J Audiol Otol.
2021 Jul;25(3):146-151. 10.7874/jao.2021.00038.
Changes of Temporal Processing and Hearing in Noise after Use of a Monoaural Hearing Aid in Patients with Sensorineural Hearing Loss: A Preliminary Study
- Affiliations
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- 1Department of Otorhinolaryngology-Head and Neck Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
- 2Department of Otolaryngology, Hanil General Hospital, Seoul, Korea
- 3Department of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Kyungpook National University, Daegu, Korea
- 4Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, Korea
- KMID: 2518454
- DOI: http://doi.org/10.7874/jao.2021.00038
Abstract
- Background and Objectives
The relationship between hearing aid (HA) use and improvement in cognitive function is not fully known. This study aimed to determine whether HAs could recover temporal resolution or hearing in noise functions.
Materials and Methods
We designed a prospective study with two groups: HA users and controls. Patients older than 45 years, with a pure tone average threshold of worse than 40 dB and a speech discrimination score better than 60% in both ears were eligible. Central auditory processing tests and hearing in noise tests (HINTs) were evaluated at the beginning of the study and 1, 3, 6, and 12 months after the use of a monaural HA in the HA group compared to the control group. The changes in the evaluation parameters were statistically analyzed using the linear mixed model.
Results
A total of 26 participants (13 in the HA and 13 in the control group) were included in this study. The frequency (p<0.01) and duration test (p=0.02) scores showed significant improvements in the HA group after 1 year, while the HINT scores showed no significant change.
Conclusions
After using an HA for one year, patients performed better on temporal resolution tests. No improvement was documented with regard to hearing in noise.
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