Estabilidade dos potenciais evocados auditivos em indivíduos adultos com audição normal

Matas, Carla Gentile; Hataiama, Natália Moribe; Gonçalves, Isabela Crivellaro

doi:10.1590/s1516-80342011000100008

Cited by 16 publications

(34 citation statements)

References 17 publications

(20 reference statements)

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“…For P3 potential there was no difference between the ears (Figure 2), considering latency and amplitude, which corroborates with current study 19 which was carried out with binaural stimulation and analyzed values only one ear, for possible absence of difference between them 20,21 . Other studies also showed no difference between right and left ears in the latency of P3 potential, and amplitude was not considered, corroborating the findings of this, as other authors 22 consider the latency and amplitude of P3 potential it was not found any statistically significant differences.…”

Section: Discussionsupporting

confidence: 89%

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Potencial evocado auditivo de longa latência: diferenças na forma de contagem do estímulo raro

et al. 2016

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Purpose: to identify if there are differences in the findings of Long Latency Auditory Evoked Potencial for latency and amplitude in different ways of counting the rare stimulus, being mentally counting or marking on paper (without memorizing). Methods: this study was prospective and transversal. The sample consisted of convenience and comprised by 49 subjects, including 29 females and 20 males. The following procedures were performed: Visual inspection of the external auditory canal, pure tone audiometry, acoustic emittance measures and long latency auditory evoked potentials, which was performed twice, one after the other, with individuals paying attention to the rare stimulus, always starting counting mentally and after marking on a paper. Results: there were significant differences between the ears to the P1, P2 latencies and amplitude of N1 for the method of marking on paper and the amplitude of P2 in both methods but with all values within the range normality. In addition, a statistically significant difference was also evident when comparing genders, being found larger latency values of P2 and N2 for males in both counting methods of the rare stimuli. The amplitude of P1, P2 and P3 was lower in males in different ways to count, being in P2 the only difference in the method mentally counting. When comparing the methods, there was a statistically significant difference only to the latency of P2 which was higher values for the method of marking on paper. Conclusion: there were no differences for the latencies and amplitudes of the long latency potentials in comparison of the rare stimulus score (mentally counting and marking on paper) for almost all potentials except for the potential P2 regarding to amplitude and latency. Keywords: Evoked Potentials, Auditory; Hearing; Auditory Perception RESUMO Objetivo: identificar se existe diferença nos achados do Potencial Evocado Auditivo de Longa Latência em relação à latência e amplitude, em diferentes modos de contagem do estimulo raro, sendo contando mentalmente ou marcando no papel (sem memorizar). Métodos: esse estudo teve caráter prospectivo e transversal. A amostra foi composta por conveniência sendo constituída por 49 indivíduos, sendo 29 do gênero feminino e 20 do gênero masculino. Foram realizados os seguintes procedimentos: Inspeção Visual do Meato Acústico Externo, Audiometria Tonal Liminar, Medidas de Imitância Acústica e Potencial Evocado Auditivo de Longa Latência, o qual foi realizado duas vezes, uma após a outra, com os indivíduos atentando ao estímulo raro, começando sempre contando mentalmente e após marcando em um papel. Resultados: houve diferença estatisticamente significante entre as orelhas para as latências de P1, P2 e amplitude de N1 para o método de marcação no papel, da latência de N1 para o método de contagem mental dos estímulos raros, e da amplitude de P2 em ambos os métodos, porém com todos os valores dentro da faixa de normalidade. Além disso, a diferença estatisticamente significante também foi evidente na comparação entre os...

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Section: Discussionsupporting

confidence: 89%

“…Our study corroborates the aforementioned study, as there was no significant difference for the finding as to latency. In the literature there was also the rare stimulus counting in two ways namely: counting mentally 27 , counting mentally and raising the hand 21,26,28 to hear it and after, count aloud 21,29 .…”

Section: Resultsmentioning

confidence: 99%

Potencial evocado auditivo de longa latência: diferenças na forma de contagem do estímulo raro

et al. 2016

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“…Therefore, the diagnosis suggests a possible alteration in the auditory system up to the level of the brainstem. The BAEP can give electrophysiological evidence on the auditory processing of linguistic information (10) . As such, the alteration observed with the BAEP in the second case, associated with normal auditory thresholds, suggests that speech discrimination in the presence of noise may be impaired.…”

Section: Discussionmentioning

confidence: 99%

Achados otológicos em pacientes pós-infecção pelo zika vírus: estudos de caso

Martins

Rodrigues²,

Santos

et al. 2017

Audiol., Commun. Res.

