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Hearing improvement achieved by different cochlear implantation techniques on the same and contralateral ears
1Department of Oto-Rhino-Laryngology, Semmelweis University, Budapest, Hungary.
Acta Oto-Laryngologica
|January 1, 1992
Summary
Cochlear implantation techniques, including extracochlear and round window methods, show comparable speech reception results. Long-term outcomes and surgical approaches for cochlear implants are also discussed.
Area of Science:
- Otorhinolaryngology
- Biomedical Engineering
- Neurosurgery
Background:
- Cochlear implantation has been performed since 1985.
- Various implantation techniques and receiver types have been employed over time.
- Early extracochlear implants demonstrated efficacy through adjusted current levels.
Purpose of the Study:
- To evaluate audiological results of different cochlear implantation techniques.
- To compare speech reception outcomes between round window and intracochlear implants.
- To outline surgical techniques, fixation methods, and long-term outlook for cochlear implantation.
Main Methods:
- Review of cochlear implantation procedures performed since 1985.
- Comparison of speech reception in patients with extracochlear, round window, and intracochlear implants.
- Assessment of contralateral hearing six months post-operation.
Main Results:
- Extracochlear implants initially showed good results due to controlled current adjustments.
- No significant differences in speech reception were found between round window and intracochlear implantation.
- Contralateral hearing was observed in some patients at specific frequencies six months after surgery.
Conclusions:
- Different cochlear implantation techniques yield similar speech reception performance.
- Surgical techniques and fixation methods are crucial for long-term cochlear implant success.
- Further research is needed to fully understand the long-term benefits and contralateral hearing effects.