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Updated: Jul 11, 2025
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Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
Published on: March 24, 2023
410
[The time range in sequential bilateral cochlear implantation]
S B Sugarova1, D S Kliachko1, Ya L Shcherbakova1
1St. Petersburg Research Institute of Ear, Throat, Nose and Speech, St. Petersburg, Russia.
Vestnik Otorinolaringologii
|November 16, 2023
Summary
Binaural cochlear implantation (CI) is effective even with long intervals between surgeries. A gap exceeding five years does not hinder outcomes in speech understanding and sound localization for bilateral CI patients.
Area of Science:
- Otorhinolaryngology
- Audiology
- Neurosurgery
Context:
- Binaural cochlear implantation (CI) offers significant auditory rehabilitation.
- The impact of extended time intervals between sequential CI surgeries on outcomes is not well-established.
- This study addresses the efficacy of delayed bilateral CI.
Purpose:
- To evaluate the effect of the time interval between initial and second cochlear implant surgeries.
- To compare auditory performance in patients with varying delays between bilateral CI procedures.
Summary:
- Fifty pediatric patients (10-14 years) were grouped by unilateral CI, bilateral CI with <1 year interval, and bilateral CI with >5 year interval.
- Speech audiometry in noise, sound localization, and speech development questionnaires were used for comparative analysis.
- Bilateral CI patients, regardless of the interval between surgeries, demonstrated superior speech intelligibility in noise and sound localization compared to unilateral CI recipients.
Impact:
- A prolonged interval (over five years) between first and second cochlear implantations is not a contraindication for binaural CI.
- These findings support the consideration of bilateral CI even in cases with significant delays, potentially improving auditory function and quality of life.
