Potenciais evocados auditivos de tronco encefálico em adultos em posição de repouso e em movimentação

Abstract

Purpose: Recording the evoked auditory brainstem response, in resting conditions and movement for the same individual, using new equipment/ system Integrity and verifying the agreement of these responses when compared to a conventional gold device/system standard in the market. Methods: Thirty normal-hearing adults from both genders, aged 18 to 30 years, were submitted to Auditory Brainstem Response (ABR). Two devices, a device/system Integrity, using bluetooth technology, the conditions of rest and motion and other equipment/conventional system were used to record responses in the same individual. Results: The comparison between the absolute and interpeak latencies observed in conditions of rest and motion, equipment Integrity are similar. The examination times observed in both devices, in the resting are the same. The acquisition time ABR, provided movement is greater than the resting condition, the Integrity equipment. Conclusion: Values were obtained for normal ABR in normal hearing adults in equipment/system Integrity, which are the same for the conditions of the individual at rest and in motion. The latencies in the two devices are equivalent in the resting condition, there was an agreement between the values of latencies, equipment Integrity, on the conditions of rest and motion.Keywords: Evoked potentials, Auditory; Hearing; Brain stem; Electrophysiology; Adult RESUMO Objetivo: Registrar os potenciais evocados auditivos de tronco encefálico nas condições de repouso e movimento, no mesmo indivíduo, utilizando o novo equipamento/sistema Integrity, e verificar a concordância das respostas, quando comparadas a um equipamento/sistema convencional, padrão-ouro no mercado. Métodos: Trinta adultos com audição normal, de ambos os gêneros, entre 18 e 30 anos, foram submetidos ao Potencial Evocado Auditivo de Tronco Encefálico. Para registro das respostas no mesmo indivíduo, foram usados dois equipamentos, um deles (Integrity) com tecnologia bluetooth, nas condições de repouso e movimento e outro, equipamento/sistema convencional, na condição de repouso. Resultados: A comparação entre as latências absolutas e interpicos observada nas condições de repouso e movimento, no equipamento Integrity, foi de equivalência. Os tempos de exame observados nos dois equipamentos, na condição de repouso, foram iguais. O tempo de aquisição do potencial evocado auditivo, na condição de movimento, foi maior que na condição de repouso, no equipamento Integrity. Conclusão: Os valores de referência em adultos ouvintes normais no equipamento Integrity foram os mesmos para as condições de repouso e em movimento. As latências obtidas nos dois equipamentos foram equivalentes na condição repouso. Houve concordância entre os valores das latências no equipamento Integrity, nas condições de repouso e de movimento.

Brainstem Auditory Evoked Potentials in infants aged 1 to 24 months during a hearing health care service

“…Some factors may have influenced this finding, referring to the profile of the babies in the present study, because at the ages of 6 to 24 months of age, babies do not sleep easily for the proper examination, which may have influenced recording of wave I. However, a Brazilian study ( 20 ), which analyzed probable differences in absolute latencies and interpeak intervals between the assessed situations, asleep and awake, with the same equipment used in the current study (Integrity V500), did not find statistically significant differences ( 20 ). Another possibility for the increase in the absolute latency of wave I could be the features of the equipment, recording wave I slightly above the predicted standard.…”

Mismatch Negativity in Children with Deficits in Auditory Abilities

“…The inclusion criteria considered for the study and control groups were the following: all children must have presented normal hearing thresholds 12 and normal auditory brainstem responses (ABRs) 13 elicited with click stimuli. The ABR was recorded prior to MMN to ensure that the participants presented normal auditory pathway synchrony.…”