Exame do potencial evocado auditivo de tronco encefálico  com estímulo de fala:  efeito do pós-mascaramento

Griz, Silvana Maria Sobral; Andrade, Kelly Cristina Lira de; Marques, Maria Consuelo Andrade; Advíncula, Karina Paes; Pinheiro, Natália dos Santos; Menezes, Pedro de Lemos

doi:10.23925/2176-2724.2019v31i3p522-525

Cited by 2 publications

(1 citation statement)

References 6 publications

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“…6 For young children, due to the incomplete myelinization of neuron axons, prolonged neural transmission and increased latency of responses are found. 20…”

Section: Discussionmentioning

confidence: 99%

The Effect of Different Stimulation Rates on Brainstem Auditory-Evoked-Potential Responses

Andrade

Frizzo

Oliveira

et al. 2023

Int Arch Otorhinolaryngol

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Introduction Auditory-evoked potentials are influenced by several factors, including polarity, filter, stimulus intensity and stimulation rate. The presentation of higher rates of stimuli per second enables the collection of a greater number of responses in a given period of time, promoting a shorter testing time; however, the collected recordings are subject to changes related to wave morphology. Objectives To compare the brainstem auditory-evoked-potential responses with click stimulus with the most commonly used stimulation rates in the clinical practice. Methods The present cross-sectional analytical study was performed with fifteen participants of both genders and normal hearing thresholds. The brainstem auditory-evoked potential was performed at four different stimulation rates (21.1, 26.7, and 27.7 stimuli/s, and a rate determined based on a mathematical calculation using the a measurement of the transmission frequency of the power grid at the time of the examination). Results We observed that the rate of 21.1 stimuli/s showed the highest amplitudes for waves I, III, and V when compared with the other rates. The rate of 26.7 stimuli/s, when compared with 27.7 stimuli/s, showed a higher amplitude for wave V. The latency if wave V was significantly lower with the rate of 21.1 stimuli/s than with 27.7 stimuli/s. Conclusions The stimulation rate interferes with wave latencies and amplitudes; its decrease from 27.7 to 21.1 stimuli/s decreases the latency of wave V and increases the amplitues and improves the morphology of waves I, III and V. In addition, we found evidence that suggests an improvement in the visualization of wave III by adjusting the stimulation rate based on a measurement of the local transmission frequency of the power grid.

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“…6 For young children, due to the incomplete myelinization of neuron axons, prolonged neural transmission and increased latency of responses are found. 20…”

Section: Discussionmentioning

confidence: 99%

The Effect of Different Stimulation Rates on Brainstem Auditory-Evoked-Potential Responses

Andrade

Frizzo

Oliveira

et al. 2023

Int Arch Otorhinolaryngol

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The effect of noise on the amplitude and morphology of cortical auditory evoked potentials

Duarte

Griz

Rocha

et al. 2022

Brazilian Journal of Otorhinolaryngology

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Exame do potencial evocado auditivo de tronco encefálico com estímulo de fala: efeito do pós-mascaramento

Abstract: Hodge SE, Menezes DC, Brown KD, Grose JH. Forward Masking of the Speech-Evoked Auditory Brainstem Response. Otology & Neurotology. 2018; 39(2):150–157.

Cited by 2 publications

References 6 publications

The Effect of Different Stimulation Rates on Brainstem Auditory-Evoked-Potential Responses

The Effect of Different Stimulation Rates on Brainstem Auditory-Evoked-Potential Responses

The effect of noise on the amplitude and morphology of cortical auditory evoked potentials

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