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Published on: October 11, 2024
Residual hearing preservation using the suprameatal approach for cochlear implantation
Christoph Arnoldner1, Wolfgang Gstoettner, Dominik Riss
1Department of Otorhinolaryngology, Medical University of Vienna, Vienna, Austria. christoph.arnoldner@meduniwien.ac.at
Wiener Klinische Wochenschrift
|August 23, 2011
Summary
This study evaluated hearing preservation in cochlear implantation for electric-acoustic stimulation using a suprameatal approach. Results showed mixed hearing preservation, with some patients retaining partial hearing and others experiencing complete loss.
Area of Science:
- Otolaryngology
- Neurosurgery
- Audiology
Background:
- Cochlear implantation for electric-acoustic stimulation (EAS) is a standard treatment for high-frequency hearing loss with residual low-frequency hearing.
- The suprameatal approach is a less invasive surgical technique for cochlear implantation compared to the standard mastoidectomy.
Observation:
- Five patients (mean age 48.2 years) received cochlear implants (Med El Combi 40+, Pulsar) with various electrodes (Custom made, Flex soft, Flex EAS).
- Follow-up averaged 35.6 months (range 24-77 months) to assess residual hearing preservation.
Findings:
- Partial hearing preservation was observed in three patients.
- Two patients experienced a complete loss of residual hearing.
Implications:
- The suprameatal approach demonstrated the possibility of preserving residual hearing in cochlear implantation for EAS, though rates were lower than with the mastoidectomy approach.
- Further research and experience are needed to determine if the suprameatal technique is fully recommended for EAS cochlear implantation.