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KMID : 0858620050090010003
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Korean Journal of Audiology
2005 Volume.9 No. 1 p.3 ~ p.15
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Auditory Brainstem Implatation：State-of-the-Art
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Song Jae-Jin
Kim Hyung-Jong
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Abstract
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Since June 1994, US Food and Drug Administration clinical trials of the multi-channel auditory brainstem implant (ABI) have been in progress at a number of investigational sites. Evaluation of perceptual performance has shown that the multi-channel ABI can provide auditory cues that are useful in sound awareness and spoken communication, including a degree of open set speech recognition in some patients. Development of the multi-channel ABI has provided a viable alternative to the deafness that occurs in individuals with neurofibromatosis type 2, bilateral auditory nerve aplasia, severe bilateral labyrinthitis ossificans after bacterial meningitis, and so on. This article describes: the history of the ABI development, the hardware and electrode design, patient selection for implantation for the ABI, anatomic considerations, surgical techniques including translabyrinthine approach and retrosigmoid approach, surfical complications, postimplantation psychophysical testing and auditory performance. In the last session, future development and perspectives of the ABI are discussed.
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KEYWORD
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Auditory brainstem implant, Neurofibromatosis type 2, Translabyrinthine approach, Retrosigmoid approach
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