Vestibular Function Evaluation in Endemic Diseases Combat Agents

Alcarás, Patrícia Arruda de Souza; Zeigelboim, Bianca Simone; Corazza, Maria Cristina Alves; Lüders, Débora; Marques, Jair Mendes; Lacerda, Adriana Bender Moreira de

doi:10.4236/health.2021.132013

Cited by 3 publications

(5 citation statements)

References 20 publications

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“…Despite the evidence of risk of damage induced by agrochemical exposure to both auditory and general health described in the literature (3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)21,(23)(24)(25)(26)(27)(28) , government officials, health professionals and workers are either unaware of or ignore this issue.…”

Section: Discussionmentioning

confidence: 99%

“…Regarding hearing health, studies indicate the presence of damages on the peripheral (3,(5)(6)(7) and central (3,(8)(9)(10)(11) auditory system as well as hazardous effects on the vestibular system (6,12,13) . Impairments can be observed in the motility of the outer hair cells within the organ of Corti, progressing to the inner hair cells, auditory nerve, brainstem, and cortical regions, while in the vestibular auditory system, the author found lesions in the hair cells of the crista ampullaris in the saccule and the utricle (3) .…”

Section: Introductionmentioning

confidence: 99%

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Audiological findings of family farmers exposed to pesticides

Lobato,

Alcarás,

França

et al. 2023

CoDAS

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Purpose To analyze the possible differences among the hearing of farmers and their families when compared to the population not exposed to pesticides. Methods Cross-sectional study with 70 smallholder family farmers (research group), with the mean age of 39.7 years, of both sexes and a mean of 23.7 years of exposure to pesticides. We included a control group with 71 participants of both sexes with the mean age of 39.5 years, not exposed to either noise or chemical substances, to compare the results. In stage 1, both groups were submitted to conventional and high-frequency audiometry, and acoustic immittance. In stage 2, only people with normal hearing were submitted to the evoked otoacoustic emissions and suppression effect on transient otoacoustic emissions. Results Significant differences were observed between the groups in the conventional pure-tone and in the high-frequency audiometry, as well as in the acoustic reflex. The most affected frequencies in the conventional pure-tone audiometry ranged from 3 to 6 kHz and, in the high-frequency audiometry, from 9000 to 11200 Hz. As for the transient otoacoustic emissions, the worse suppression effect results were found in the research group. Conclusion There were differences among the hearing of family farmers and the control group. The conventional auditory thresholds are related to the group, age and sex. Farming is associated with impairments in the basal region of the cochlea, absence of acoustic reflex, reduced signal-to-noise ratio of the transient otoacoustic emissions, and dysfunction in the olivocochlear efferents of the auditory system.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Audiological findings of family farmers exposed to pesticides

Lobato,

Alcarás,

França

et al. 2023

CoDAS

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“…Apesar da evidência do risco dos danos decorrentes da exposição aos agrotóxicos na saúde auditiva e na saúde geral descritos na literatura (3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)21,(23)(24)(25)(26)(27)(28) governantes, profissionais da saúde e trabalhadores desconhecem ou ignoram essa questão.…”

Section: Discussionunclassified

“…Na saúde auditiva, estudos mostram efeitos nocivos no sistema auditivo periférico (3,(5)(6)(7) e central (3,(8)(9)(10)(11) , bem como efeitos danosos no sistema vestibular (6,12,13) . Os danos podem ser observados na motilidade das células ciliadas externas do órgão de Corti, progredindo para células ciliadas interna, nervo auditivo, tronco encefálico e regiões corticais, enquanto que no sistema auditivo vestibular, autor aponta lesões nas células ciliadas da crista da ampola do sáculo e do utrículo (3) .…”

Section: Introductionunclassified

Achados audiológicos de agricultores familiares paranaenses expostos a agrotóxicos