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The Zika virus is transmitted between humans by the Aedes aegypti mosquito and has become a public health emergency, as declared by the World Health Organization. Studies have reported the virus to be associated with hearing alterations in patients, following infection. This study was conceived in view of the importance of hearing for communication, associated with the limited number of reports on the impact of Zika virus on the hearing system of adults. The aim of the study was to characterize the otological findings in two adult patients, following infection with the Zika virus. The otological findings observed in two outpatients of an otorhinolaryngology service were described, both of whom reported hearing complaints immediately following the clinical symptoms of Zika virus infection. Both adult patients reported the following symptoms: discomfort, skin rash, joint pain, auricular fullness, and hearing loss. Serologic testing (IgG) for Zika virus was performed. The audiological findings were unilateral peripheral hearing loss in one of the patients, alterations in contralateral acoustic reflexes in both patients, and alteration in the brainstem auditory-evoked potential in one patient. The audiological findings demonstrate possible neuronal involvement in the manifested complaints, whether or not associated with the peripheral component, in patients infected with Zika virus. Keywords

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“…previas al examen ningún medicamento que pueda generar algún tipo de estimulación, o estimulantes como cafeína, té, chocolate, cigarrillo u otros que puedan afectar el sistema nervioso central (de Miranda et al, 2012). Igualmente, como criterio de exclusión, estudios consideraron la presencia de pérdida auditiva, los trastornos de procesamiento auditivo, trastornos o déficit del lenguaje y/o cualquier compromiso clínico o cognitivo que impidiese o dificultase la realización de los exámenes, además, como primer paso, los sujetos deben ser evaluados usando la otoscopía, impendaciometría y potenciales evocados auditivos de tronco encefálico, con el fin de conocer el estado de la vía auditiva (Massa et al, 2011;Matas et al, 2011;Muñoz-Avilés et al;Didoné et al).…”

Section: Introductionunclassified

Morfología de los Potenciales Evocados Auditivos de Latencia Tardía P300 y su Rol en la Evaluación de la Conducta Suicida

et al. 2020

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FIGUEROA, S. C.; OTZEN, T. ; ROMERO, M. F. & DÍAZ, F. M. V. Morfología de los potenciales evocados auditivos de latencia tardía p300 y su rol en la evaluación de la conducta suicida. Int. J. Morphol., 38(2):356-362, 2020. RESUMEN:El suicidio es un problema de salud a nivel mundial, siendo la conducta suicida uno de los predictores de mortalidad por suicidio; sin embargo, su valoración aún sigue siendo compleja. Aunque la cantidad de literatura que ha abordado distintas perspectivas de la conducta suicida es abundante, se requiere ahondar en nuevos métodos que permitan una valoración rápida y objetiva de ésta, proporcionando a los clínicos y pacientes, un sistema de evaluación que registre los cambios de estados emocionales de manera dinámica. El objetivo de este manuscrito fue proporcionar una visión general de la morfología de los potenciales evocados auditivos de latencia tardía p300 y su rol en la evaluación de la conducta suicida.

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Estabilidade dos potenciais evocados auditivos em indivíduos adultos com audição normal

Cited by 16 publications

References 17 publications

Potencial evocado auditivo de longa latência: diferenças na forma de contagem do estímulo raro

Potencial evocado auditivo de longa latência: diferenças na forma de contagem do estímulo raro

Achados otológicos em pacientes pós-infecção pelo zika vírus: estudos de caso

Morfología de los Potenciales Evocados Auditivos de Latencia Tardía P300 y su Rol en la Evaluación de la Conducta Suicida

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