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Is there a functioning vestibulocochlear nerve? Cochlear implantation in a child with symmetrical auditory findings but asymmetric imaging.

Authors
  • Acker, T
  • Mathur, N N
  • Savy, L
  • Graham, J M
Type
Published Article
Journal
International Journal of Pediatric Otorhinolaryngology
Publisher
Elsevier
Publication Date
Feb 01, 2001
Volume
57
Issue
2
Pages
171–176
Identifiers
PMID: 11165657
Source
Medline
License
Unknown

Abstract

The finding of an abnormally narrow internal auditory meatus during the assessment of a child for cochlear implantation raises the possibility that the meatus may not contain the normal number of nerves. Even with currently available MRI techniques it may be extremely difficult to decide whether or not to offer cochlear implant in such cases. We present a child of 4 1/2 years, assessed for cochlear implantation. MRI and CT imaging suggested aplasia of one vestibulocochlear nerve and hypoplasia of the other. However, audiological tests showed clear responses to sound in both ears and functional use of sound in her daily life. This child was eventually implanted with encouraging postoperative results.

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