Lobato,

Alcarás,

França

et al. 2023

CoDAS

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RESUMO Objetivo Analisar as possíveis diferenças na audição de agricultores e suas famílias em comparação com população não exposta aos agrotóxicos. Método Estudo transversal, com 70 participantes (grupo pesquisa), com média de idade de 39,7 anos, de ambos os sexos, proprietários de pequenos estabelecimentos agrícolas vinculados a agricultura familiar e tempo de exposição médio aos agrotóxicos de 23,7 anos. Um grupo controle com 71 participantes de ambos os sexos, sem exposição a ruído e agentes químicos, com idade média de 39,5 anos, foi incluído para a comparação dos resultados. Na etapa 1, ambos os grupos foram submetidos a audiometria convencional e de altas frequências e imitanciometria. Na etapa 2, somente os normoouvintes foram submetidos as emissões otoacústicas evocadas e efeito de supressão das emissões otoacústicas transientes. Resultados Observou-se diferenças significativas entre os grupos para audiometria tonal convencional e de altas frequências, e no reflexo acústico. As frequências mais afetadas na audiometria tonal convencional foram 3 a 6kHz e na audiometria de altas frequências foram as frequências de 9.000 e 11.200 Hz. Nas emissões otoacusticas transientes, observou-se no efeito de supressão piores resultados no grupo de pesquisa. Conclusão Conclui-se que houve diferenças na audição dos agricultores familiares em comparação com o grupo controle. Os limiares auditivos convencionais estão relacionados em função do grupo, idade e gênero. O trabalho na agricultura está associado com o comprometimento na região basal da cóclea, à ausência de reflexo acústico, à redução da relação sinal/ruído das emissões otoacústicas transientes e à disfunção do sistema auditivo eferente olivococlear.

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“…Such a change is caused by the inhibition of acetylcholinesterase, which in turn leads to an accumulation of acetylcholine in the peripheral and central auditory pathways [1][2][3][4], affecting the action potential of the efferent system from the superior olivary nucleus to the cochlea [3,5,6]. This way, in humans the exposure to pesticides including organophosphate and/or pyrethroid, either alone or in combination with noise, damages the peripheral auditory system [7][8][9][10] and the central auditory functions [3,[11][12][13][14][15][16][17][18][19][20][21][22] as well as vestibular function [8,10,21].…”

Section: Introductionmentioning

confidence: 99%

Effects of Noise Associated with Pesticides in the Hearing and Vestibular Systems of Endemic Disease Combat Agents

Lacerda¹,

Alcarás²,

Corazza³

et al. 2022

Pesticides - Updates on Toxicity, Efficacy and Risk Assessment

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The current study aimed to assess the effect of the concomitant exposure to noise and pesticides on the auditory and vestibular systems of endemic disease combat agents. The sample comprised 58 participants, males, divided into two groups. The exposed group (EG) comprised 40 agents, adults, exposed to the noise and pesticides. The control group (CG) comprised 18 participants, without exposure, paired according to age range and gender. The participants from both groups underwent conventional pure-tone audiometry and high-frequency audiometry, evoked otoacoustic emissions and suppression of the emissions, immittance testing, brainstem evoked response audiometry, and dichotic digits test. The vestibular assessment was only carried out in the experimental group. Results showed no difference between the groups in the findings of the pure-tone audiometry and suppression effect of the evoked otoacoustic emissions. Difference was evidenced between the groups in the acoustic reflex testing, the tympanometry, the brainstem evoked response audiometry, and the dichotic digits test, with worse results among the EG. In the vestibular assessment, there was the prevalence of altered tests among EG in 36.4% of the cases, more evidence for the peripheral vestibular dysfunction. In conclusion, noise and pesticide exposure impaired the auditory and vestibular systems of endemic disease control agents.

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Vestibular Function Evaluation in Endemic Diseases Combat Agents

Cited by 3 publications

References 20 publications

Audiological findings of family farmers exposed to pesticides

Audiological findings of family farmers exposed to pesticides

Achados audiológicos de agricultores familiares paranaenses expostos a agrotóxicos

Effects of Noise Associated with Pesticides in the Hearing and Vestibular Systems of Endemic Disease Combat Agents

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