The effects of noise upon human hearing sensitivity from 8000 to 20 000 Hz

Fausti, Stephen A.; Erickson, Donna; Frey, Richard H.; Rappaport, Bruce; Schechter, Martin A.

doi:10.1121/1.385805

Cited by 81 publications

(47 citation statements)

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“…For most individuals, the deterioration of hearing thresholds at very high frequencies will likely go unnoticed as these frequencies are not involved in day-to-day listening. However, the deterioration of hearing thresholds at EHFs may represent an early warning sign of an apparent NIHL [22,23] . NIHL is an accumulative process, and it is possible for the early effects at EHFs in these subjects to progress into a more severe hearing loss that extends to lower frequencies after many years of music exposure [8] .…”

Section: Discussionmentioning

confidence: 99%

Hearing Risk among Young Personal Listening Device Users: Effects at High-Frequency and Extended High- Frequency Audiogram Thresholds

Sulaiman

Husain²,

Seluakumaran³

2015

Int Adv Otol

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OBJECTIVE:The usage of personal listening devices (PLDs) is associated with risks of hearing loss. The aim of this study is to evaluate the effects of music exposure from these devices on high-frequency hearing thresholds of PLD users. MATERIALS and METHODS:A total of 282 young adults were questioned regarding their listening habits and symptoms associated with PLD listening. Their audiogram thresholds were determined at high (3-8 kHz) frequencies and extended high frequencies (EHFs, 9-16 kHz). The preferred listening volumes of PLD users were used to compute their overall 8-h equivalent music exposure levels (L Aeq8h ). RESULTS:Approximately 80% of the subjects were regular PLD users. Of these, 20.1% had L Aeq8h of ≥75 dBA, while 4.4% of them had L Aeq8h of ≥85 dBA, which carries a high risk of hearing damage. Compared with those exposed to L Aeq8h of <75 dBA, subjects who had L Aeq8h of ≥75 dBA reported a significantly higher incidence of tinnitus and difficulty in hearing others immediately after using PLDs. PLD users who were exposed to L Aeq8h of ≥75 dBA and had been using their devices for ≥4 years also showed significantly higher mean audiogram thresholds compared with non-users at most EHFs tested. In addition, the thresholds of PLD users at EHFs showed a weak but significant positive correlation with their L Aeq8h . CONCLUSION:The present findings suggest that excessive exposure to music among PLD users may lead to initial effects on their hearing at very high frequencies.

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Section: Discussionmentioning

confidence: 99%

Hearing Risk among Young Personal Listening Device Users: Effects at High-Frequency and Extended High- Frequency Audiogram Thresholds

Sulaiman

Husain²,

Seluakumaran³

2015

Int Adv Otol

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“…Since patients with TBI typically have been exposed to excessive noise, these patients have an increased risk of ototoxic hearing loss and should be monitored [31]. Current recommendations for ototoxicity monitoring include the assessment of hearing thresholds at frequencies up to 12 kHz or to the frequency limits of the individual's hearing [32]. These patients should be evaluated using conventional and high-frequency audiometry upon initial examination and be monitored serially for change in auditory sensitivity on a 5-day cycle throughout antibiotic therapy.…”

Section: Ototoxicitymentioning

confidence: 99%

Auditory and vestibular dysfunction associated with blast-related traumatic brain injury

Fausti¹,

Wilmington²,

Gallun³

et al. 2009

JRRD

Self Cite

187

117

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Abstract-The dramatic escalation of blast exposure in military deployments has created an unprecedented amount of traumatic brain injury (TBI) and associated auditory impairment. Auditory dysfunction has become the most prevalent individual service-connected disability, with compensation totaling more than 1 billion dollars annually. Impairment due to blast can include peripheral hearing loss, central auditory processing deficits, vestibular impairment, and tinnitus. These deficits are particularly challenging in the TBI population, as symptoms can be mistaken for posttraumatic stress disorder, mentalhealth issues, and cognitive deficits. In addition, comorbid factors such as attention, cognition, neuronal loss, noise toxicity, etc., can confound assessment, causing misdiagnosis. Furthermore, some auditory impairments, such as sensorineural hearing loss, will continue to progress with age, unlike many other injuries. In the TBI population, significant clinical challenges are the accurate differentiation of auditory and vestibular impairments from multiple, many times overlapping, symptoms and the development of multidisciplinary rehabilitation strategies to improve treatment outcomes and quality of life for these patients.

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“…Ultrasound (US) at 20 kHz is a special sound range just above the threshold of human hearing (1). The application of low-frequency (20 kHz) US has been demonstrated to be useful for increasing the efficiency and consumer safety in food processing (2), removing heavy metal (lead, mercury and arsenic) contamination in milk (3), decreasing the viscosity and particle size of milk (4) and improving the functional properties of dairy ingredients (5).…”

Section: Introductionmentioning

confidence: 99%

Spiral computed tomography evaluation of rabbit VX2 hepatic tumors treated with 20 kHz ultrasound and microbubbles

Shen

Liu

et al. 2017

Oncology Letters

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Abstract. The aim of the present study was to explore the therapeutic effect of 20 kHz ultrasound (US) and microbubbles (MBs) on rabbit VX2 liver tumors by spiral computed tomography (CT) scanning. A total of 16 New Zealand rabbits with hepatic VX2 tumors were divided into four groups: Control, MB, low-frequency US and US + MB. The treatment effect was evaluated by spiral CT scanning prior to, during and following treatment (at 0 weeks and the end of 1 and 2 weeks). The tumor growth rate was recorded. The specimens of VX2 tumors were collected for histological examination and transmission electron microscopy (TEM). No significant differences were observed between tumor areas measured by CT and pathology after 2-week treatment (P>0.05). The mean tumor growth rates in the control, MB, US and US + MB groups after 2 weeks of treatment were 385±21, 353±12, 302±14 and 154±9%, respectively (P<0.05, US + MB vs. the other three groups). Hematoxylin and eosin staining in the US + MB group revealed coagulation necrosis, interstitial hemorrhage and intravascular thrombosis. In the control, MB and US groups, tumor cells exhibited clear nuclear hyperchromatism. TEM of US + MB revealed vascular endothelial cell wall rupture, widened endothelial cell gaps, interstitial erythrocyte leakage and microvascular thrombosis, while intact vascular endothelial cells and normal erythrocytes in the tumor vessels were observed in the control, MB and US groups. A combination of 20 kHz US and MBs may effectively inhibit rabbit VX2 tumors. Spiral CT scanning is an ideal method to evaluate the US treatment on rabbit tumors.

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The effects of noise upon human hearing sensitivity from 8000 to 20 000 Hz

Cited by 81 publications

References 0 publications

Hearing Risk among Young Personal Listening Device Users: Effects at High-Frequency and Extended High- Frequency Audiogram Thresholds

Hearing Risk among Young Personal Listening Device Users: Effects at High-Frequency and Extended High- Frequency Audiogram Thresholds

Auditory and vestibular dysfunction associated with blast-related traumatic brain injury

Spiral computed tomography evaluation of rabbit VX2 hepatic tumors treated with 20 kHz ultrasound and microbubbles

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