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Laryngoscope. 1999 Feb;109(2 Pt 1):181-5.

Cochlear implantation in auditory neuropathy.

Author information

1
Department of Otolaryngology--Head and Neck Surgery, Indiana University School of Medicine, Indianapolis 46202, USA.

Abstract

OBJECTIVE:

Auditory neuropathy is a recently described clinical entity characterized by sensorineural hearing loss in which the auditory evoked potential (ABR) is absent but otoacoustic emissions are present. This suggests a central locus for the associated hearing loss. In this study the results observed in a child with auditory neuropathy who received a cochlear implant are presented and compared with those of a matched group of children who were recipients of implants.

METHODS:

A single-subject, repeated-measures design, evaluating closed-set and open-set word recognition abilities was used to assess the subject and a control group of matched children with implants who had also experienced a progressive sensorineural hearing loss.

RESULTS:

The subject demonstrated improvements in vowel recognition (82% correct) by 1 year after implantation, which were only slightly lower than the control group. Consonant recognition and open-set word recognition scores were significantly lower.

CONCLUSION:

Caution should be exercised when considering cochlear implantation in children with auditory neuropathy. As with conventional hearing aids, less than optimal results may be seen.

PMID:
10890762
[Indexed for MEDLINE]

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