Auditory Brainstem Response in Term and Preterm Infants with Neonatal Complications: The Importance of the Sequential Evaluation

Silva, Daniela da; Lopez, Priscila Suman; Mantovani, Jair Cortez

doi:10.1055/s-0034-1378137

Cited by 7 publications

(15 citation statements)

References 25 publications

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“…The reduction in latency values is related to the gradual process of myelination of the central structures and maturation of central auditory pathways, which are processes of cortical organization that are necessary for the proper development of hearing and language (1,6) . The decrease in latency had also been found in studies with another type of Auditory Evoked Potential (22,23) . In relation to gestational age and maturation of the auditory pathway, it was observed that the higher gestational age, the greater the maturation of wave P1, which was indicated by the decrease in latency of this wave (Table 2).…”

Section: Discussionsupporting

confidence: 61%

Audição e linguagem em crianças nascidas a termo e pré-termo

Costa

Quinto

Didoné

et al. 2016

Audiol., Commun. Res.

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Purpose: To examine the maturation of the auditory pathway of children who were born at term and preterm, during 2 years and 6 months. Moreover, we tried to compare this maturation to the development of language skills of these children. Methods: It is a longitudinal and comparative study, which presents a clinical outcome related to the observation and analysis of auditory electrophysiological responses at the first month of life and 2 years and at 6 months old. The sample consisted of eight children, of both genders, being five born at term and three at preterm. Cortical Auditory Evoked Potential and the language evaluation were carried out through the Behavioral Observation Protocol. Results: Both term and premature babies passed through a period of maturation of the auditory pathway. In the correlation of gestation and maturation of the auditory pathway, we observed that the higher gestational age, the higher was the maturation of P1 wave. There was no correlation between language evaluation results and the maturation of the auditory pathway. Conclusion: Based on the results of this study, we concluded that there was maturation of the auditory pathway in the two-year period in both groups. A correlation between gestational age and maturation of P1 was observed, which shows that the higher is the gestational age, the greater is the maturity of this component. Regarding the language skills, no correlation with the maturation of this sample was noticed.Keywords: Hearing; Evoked potentials, Auditory; Infant, Premature; Child language; Gestational age RESUMO Objetivo: Analisar a maturação da via auditiva de crianças nascidas a termo e pré-termo, ao longo de dois anos e seis meses e comparar a maturação auditiva com o desenvolvimento das habilidades linguísticas dessas crianças. Métodos: O estudo teve como desfecho clínico a observação e análise das respostas eletrofisiológicas auditivas de crianças, durante o primeiro mês de vida e aos 2 anos e 6 meses de idade. A amostra constituiu-se de oito crianças, de ambos os gêneros, sendo cinco nascidas a termo e três nascidas pré-termo. Realizou-se o Potencial Evocado Auditivo Cortical e a avaliação de linguagem, por meio do Protocolo de Observação Comportamental. Resultados: Tanto os bebês nascidos a termo como os prematuros passaram por um período de maturação da via auditiva. Na correlação da idade gestacional e maturação da via auditiva, observou-se que, quanto maior a idade gestacional, maior a maturação da onda P1. Não houve correlação entre os resultados da avaliação de linguagem e a maturação da via auditiva. Conclusão: Houve maturação da via auditiva no período de dois anos e seis meses, em ambos os grupos estudados. Observou-se correlação entre Idade Gestacional e a maturação de P1, demonstrando que, quanto maior a Idade Gestacional, maior a maturação deste componente. Quanto às habilidades de linguagem, não houve correlação com a maturação da via auditiva.Descritores: Audição; Potenciais evocados auditivos; Prematuro; Linguagem infantil; Idade gestacio...

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Section: Discussionsupporting

confidence: 61%

Audição e linguagem em crianças nascidas a termo e pré-termo

Costa

Quinto

Didoné

et al. 2016

Audiol., Commun. Res.

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“…2 The mechanism of brain injury is thought to result from parenchymal damage and impaired cortical development. 2 In addition, Silva et al 8 recently reported that peri-/intraventricular hemorrhages influence alterations in auditory brain stem responses in preterm infants.…”

Section: Discussionmentioning

confidence: 99%

Superficial Siderosis after Germinal Matrix Hemorrhage

Yilmaz¹,

Meyer

Gortner

et al. 2016

AJNR Am J Neuroradiol

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Here we report that superficial siderosis is a common MR imaging finding in the first year of life of patients with a history of germinal matrix hemorrhage, but it dissolves and has a low prevalence thereafter. A prospective analysis of its initial severity and speed of dissolution during this first year might add to our understanding of the pathophysiology of neurodevelopmental impairment after germinal matrix hemorrhages.

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“…Other authors also emphasize that neural conduction is influenced by maturation and the diagnostic conclusion depends on this factor. 29 …”

Section: Discussionmentioning

confidence: 99%

Outcomes of Automated Auditory Evoked Potential Performed in Different Settings and the Factors Associated with Referred Cases

Silva

Ribeiro

Castilho

et al. 2017

Int Arch Otorhinolaryngol

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Introduction For the population with risk factors for hearing loss, the first option to assess the hearing status is the performance of the automated brainstem auditory evoked potential (BAEP) test because of its efficacy in identifying retrocochlear hearing loss. Objective To verify the outcomes of automated BAEP performed in different settings as well as the factors associated with the prevalence of hearing impairment. Methods Cross-sectional study conducted from October of 2014 to May of 2015. The sample consisted of 161 infants with at least one risk factor for hearing loss who underwent automated BAEP during the hospital stay or at the outpatient clinic. After 30 days, the altered cases were referred for BAEP diagnosis. Results One hundred and thirty-eight infants (86%) had a result of “pass” and 23 (14%) of “failure” in the automated BAEP. There was no statistically significant difference in the rate of “referred” results between examinations performed in different settings. The infants' ages did not influence the number of abnormal cases. All of the 23 infants who presented a “referred” result in the automated BAEP, unilateral or bilateral, were sent for BAEP diagnosis, and out of these, 9 (39%) remained with at least some degree of alteration. The average age of diagnosis was 2.7 months. Conclusion The results of the automated BAEP were similar when performed during hospitalization or after discharge. Neither the age at the examination nor the gender of the patient influenced the prevalence of hearing loss.

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Auditory Brainstem Response in Term and Preterm Infants with Neonatal Complications: The Importance of the Sequential Evaluation

Cited by 7 publications

References 25 publications

Audição e linguagem em crianças nascidas a termo e pré-termo

Audição e linguagem em crianças nascidas a termo e pré-termo

Superficial Siderosis after Germinal Matrix Hemorrhage

Outcomes of Automated Auditory Evoked Potential Performed in Different Settings and the Factors Associated with Referred Cases

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