Related Experiment Video
Updated: Jan 24, 2026

Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
Published on: March 24, 2023
Evaluating the Long-Term Hearing Outcomes of Cochlear Implant Users With Single-Sided Deafness
Dayse Távora-Vieira1,2, Gunesh P Rajan1,3, Paul Van de Heyning4,5
1Otolaryngology, Head & Neck Surgery, Medical School, University of Western Australia.
Objectives:
To investigate the long-term outcomes of cochlear implantation in individuals with single-sided deafness (SSD) in terms of speech perception, subjective hearing performance, and sound localization.
Methods:
Thirty-four subjects with SSD were recruited across two large cochlear implant (CI) centers (Antwerp, Belgium and Perth, Australia). The long-term hearing outcomes (between 4 and 10 years of CI use) were evaluated using speech in noise tests, a subjective hearing performance questionnaire (Speech, Spatial and Qualities Questionnaire [SSQ12]), and sound localization tests.
Results:
Statistically significant improvements were observed in speech perception in noise and sound localization results postoperatively with the use of a CI in comparison to preoperative measurements. Subjective hearing abilities also significantly improved after long-term CI use.
Conclusion:
Access to binaural hearing is important for subjects with SSD. CI users with SSD experience long-term benefits in speech understanding, sound localization, and quality of life.
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