results have not demonstrated poorer spiral ganglion cell survival or greater hair cell loss in the group in which Hyaluronate was used.
Keywordscochlear implant; biosafety; otolaryngology; pitch perception; hyalurate
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- Graeme Clark Collection