Perspectives on Noise-Induced Hearing Loss

Prell, Colleen G. Le; Henderson, Donald

doi:10.1007/978-1-4419-9523-0_1

Cited by 33 publications

(37 citation statements)

References 44 publications

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“…21,22 Olivocochlear efferent feedback, which decreases vulnerability to acute acoustic injury, may also play a role in the sensitization effect observed here, given that it manifested within minutes. [23][24][25] The exposure in this study-by design-was a single exposure of short duration, restricted to the platform, and reflective of the noise spectrum in only one particular subway station. While it is reassuring that subjects did not experience temporary threshold elevation after a single noise exposure, it is difficult to generalize these findings to all commuters as their noise levels may be significantly higher.…”

Section: Discussionmentioning

confidence: 99%

The effect of brief subway station noise exposure on commuter hearing

Shah

Suen

Cellum

et al. 2018

Laryngoscope Investig Oto

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ObjectiveTo demonstrate that brief exposure to subway noise causes temporary threshold shift and is preventable with noise protection.MethodsThe study was conducted as a randomized crossover trial. Twenty subjects were randomly assigned to two groups, one with hearing protection and one without. Subjects were exposed to subway platform noise for 15 minutes. Pre‐ and post‐exposure pure tone audiometry (PTA) and otoacoustic emissions were compared. After a washout period, subjects switched hearing protection groups and repeated the process.ResultsA statistically significant reduction in PTA thresholds after subway noise exposure was identified, for subjects with and without hearing protection (P < .001). For exposure without hearing protection, the mean threshold was 5.19 dB pre‐exposure and 3.91 dB post‐exposure (decrease of 1.28 dB; 95% confidence interval, 0.82–1.74). For exposure with hearing protection, the mean threshold was 4.81 dB pre‐exposure and 3.47 dB post‐exposure (decrease of 1.34 dB; 95% confidence interval, 0.89–1.79).ConclusionBrief exposure to subway noise did not cause hearing loss with or without noise protection. Though clinically insignificant, the unexpected finding of reduction in PTA suggests that there are complex heterogeneous short‐ and long‐term cochlear responses to noise exposure that should be further explored.Level of Evidence1b

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Section: Discussionmentioning

confidence: 99%

The effect of brief subway station noise exposure on commuter hearing

Shah

Suen

Cellum

et al. 2018

Laryngoscope Investig Oto

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“…In this manner, age, sex, work experience, and exposure to vibration have been evaluated (35,40,41). Moreover, non-occupational sources of sound, mainly personal music players and gunshots, are other important confounding variables (42). It should be noted that workers in low-exposure sites were considered as the control group in the present study.…”

Section: Discussionmentioning

confidence: 99%

Occupational Noise Exposure and Hearing Impairment among Spinning Workers in Iran

Saberi

Ghasemi

2017

Iran Red Crescent Med J

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Background: Hearing impairment (HI), resulting from noise exposure, can be incapacitating and irreversible. Objectives: The present study aimed to determine the relationship between noise exposure and HI among workers and employees in a spinning industry. Methods: This cross sectional study was conducted on 489 workers in a spinning industry in Iran during 2015. The census method was applied for the purpose of sampling. The hearing threshold of each ear was determined during work shifts, using Madsen audiometric device. HI was calculated, based on the guidelines by the American Medical Association (AMA). The effects of different variables on HI were assessed via regression analysis.

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“…However, many studies in animal models of NIHL have reported robust attenuation of NIHL by agents that diminish or protect from the effects of reactive species (Henderson et al 1999(Henderson et al , 2006Le Prell et al 2003 ;Lynch and Kil 2005 ). One of the early entrants in antioxidant research for the treatment or prevention of NIHL was the compound allopurinol, a xanthine oxidase inhibitor used to treat hyperuricemia.…”

Section: Nihl and Antioxidantsmentioning

confidence: 98%