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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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Five-Year Hearing Outcomes in Bilateral Simultaneously Cochlear-Implanted Adult Patients
Daniele De Seta1, Yann Nguyen, Antoine Vanier
1Unité Otologie, Implants Auditifs et Chirurgie de la Base du Crâne, Groupe Hospitalier Pitié-Salpêtrière, AP-HP, Paris, France.
Audiology & Neuro-Otology
|September 23, 2016
Summary
Bilateral cochlear implants significantly improve speech performance in adults over five years, especially for those with poorer initial scores. Continued use of implants and speech training aids long-term auditory gains.
Area of Science:
- Audiology
- Neurosurgery
- Speech-Language Pathology
Background:
- Bilateral simultaneous cochlear implantation (CI) is a common procedure for profound hearing loss.
- Long-term outcomes regarding speech performance and sound localization after bilateral CI require further investigation.
Purpose of the Study:
- To assess speech performance and sound localization in adult patients five years post-bilateral CI.
- To evaluate changes in speech scores between one and five years after implantation.
Main Methods:
- A prospective, multicenter study involving 26 adult patients who received bilateral simultaneous CI with long straight electrode arrays.
- Speech perception was measured using disyllabic words in quiet and noise, with sound localization assessed in noise.
- Results were compared to data collected at one year post-implantation.
Main Results:
- Significant improvement in speech performance for the poorer ear was observed at five years compared to one year, both in quiet and noise.
- Greater speech score improvements were noted in patients with lower initial scores at one year.
- Sound localization in noise was superior with bilateral CI compared to unilateral and remained stable from one to five years.
Conclusions:
- Adults with bilateral simultaneous cochlear implants show improved speech scores between one and five years post-implantation.
- Bilateral CI is recommended for adult patients, with continued use of implants and speech therapy beneficial for long-term gains.

