Auditory pathways’ maturation after cochlear implant via cortical auditory evoked potentials ✩✩Please cite this article as: Silva LAF, Couto MIV, Tsuji RK, Bento RF, Matas CG, Carvalho ACM. Auditory pathways’ maturation after cochlear implant via cortical auditory evoked potentials. Braz J Otorhinolaryngol. 2014;80:131-7.,✩✩✩✩Study conducted at work performed in the Departament of Phisotherapy, Phonoaudiology and Occupational Therapy and in Departament of Otorhinolaryngology, Faculdade de Medicina, Univers

Silva, Liliane Aparecida Fagundes; Couto, Maria Inês Vieira; Tsuji, Robinson Koji; Bento, Ricardo Ferreira; Matas, Carla Gentile; Carvalho, Ana Claudia Martinho de

doi:10.5935/1808-8694.20140028

Cited by 14 publications

(6 citation statements)

References 19 publications

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“…Contrary to this research, other studies 37 38 39 in which SPL did not correlate with age concluded that the factors affecting the performance of cochlear implant users in speech perception tests are the earlier activation of CI and the use of hearing aids in the contralateral ear. …”

Section: Discussioncontrasting

confidence: 95%

Auditory Speech Perception Development in Relation to Patient's Age with Cochlear Implant

Ciscare

Mantello

Fortunato-Queiroz

et al. 2016

Int Arch Otorhinolaryngol

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Introduction A cochlear implant in adolescent patients with pre-lingual deafness is still a debatable issue. Objective The objective of this study is to analyze and compare the development of auditory speech perception in children with pre-lingual auditory impairment submitted to cochlear implant, in different age groups in the first year after implantation. Method This is a retrospective study, documentary research, in which we analyzed 78 reports of children with severe bilateral sensorineural hearing loss, unilateral cochlear implant users of both sexes. They were divided into three groups: G1, 22 infants aged less than 42 months; G2, 28 infants aged between 43 to 83 months; and G3, 28 older than 84 months. We collected medical record data to characterize the patients, auditory thresholds with cochlear implants, assessment of speech perception, and auditory skills. Results There was no statistical difference in the association of the results among groups G1, G2, and G3 with sex, caregiver education level, city of residence, and speech perception level. There was a moderate correlation between age and hearing aid use time, age and cochlear implants use time. There was a strong correlation between age and the age cochlear implants was performed, hearing aid use time and age CI was performed. Conclusion There was no statistical difference in the speech perception in relation to the patient's age when cochlear implant was performed. There were statistically significant differences for the variables of auditory deprivation time between G3 - G1 and G2 - G1 and hearing aid use time between G3 - G2 and G3 - G1.

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Section: Discussioncontrasting

confidence: 95%

Auditory Speech Perception Development in Relation to Patient's Age with Cochlear Implant

Ciscare

Mantello

Fortunato-Queiroz

et al. 2016

Int Arch Otorhinolaryngol

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“…These children were compared with their peers of same age with normal hearing to verify whether there was proper development of the auditory pathway in individuals in the study group. The authors concluded that the latency values of the wave P1 in implanted children after three months of CI activation is higher than that of normal-hearing children, with reduction occurring at four years of age (23) . Still with regard to the analysis of the results presented in Table 1, data from the Preterm Group are similar to those observed in another study (14) on the use of other electrophysiologic measure, BAEP, in neonates considered small for gestational age.…”

Section: Discussionmentioning

confidence: 99%

Potenciais evocados auditivos corticais em neonatos nascidos a termo e pré-termo

Melo

Biaggio

Rechia³

et al. 2016

CoDAS

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RESUMO Objetivo Mensurar os potenciais exógenos do potencial evocado auditivo cortical (PEAC) em neonatos nascidos a termo e pré-termo, além de compará-los, considerando as variáveis latência e amplitude dos componentes. Método Estudo transversal, prospectivo, contemporâneo e comparativo. Foram avaliados 127 neonatos; destes, foram considerados 96, após análise dos exames por três juízes, distribuídos em dois grupos: Grupo Termo: 66 neonatos e Grupo Pré-termo: 30 neonatos. Os registros do PEAC foram feitos com os neonatos posicionados no colo da mãe e/ou responsável, em sono natural, por meio de eletrodos de superfície. Foram apresentados estímulos verbais binauralmente, sendo /ba/ o estímulo frequente e /ga/ o estímulo raro, na intensidade de 70 dBNA, por meio de fones de inserção. Foi analisada a presença ou ausência dos componentes exógenos em ambos os grupos, bem como, latência e amplitude de P1 e N1. Para análise dos dados, utilizaram-se os testes pertinentes. Resultados A latência da onda P1 bilateralmente e N1 na orelha esquerda foi menor no Grupo Termo. No entanto, não houve diferença estatisticamente significante quanto à amplitude de P1 e N1 entre os grupos. Na comparação entre presença e ausência dos componentes P2 e N2, também não foi observada diferença entre os grupos. Conclusão É possível mensurar os PEAC, em neonatos nascidos a termo e pré-termo. Verificou-se influência do processo maturacional apenas na medida da latência dos componentes P1 bilateralmente e N1 na orelha esquerda, sendo estas menores no Grupo Termo.

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“…According to the literature, the auditory stimulation of deaf children before 36 months of age allows a very fast maturation of auditory system [ 8 , 28 , 29 ]. After this period, the development occurs differently from that of hearing children [ 8 , 14 , 20 ].…”

Section: Discussionmentioning

confidence: 99%

Auditory Cortical Maturation in a Child with Cochlear Implant: Analysis of Electrophysiological and Behavioral Measures

Silva

Couto

Tsuji

et al. 2015

Case Reports in Otolaryngology

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The purpose of this study was to longitudinally assess the behavioral and electrophysiological hearing changes of a girl inserted in a CI program, who had bilateral profound sensorineural hearing loss and underwent surgery of cochlear implantation with electrode activation at 21 months of age. She was evaluated using the P1 component of Long Latency Auditory Evoked Potential (LLAEP); speech perception tests of the Glendonald Auditory Screening Procedure (GASP); Infant Toddler Meaningful Auditory Integration Scale (IT-MAIS); and Meaningful Use of Speech Scales (MUSS). The study was conducted prior to activation and after three, nine, and 18 months of cochlear implant activation. The results of the LLAEP were compared with data from a hearing child matched by gender and chronological age. The results of the LLAEP of the child with cochlear implant showed gradual decrease in latency of the P1 component after auditory stimulation (172 ms–134 ms). In the GASP, IT-MAIS, and MUSS, gradual development of listening skills and oral language was observed. The values of the LLAEP of the hearing child were expected for chronological age (132 ms–128 ms). The use of different clinical instruments allow a better understanding of the auditory habilitation and rehabilitation process via CI.

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Abstract: Changes in the characteristics of cortical auditory evoked potentials can be observed in children who receive cochlear implants; these changes are related to the age of intervention, suggesting a rapid maturation of the auditory pathways after electrical stimulation.

Cited by 14 publications

References 19 publications

Auditory Speech Perception Development in Relation to Patient's Age with Cochlear Implant

Auditory Speech Perception Development in Relation to Patient's Age with Cochlear Implant

Potenciais evocados auditivos corticais em neonatos nascidos a termo e pré-termo

Auditory Cortical Maturation in a Child with Cochlear Implant: Analysis of Electrophysiological and Behavioral Measures

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