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Related Experiment Video

Updated: Jan 13, 2026

Performing Intracochlear Electrocochleography During Cochlear Implantation
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Long-Term Behavioral and Neurophysiological Outcomes Following Cochlear Reimplantation in Children: An EEG Study With

Xinyi Yao1,2,3, Haotian Liu1,2,3, Feng Gu4

  • 1Department of Otorhinolaryngology-Head & Neck Surgery, West China Hospital of Sichuan University, Chengdu, China.

Ear and Hearing
|October 30, 2025
PubMed
Summary

Cochlear reimplantation in children may lead to developmental delays, impacting grammatical comprehension and quality of life. Factors like early implantation and cognitive stimulation can improve outcomes for these children.

Keywords:
Cochlear implantCochlear reimplantationCognitive resourceGrammar comprehensionMismatch negativityQuality of life

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Area of Science:

  • Pediatric audiology
  • Neuroscience
  • Speech-language pathology

Background:

  • Cochlear reimplantation is increasingly common, yet outcomes vary.
  • Limited data exists on developmental delays associated with cochlear reimplantation.
  • Understanding performance differences is crucial for optimizing patient care.

Purpose of the Study:

  • Compare children with cochlear reimplantation versus primary cochlear implants.
  • Evaluate performance using behavioral and electroencephalography (EEG) measures.
  • Identify factors influencing outcomes in cochlear reimplantation.

Main Methods:

  • Cross-sectional study at two tertiary medical centers.
  • Included 51 children with cochlear reimplantation and 51 with primary cochlear implants, matched by age, sex, and unaided hearing.
  • Utilized audiometry, speech/auditory assessments, EEG (mismatch negativity), and regression models.

Main Results:

  • Children with cochlear reimplantation showed poorer grammatical comprehension and quality of life.
  • EEG revealed slower auditory processing and increased cognitive load in the reimplantation group.
  • Auditory age, cognitive status, and environmental factors significantly influenced outcomes.

Conclusions:

  • Cochlear reimplantation can negatively affect grammatical skills, quality of life, and auditory discrimination.
  • Early implantation, cognitive support, and specific intervention modalities can mitigate negative effects.
  • Optimizing the environment and parental engagement is key for better results.