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Updated: Apr 25, 2026
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Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
Published on: March 24, 2023
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Hearing preservation cochlear implantation in adolescents
Iain A Bruce1, Mark Felton, Morag Lockley
1*Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Science Centre; †School of Inflammation and Repair, and ‡School of Cancer and Enabling Services, University of Manchester, Manchester, United Kingdom.
Summary
Cochlear implantation in adolescents with hearing preservation is successful, maintaining residual hearing in most cases. Preserving low-frequency hearing enhances speech understanding with cochlear implants.
Area of Science:
- Otolaryngology
- Neuroscience
- Audiology
Background:
- Cochlear implantation (CI) is a common treatment for profound hearing loss.
- Hearing preservation during CI surgery aims to maintain residual low-frequency hearing.
- The benefits of hearing preservation in adolescent CI recipients are not fully established.
Purpose of the Study:
- To evaluate the success and maintenance of hearing preservation in adolescents undergoing cochlear implantation.
- To assess the potential benefits of preserved hearing in this population.
Main Methods:
- Retrospective study of 14 adolescents with profound hearing loss and preserved low-frequency hearing.
- Soft surgical technique with standard-length electrodes for cochlear implantation.
- Preoperative and postoperative audiograms and speech audiometry for outcome assessment.
Main Results:
- Successful hearing preservation was achieved in 13 of 14 patients.
- Three patients experienced hearing deterioration during follow-up (average 2 years 10 months).
- Combined natural hearing and CI improved speech audiometry scores compared to CI alone.
Conclusions:
- Soft surgical techniques allow for consistent hearing preservation in adolescents undergoing CI, with short- to medium-term maintenance.
- Preserving residual low-frequency hearing may improve speech discrimination in challenging listening situations.
- Larger studies are needed to confirm the long-term benefits of hearing preservation in this population.
