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Long Term Outcomes of Early Cochlear Implantation in Korea

Cited 10 time in Web of Science Cited 11 time in Scopus
Authors
Suh, Myung-Whan; Cho, Eung Kyung; Kim, Bong Jik; Chang, Sun O.; Oh, Seung-Ha; Kim, Chong Sun
Issue Date
2009-09
Publisher
KOREAN SOC OTORHINOLARYNGOL
Citation
CLINICAL AND EXPERIMENTAL OTORHINOLARYNGOLOGY; Vol.2 3; 120-125
Keywords
Cochlear implantationCategories of auditory performancePicture vocabulary testLong term outcomeMaturation
Abstract
Objectives. The objective of this study was to compare the long-term auditory performance and language skill depending on the age of cochlear implantation in the Korean population. We especially tried to separate the effect of maturation/development from that of the age at implantation. Methods. Eighty-six pre-lingual children with profound hearing loss who underwent a cochlear implantation before the age of six and had been followed for more than 3 yr were included in this study prospectively. Categories of Auditory Performance (CAP) and Korean Picture Vocabulary Test (K-PVT) were serially followed up. In order to separate the age at implantation effect, K-PVT results were readjusted to the child`s chronological age in the normal hearing population. Results. When the CAP and K-PVT scores were directly compared without chronological readjustment, we failed to show a significant difference for improvements according to the age at implantation. Early cochlear implantation was associated with better language development, only when the K-PVT scores were readjusted to percentile scores of their chronological age. Conclusion. Early cochlear implantation was associated with better language development even within the critical period. This advantage may be recognized only when the effect of the age at implantation is separated from the effect of maturation/development.
ISSN
1976-8710
Language
English
URI
https://hdl.handle.net/10371/78521
DOI
https://doi.org/10.3342/ceo.2009.2.3.120
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College of Medicine/School of Medicine (의과대학/대학원)Otorhinolaryngology (이비인후과학전공)Journal Papers (저널논문_이비인후과학전공)
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