ArticleCoDAS2026
Hearing aid fitting: analysis of the impact on the auditory system during the first year of use in moderate and severe hearing loss.
Article in CoDAS, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Authors and funding
4 authors.
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Abstract
purposeTo investigate the behavior of the auditory system in people's first year of hearing aid use.
methodsThe study included 24 individuals of both sexes with moderate and severe sensorineural hearing loss. The first data collection stage occurred before fitting the hearing aids, through the P300 electrophysiological examination and the Portuguese Sentence List test. The second and third stages occurred 6 and 12 months after starting rehabilitation, applying these two tests and the Hearing Handicap Inventory for Adults or Hearing Handicap Inventory for the Elderly.
resultsThe P300 latency and amplitude did not differ between the stages with either tone-burst or speech stimulus. The post-fitting hearing thresholds allowed accessibility to speech sounds, therefore differing between stage 1 and stages 2 and 3, with no difference between the last two. There was evidence of improved speech perception throughout the three phases, particularly in individuals with moderate hearing loss. The self-assessment questionnaire showed that the use of hearing aids reduced perceived participation restrictions in emotional and social contexts.
conclusionDespite the lack of changes in electrophysiological measurements during the first year of use, speech perception (recognition) improved. Users also reported an improvement in quality of life, highlighting the benefits of using hearing aids.
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