Etiology of hearing loss affects auditory skill development and vocabulary development in pediatric cochlear implantation cases

Shin ya Nishio, Hideaki Moteki, Maiko Miyagawa, Tatsuya Yamasoba, Akinori Kashio, Satoshi Iwasaki, Masahiro Takahashi, Yasushi Naito, Keizo Fujiwara, Akiko Sugaya, Haruo Takahashi, Kyoko Kitaoka, Shin ichi Usami

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


Background: Cochlear implantation (CI) is an effective treatment for severe-to-profound hearing loss patients and is currently used as the standard therapeutic option worldwide. However, the outcomes of CI vary among patients. Aims/Objectives: This study aimed to clarify the clinical features for each etiological group as well as the effects of etiology on CI outcomes. Materials and methods: We collected clinical information for 308 pediatric cochlear implant cases, including the etiology, hearing thresholds, age at CI, early auditory skill development, total development, monosyllable perception, speech intelligibility and vocabulary development in school age, and compared them for each etiology group. Results: Among the 308 CI children registered for this survey, the most common etiology of hearing loss was genetic causes. The genetic etiology group showed the most favorable development after CI followed by the unknown etiology group, syndromic hearing loss group, congenital CMV infection group, inner ear malformation group, and cochlear nerve deficiency group. Conclusions and significance: Our results clearly indicated that the etiology of HL affects not only early auditory skill development, but also vocabulary development in school age. The results of the present study will aid in more appropriate CI outcome assessment and in more appropriate intervention or habilitation programs.

Original languageEnglish
Pages (from-to)308-315
Number of pages8
JournalActa Oto-Laryngologica
Issue number3-4
Publication statusPublished - 2022


  • auditory behavior development
  • Cochlear implantation
  • congenital cytomegalovirus infection
  • etiology
  • genetic testing
  • hearing loss
  • inner ear malformation
  • vocabulary development

ASJC Scopus subject areas

  • Otorhinolaryngology


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