Cochlear Implant Failure: is an Auditory Brainstem Implant the Answer?

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Bibliographic Details
Title:	Cochlear Implant Failure: is an Auditory Brainstem Implant the Answer?
Authors:	Colletti, Vittorio, Carner, Marco, Miorelli, Veronica, Guida, Maurizio, Colletti, Liliana, Fiorino, Francesco
Source:	Acta Oto-Laryngologica. May2004, Vol. 124 Issue 4, p353-357. 5p.
Subjects:	Cochlear implants, Hearing aids, Artificial implants, Cochlea surgery, Neuropathy, Alternative medicine
Abstract:	Objective --To investigate the auditory rehabilitative results achieved in five patients with cochlear implants (CIs) who subsequently received, due to poor results, auditory brainstem implants (ABIs). Material and Methods --Between April 1997 and March 2003, 37 patients (age range 14 months to 70 years) were fitted with ABIs in our ENT Department. Fourteen subjects had neurofibromatosis type 2 and 23 were non-tumor patients who had cochlea or cochlear nerve disease. Five subjects had previously been treated with a CI and received an ABI owing to the poor results achieved. One child had bilateral undiagnosed cochlear nerve aplasia and one was suffering from auditory neuropathy; three adults had total cochlear ossification. Results --The open-set sentence recognition score (auditory-only mode) 6-8 months after ABI activation ranged from 0% to 100% in adults. In 1 subject the speech-tracking score was 56 words/min with the ABI. The two children who had achieved no hearing ability with their CI were able to detect sounds and words as early as 3 months after activation of the ABI. Conclusion --CI failure as a result of anatomical abnormalities can be remedied by an ABI. [ABSTRACT FROM AUTHOR]
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Database:	Psychology and Behavioral Sciences Collection

Description
Abstract:	Objective --To investigate the auditory rehabilitative results achieved in five patients with cochlear implants (CIs) who subsequently received, due to poor results, auditory brainstem implants (ABIs). Material and Methods --Between April 1997 and March 2003, 37 patients (age range 14 months to 70 years) were fitted with ABIs in our ENT Department. Fourteen subjects had neurofibromatosis type 2 and 23 were non-tumor patients who had cochlea or cochlear nerve disease. Five subjects had previously been treated with a CI and received an ABI owing to the poor results achieved. One child had bilateral undiagnosed cochlear nerve aplasia and one was suffering from auditory neuropathy; three adults had total cochlear ossification. Results --The open-set sentence recognition score (auditory-only mode) 6-8 months after ABI activation ranged from 0% to 100% in adults. In 1 subject the speech-tracking score was 56 words/min with the ABI. The two children who had achieved no hearing ability with their CI were able to detect sounds and words as early as 3 months after activation of the ABI. Conclusion --CI failure as a result of anatomical abnormalities can be remedied by an ABI. [ABSTRACT FROM AUTHOR]
ISSN:	00016489
DOI:	10.1080/00016480410016441