A multicenter study on the audiometric findings of styrene-exposed workers

Morata, Thaís C.; Śliwińska-Kowalska, Mariola; Johnson, Ann-Chrístin; Starck, Jukka; Pawlas, Krystyna; Zamysłowska-Szmytke, Ewa; Nylén, Per; Toppila, Esko; Krieg, Edward F.; Pawlas, Natalia; Prasher, Deepak

doi:10.3109/14992027.2011.588965

Cited by 39 publications

(30 citation statements)

References 36 publications

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“…The worst PTA responses for a wide range of frequencies (0.25 -8 kHz) were found among individuals of the group exposed to the solvent [22][23][24] .…”

Section: Styrenementioning

confidence: 93%

“…Focused on the plastic and fiberglass industries, six studies found a positive association between exposure to styrene and Hearing Loss (HL) 11,[20][21][22][23][24] , four of which featured styrene exposure levels below recommended limits [20][21][22][23] . The worst PTA responses for a wide range of frequencies (0.25 -8 kHz) were found among individuals of the group exposed to the solvent [22][23][24] .…”

Section: Styrenementioning

confidence: 99%

See 1 more Smart Citation

Perda auditiva associada à exposição ocupacional a solventes orgânicos: uma revisão sistemática

Mont'Alverne

Corona

Rêgo

2016

Rev. bras. saúde ocup.

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Introduction: evidences indicate chemicals as potentially otoneurotoxic agents; however, there is no consensus as to the associations between exposure characteristics and the ototoxicity of different chemicals present in industrial environments. Objective: to review the available scientific literature in order to identify studies that point to evidence of association, or non-association, between hearing impairment and occupational exposure to organic solvents. Method: systematic review of the literature, through query on electronic databases, considering only original articles, published from January 1987 to February 2013. Results: thirty-one studies were included in the systematic review. Discussion: studies have confirmed exposure to certain solvents as a risk factor for occupational hearing loss, especially in the presence of noise. Various assessment and classification methods were used regarding cochlear and/or central hearing impairment, contributing to the understanding of the extent of chemical-induced hearing loss as well as to the identification of populations at risk. However, data on appropriate diagnostic procedures, safe levels of chemical exposure and dose-response effect have not yet been fully elucidated.

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“…The worst PTA responses for a wide range of frequencies (0.25 -8 kHz) were found among individuals of the group exposed to the solvent [22][23][24] .…”

Section: Styrenementioning

confidence: 93%

Section: Styrenementioning

confidence: 99%

Perda auditiva associada à exposição ocupacional a solventes orgânicos: uma revisão sistemática

Mont'Alverne

Corona

Rêgo

2016

Rev. bras. saúde ocup.

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“…A recent multicentre, cross-sectional study (Morata et al 2011) of workers from Sweden, Finland, and Poland found an association between styrene exposure and poorer hearing thresholds than predicted by individuals' age (when compared with ANSI S3.44 annexes A and B). The effect of noise exposure, with a mean which varied across centres between 80 and 84 dBA, did not have a significant effect on hearing, except when in combination with styrene.…”

Section: Evidence Of the Adverse Effects Of Solvents On Pure-tone Thrmentioning

confidence: 98%

Occupational Chemical-Induced Hearing Loss

Fuente¹,

McPherson²

2012

Hearing Loss

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“…In literature, evidences that exposure to organic solvents (e.g., styrene) either alone or in combination with noise has ototoxic effects, have been largely described [7,[17][18][19]. In these last studies, the effect of styrene exposure was investigated with a complete set of auditory tests, including pure tone audiometry [17,19], speech recognition tests [18], and OAE-based tests [7], to estimate the damage at the level of the cochlear outer hair cells (OHCs).…”

Section: Introductionmentioning

confidence: 99%

“…In these last studies, the effect of styrene exposure was investigated with a complete set of auditory tests, including pure tone audiometry [17,19], speech recognition tests [18], and OAE-based tests [7], to estimate the damage at the level of the cochlear outer hair cells (OHCs).…”

Section: Introductionmentioning

confidence: 99%

Extraction of Cochlear Non-linearities with the Bispectral Analysis

Chiaramello¹,

Moriconi²,

Tognola³

2014

Methods Inf Med

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SummaryObjectives: Transient Otoacoustic Emission (TEOAEs) are low intensity sounds generated by active mechanisms in the cochlea and elicited by broadband and short acoustic stimuli. TEOAEs are a quick, non-invasive, and very reliable measure to objectively assess the peripheral auditory system. In the current study, we present a recent technique to extract and evaluate non-linearities in TEOAEs, and apply it for the preliminary analysis of TEOAE recordings of a group of worker of a fiberglass manufacturing facility exposed to styrene solvent. Methods:Bispectral analysis was applied to TEOAEs to extract the quadratic frequency couplings (QFCs) in TEOAEs. Amplitude of QFCs was calculated in a group of 7 styreneexposed workers (14 ears) and compared with normative results obtained on normal hearing young adults. Results: Difference in amplitude of QFCs were found between workers and controls. In workers, TEOAE non-linear components were found in the 1.5 -4 kHz frequency range, whereas in control subjects they were found in a lower frequency region, ranging from 1 to 3 kHz. Conclusion:The amplitude of QFCs highlighted differences in TEOAEs recorded among workers and controls.

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A multicenter study on the audiometric findings of styrene-exposed workers

Abstract: Occupational exposure to styrene is a risk factor for hearing loss, and styrene-exposed workers should be included in hearing loss prevention programs.

Cited by 39 publications

References 36 publications

Perda auditiva associada à exposição ocupacional a solventes orgânicos: uma revisão sistemática

Perda auditiva associada à exposição ocupacional a solventes orgânicos: uma revisão sistemática

Occupational Chemical-Induced Hearing Loss

Extraction of Cochlear Non-linearities with the Bispectral Analysis

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