| Full text | |
| Author(s): |
Leite, Renata Aparecida
[1]
;
Leite Magliaro, Fernanda Cristina
[1]
;
Raimundo, Jeziela Cristina
[2]
;
Gandara, Mara
[2]
;
Garbi, Sergio
[2]
;
Bento, Ricardo Ferreira
[2]
;
Matas, Carla Gentile
[1]
Total Authors: 7
|
| Affiliation: | [1] Univ Sao Paulo, Curso Fonoaudiol, Sao Paulo, SP - Brazil
[2] Univ Sao Paulo, Fundacao Otorrinolaringol, Hosp Clin, Ambulatorio Saude Audit Reouvir, Sao Paulo, SP - Brazil
Total Affiliations: 2
|
| Document type: | Journal article |
| Source: | Brazilian Journal of Otorhinolaryngology; v. 84, n. 1, p. 66-73, JAN-FEB 2018. |
| Web of Science Citations: | 3 |
| Abstract | |
Abstract Introduction The electrophysiological responses obtained with the complex auditory brainstem response (cABR) provide objective measures of subcortical processing of speech and other complex stimuli. The cABR has also been used to verify the plasticity in the auditory pathway in the subcortical regions. Objective To compare the results of cABR obtained in children using hearing aids before and after 9 months of adaptation, as well as to compare the results of these children with those obtained in children with normal hearing. Methods Fourteen children with normal hearing (Control Group - CG) and 18 children with mild to moderate bilateral sensorineural hearing loss (Study Group - SG), aged 7-12 years, were evaluated. The children were submitted to pure tone and vocal audiometry, acoustic immittance measurements and ABR with speech stimulus, being submitted to the evaluations at three different moments: initial evaluation (M0), 3 months after the initial evaluation (M3) and 9 months after the evaluation (M9); at M0, the children assessed in the study group did not use hearing aids yet. Results When comparing the CG and the SG, it was observed that the SG had a lower median for the V-A amplitude at M0 and M3, lower median for the latency of the component V at M9 and a higher median for the latency of component O at M3 and M9. A reduction in the latency of component A at M9 was observed in the SG. Conclusion Children with mild to moderate hearing loss showed speech stimulus processing deficits and the main impairment is related to the decoding of the transient portion of this stimulus spectrum. It was demonstrated that the use of hearing aids promoted neuronal plasticity of the Central Auditory Nervous System after an extended time of sensory stimulation. (AU) | |
| FAPESP's process: | 12/18633-7 - Evoked auditory potentials with speech stimulus in children with hearing aid |
| Grantee: | Renata Aparecida Leite |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |