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Integrated Bimodal Fitting for Unilateral CI Users with Residual Contralateral Hearing
Gennaro Auletta1, Annamaria Franzè1, Carla Laria1
1Unit of Audiology, Department of Neuroscience, Reproductive Sciences and Dentistry, University of Naples "Federico II", via Pansini 5, 80131 Naples, Italy.
Audiology Research
|June 2, 2021
Summary
The new Adaptive Phonak Digital Bimodal (APDB) system significantly improved hearing aid performance for bimodal cochlear implant users, especially in noisy environments. This advanced bimodal fitting offers superior speech intelligibility compared to standard hearing aids.
Area of Science:
- Audiology
- Hearing Science
- Biomedical Engineering
Background:
- Bimodal cochlear implant users often experience challenges with speech understanding.
- Optimizing hearing aid fitting is crucial for enhancing auditory rehabilitation.
Purpose of the Study:
- To compare the performance of a new bimodal fitting system (APDB) with standard NAL-NL1 fittings in bimodal cochlear implant users.
- To evaluate speech intelligibility using the Phonak Naìda Link Ultra Power hearing aid with APDB versus users' existing hearing aids and NAL-NL1 fittings.
Main Methods:
- Eleven bimodal cochlear implant users participated in the study.
- Participants' hearing aids were replaced with Phonak Naìda Link Ultra Power devices.
- Speech intelligibility was assessed in quiet and noisy conditions using different fitting formulas (NAL-NL1 and APDB).
Main Results:
- The APDB fitting formula resulted in significantly better performance than users' previous hearing aids, particularly in challenging hearing situations.
- All participants showed improved performance with the APDB system.
Conclusions:
- Speech intelligibility in quiet did not significantly differ between APDB and NAL-NL1 fittings.
- A significant performance improvement was observed with APDB fittings in noisy conditions compared to NAL-NL1.
