Repository of Research and Investigative Information

Repository of Research and Investigative Information

Baqiyatallah University of Medical Sciences

Long-Term Effects of Cochlear Implantation on Language Skills -and Speech Intelligibility in Early-implanted Versus Late Implanted Deaf Children

(2021) Long-Term Effects of Cochlear Implantation on Language Skills -and Speech Intelligibility in Early-implanted Versus Late Implanted Deaf Children. International Journal of Pediatrics-Mashhad. pp. 14663-14671. ISSN 2345-5047

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Abstract

Background: Hearing loss may affect many aspects of a person's life. The age of cochlear implantation (CI) is often considered an important predictor of language skills in children with CI, but little is known about the benefits of early CI on speech intelligibility development in these children. This study aimed to compare language skills as well as intelligibility of speech in prelingual deaf patients who received CI before the age of six years and those who received CI after the age of six years with an 8-year follow-up. Methods: This 8-year longitudinal, retrospective case-control study was conducted in 2021 at a cochlear implant center in Tehran, Iran. Thirty-one patients were included in two groups: late cochlear implant (n = 15), and early cochlear implant (n = 16). The Test of Language Development-Primary (TOLD-P3) was used to assess the participants' language skills. The intelligibility of the participants' speech was assessed through the Persian version of the Intelligibility Context Scale (ICS) and the speech intelligibility rating (SIR). Results: These two groups did not show a significant difference in terms of the language scores (P>0.05) but had a significant difference in terms of the SIR and the ICS scores (P<0.05). Speech intelligibility had a significantly negative correlation with the age of CI (r = -0.57, P<0.001), and a significant positive correlation with language skills (r = 0.75, P<0.001). Conclusion: The long-term outcomes of early and late CI were similar in terms of the development of language skills but too different in terms of the intelligibility of speech. The age of CI had no effect on language development but had a significant effect on speech intelligibility.

Item Type: Article
Keywords: Cochlear Implantation Language Hearing Impairment Intelligibility Late Speech age reliability scale Pediatrics
Page Range: pp. 14663-14671
Journal or Publication Title: International Journal of Pediatrics-Mashhad
Journal Index: ISI
Volume: 9
Number: 10
Identification Number: https://doi.org/10.22038/ijp.2021.57919.4546
ISSN: 2345-5047
Depositing User: مهندس مهدی شریفی
URI: http://eprints.bmsu.ac.ir/id/eprint/9922

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