Hearing status of people occupationally exposed to ultrasonic noise

Dudarewicz, Adam; Zamojska-Daniszewska, Małgorzata; Zaborowski, Kamil; Pawlaczyk-Łuszczyńska, Małgorzata

doi:10.13075/ijomeh.1896.01816

Cited by 3 publications

(2 citation statements)

References 16 publications

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“…This may explain differences between our findings and those of other studies, which have looked at the effect of SOAEs on HTs and DPOAEs. Despite this note of uncertainty, our study confirms the results of earlier works that have shown that HTs and DPOAEs in the EHF band seem to show promise for identifying early signs of hearing loss [17,48,49].…”

Section: Discussionsupporting

confidence: 89%

Extended High Frequency Thresholds and Their Relationship to Distortion Product Otoacoustic Emissions, Hearing Acuity, Age, Gender, Presence of Spontaneous Otoacoustic Emissions, and Side of Measurement

Jedrzejczak,

Pilka,

Pastucha

et al. 2023

Applied Sciences

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Hearing is normally evaluated up to 8 kHz, even though testing can easily be performed at higher frequencies (up to 16 or 20 kHz). The range beyond 8 kHz is often referred to as the extended high frequency (EHF) range. This study aimed to explore the relationship between EHF hearing thresholds (HTs) and distortion product otoacoustic emissions (DPOAEs) in adult subjects. Also of interest were the effects of the presence of spontaneous otoacoustic emissions (SOAEs), gender, ear side, and age. The main finding was that DPOAEs, both within the standard frequency (SF) range (0.125–8 kHz) and the EHF range (10–16 kHz), decrease as thresholds deteriorate. For both ranges, DPOAEs and HTs depend on age, even for those with normal hearing, although EHFs seem to be especially affected by age. The presence of SOAEs was the only other factor that significantly influenced DPOAE level. For both DPOAEs and HTs, only minor and non-significant effects were related to gender and ear side. It was concluded that DPOAEs in the EHF range appear to be good predictors of EHF HTs. Moreover, since DPOAEs and HTs in the EHF range both correlate with age, these two measures may be suitable markers for incipient presbycusis.

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Section: Discussionsupporting

confidence: 89%

Extended High Frequency Thresholds and Their Relationship to Distortion Product Otoacoustic Emissions, Hearing Acuity, Age, Gender, Presence of Spontaneous Otoacoustic Emissions, and Side of Measurement

Jedrzejczak,

Pilka,

Pastucha

et al. 2023

Applied Sciences

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“…In all these studies on industrial workers, significant co-exposure to high frequency sound in the audio range was present. In order to mitigate the potential bias related to noise co-exposure, Dudarewicz et al (2022) used a control group that was matched to daily noise exposure level (A-weighted SPL equivalent to continuous 8-h shifts), age, sex, as well as tenure (as proxy for industrial noise exposure duration). In their cross-sectional study HTL as well as transient-evoked otoacoustic emissions (TEOAE) and distortion-product otoacoustic emissions (DPOAE) of workers with and without ultrasound exposure during work shifts (but with similar A-weighted audible noise co-exposure SPL) were compared.…”

Section: Biological Endpointsmentioning

confidence: 99%

Validity of the 1984 Interim Guidelines on Airborne Ultrasound and Gaps in the Current Knowledge

2024

Health Physics

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Airborne ultrasound is used for various purposes both in industrial and public settings, as well as being produced as a by-product by a range of sources. The International Radiation Protection Association (IRPA) published interim guidelines on limiting human exposure to airborne ultrasound in 1984, based on the limited scientific evidence that was available at that time. In order to investigate whether research since 1984 requires the development of revised exposure guidelines we considered (a) within the context of ultrasound exposure the relevance to health of the biological endpoints/mechanisms listed in the IRPA guidelines, (b) the validity of the exposure limits, and (c) whether there are biological endpoints/mechanisms not covered in the guidelines. The analysis of the available evidence showed that the biological endpoints that form the basis of the guidelines are relevant to health and the guidelines provide limits of exposure based on the evidence that was available at the time. However, the IRPA limits and their associated dosimetry were based on limited evidence, which may not be considered as scientifically substantiated. Further, there is no substantiated evidence of biological endpoints/mechanisms not covered by the IRPA guidelines. These two observations could mean that IRPA’s limits are too low or too high. Research since the IRPA guidelines has made some improvements in the knowledge base, but there are still significant data gaps that need to be resolved before a formal revision of the guidelines can be made by ICNIRP, including research needs related to health outcomes and improved dosimetry. This statement makes a number of recommendations for future research on airborne ultrasound.

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Research on the ultrasonic driving circuit of music rhythm driven method to suppress the noise of ultrasonic cleaner

Pak¹,

Kim²,

Sin³

et al. 2022

Applied Acoustics

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Hearing status of people occupationally exposed to ultrasonic noise

Cited by 3 publications

References 16 publications

Extended High Frequency Thresholds and Their Relationship to Distortion Product Otoacoustic Emissions, Hearing Acuity, Age, Gender, Presence of Spontaneous Otoacoustic Emissions, and Side of Measurement

Extended High Frequency Thresholds and Their Relationship to Distortion Product Otoacoustic Emissions, Hearing Acuity, Age, Gender, Presence of Spontaneous Otoacoustic Emissions, and Side of Measurement

Validity of the 1984 Interim Guidelines on Airborne Ultrasound and Gaps in the Current Knowledge

Research on the ultrasonic driving circuit of music rhythm driven method to suppress the noise of ultrasonic cleaner

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