Title
Three-year postimplantation auditory outcomes in children with sequential bilateral cochlear implantation
Author
Faculty/Department
Faculty of Sciences. Physics
Faculty of Medicine and Health Sciences
Publication type
article
Publication
St. Louis, Mo. ,
Subject
Human medicine
Source (journal)
The annals of otology, rhinology and laryngology. - St. Louis, Mo., 1897, currens
Volume/pages
118(2009) :5 , p. 336-344
ISSN
0003-4894
1943-572X
ISI
000266083200004
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Objectives: We report on the auditory abilities and speech performance in quiet and noise of 35 children with sequential bilateral cochlear implantation after 3 years of bilateral implant use. Methods: Testing was done in bilateral and both unilateral listening conditions. The assessments took place before the second implantation and at several time intervals after fitting. As different auditory tests were used, the children were categorized by their age at the second implantation: younger or older than 6 years. Results: The pure tone averages for the bilateral condition were significantly better than those for either unilateral condition after 12 months of bilateral implant use and remained so from that test interval onward. The speech recognition outcomes in quiet and noise also improved significantly for almost all children after 36 months, although a linear regression analysis showed a beneficial effect of younger age at first implantation on the speech-in-noise results. Conclusions: Bilateral cochlear implantation offered advantages to all children in comparison with the first implant - even the children who received the second implant after the age of 6 years. Compared to the younger children, the older children needed a longer adjustment period to gain bilateral benefit. However, they obtained similar results after 2 years of bilateral implant use.
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