Multichannel auditory brainstem implantation: the Australian experience
AuthorBriggs, R. J. S.; Fagan, P.; Atlas, M.; Kaye, A. H.; Sheehy, J.; Hollow, R.; Shaw. S.; Clark, Graeme M.
Source TitleThe Journal of Laryngology & Otology
PublisherCambridge University Press
Document TypeJournal Article
CitationsBriggs, R. J. S., Fagan, P., Atlas, M., Kaye, A. H., Sheehy, J., Hollow, R., et al. (2000). Multichannel auditory brainstem implantation: the Australian experience. The Journal of Laryngology & Otology, December, 114(Suppl. 27), 46-49.
Access StatusOpen Access
This is a publisher’s version of an article published in The Journal of Laryngology & Otology © 2000 Cambridge University Press. www.cambridge.org/
The multichannel auditory brainstem implant (ABI) provides the potential for hearing restoration in patients with neuro bromatosis type 2 (NF2). Programmes for auditory brainstem implantation have been established in two Australian centres. Eight patients have been implanted under the protocol of an international multi-centre clinical trial. Three patients had ABI insertion at the time of first side tumour removal, four at second side tumour removal and one after previous bilateral surgery where there was some residual tumour. The translabyrinthine approach was used in all cases. Successful positioning of the electrode array was achieved in seven of eight patients, all of whom achieved auditory perception with electrical stimulation. Intra-operative electrically evoked auditory brainstem response testing was successful in four patients and was useful in confirming correct electrode position. In six cases postoperative psychophysical and auditory perception testing demonstrated that useful auditory sensations were achieved. Five of these patients regularly used the implant. In one patient electrode placement was unsuccessful and only non-auditory sensations occurred on stimulation. In the remaining patients nonauditory sensations were minimal and avoidable by selective electrode programming. Auditory brainstem implantation should be considered in patients with NF2. The greatest benefit is seen in patients without debilitating disease who have non-aidable hearing in the contralateral ear.
Keywordsbrain stem; prosthesis implantation; neurofibromatosis 2; Australia
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- Graeme Clark Collection