Effects of Noise on Hearing

Clark, William W.; Bohne, Barbara A.

doi:10.1001/jama.281.17.1658

Cited by 112 publications

(79 citation statements)

References 2 publications

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“…Post-match auditory tests indicated a significant average elevation in hearing thresholds at 2 000 Hz, and DPOAE amplitudes were significantly reduced at 1 266, 3 163 and 5 064 Hz. Although auditory changes probably reflect a temporary shift in hearing threshold and DPOAE amplitude, 5,7 they demonstrate that auditory physiology is affected by the sound exposure levels experienced at a football match where vuvuzelas are a major source of acoustic energy.…”

Section: Discussionmentioning

confidence: 99%

“…South African standards for occupational noise stipulate personal hearing protection for workers exposed to levels of 85 dBA and above. 9 Considering the logarithmic nature of the decibel scale, implying a doubling of hearing loss risk with every 3 dB increase, 5 participants in this sample were exposed to high-intensity sound far exceeding the current legislated average exposure and peak exposure levels for occupational noise.…”

Section: Discussionmentioning

confidence: 99%

“…[3][4][5] Recreational activities with excessively loud sound levels are an increasingly important public health care concern for developing permanent sensorineural hearing loss. [5][6][7][8] We aimed to determine (i) noise exposure levels of spectators at a FIFA 2010 designated training stadium during a premier soccer league match; and (ii) changes in auditory functioning soon after the match.…”

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confidence: 99%

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Football match spectator sound exposure and effect on hearing: A pretest-post-test study

Swanepoel¹,

Hall

2010

S Afr Med J

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

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Football match spectator sound exposure and effect on hearing: A pretest-post-test study

Swanepoel¹,

Hall

2010

S Afr Med J

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“…With prolonged noise exposure, the loss of hearing spreads to the lower pitches necessary for understanding speech. In this third stage, the patient usually becomes aware of the problem and may seek medical attention (3).…”

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confidence: 99%

Noise levels in dental schools

Sampaio-Fernandes

Carvalho

Torreira

et al. 2006

Eur J Dental Education

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Objective: To measure and analyse noise levels in the learning-teaching activities at the Dental School of the University of Porto (Portugal). Materials and methods: Sound levels were measured in five different practice areas and laboratories, selected as representative of a variety of learning-teaching activities. The noise levels were determined using a precision sound level meter that was positioned at ear level and at 1 m distance from the operator. Results: The noise levels registered vary between 60 and 99 dB(A) and are similar to the data of other international studies.The results recorded differences in sound levels when the equipment was merely turned on and during cutting operations. Differences between brand new and used equipment were also noted. It appears that hearing damage risk may be lesser amongst dentists who use brand new equipment. Conclusion: The noise levels detected in this study are considered to be close to the limit of risk of hearing loss.

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“…Ipsilateral sensorineural hearing loss after MVD could be attributed to 1) stretching of cranial nerve VIII during retraction of the cerebellum, 2) manipulation of the labyrinthine artery and/or the anterior inferior cerebellar artery, 3) direct trauma to the nerve by instruments or nearby coagulation, and 4) new compression of the nerve by the prosthesis interposed between the offending vessel and the affected nerve complex at the end of surgery. 23 Although drill-induced noise could aggravate or contribute to sensorineural hearing loss by a mechanism of acoustic trauma and reduced bone-conduction thresholds, 4,12,13,22 it could also contribute to ipsilateral and contralateral HFHL. Our clinical practice includes some patients who complain of hearing disturbance and some who do not, which makes HFHL an incidental finding.…”

Section: Discussionmentioning

confidence: 99%

The incidence of high-frequency hearing loss after microvascular decompression for trigeminal neuralgia, glossopharyngeal neuralgia, or geniculate neuralgia

Meigh

Dasyam²,

Shankar³

et al. 2015

JNS

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S enSorineural hearing loss after microvascular decompression (MVD) has a reported incidence of 1%-23.8% when performed for trigeminal neuralgia (TGN), 1.5%-4.2% for glossopharyngeal neuralgia (GPN), and 22% for geniculate neuralgia (GN). 21,24,25,27 Because of the proximity of the cranial nerve VIII to cranial nerves decompressed during the procedure, the auditory nerve in many patients is often stretched or damaged, resulting in hearing impairment. Although sensorineural hearing loss after MVD is frequently documented and well understood, high-frequency hearing loss (HFHL) is currently not well recognized. HFHL has been recently reported after MVD for hemifacial spasm (HFS). . disclosure The authors report no conflict of interest concerning the materials or methods used in this study or the findings specified in this paper. obJect The primary aim of this study was to evaluate the incidence and discuss the pathogenesis of high-frequency hearing loss (HFHL) after microvascular decompression (MVD) for trigeminal neuralgia (TGN), glossopharyngeal neuralgia (GPN), or geniculate neuralgia (GN). methods The authors analyzed preoperative and postoperative audiogram data and brainstem auditory evoked potentials (BAEPs) from 93 patients with TGN, 6 patients with GPN, and 8 patients with GN who underwent MVD. Differences in pure tone audiometry > 10 dB at frequencies of 0.25, 0.5, 1, 2, 4, and 8 kHz were calculated preoperatively and postoperatively for both the ipsilateral and the contralateral sides. Intraoperative monitoring records were analyzed and compared with the incidence of HFHL, which was defined as a change in pure tone audiometry > 10 dB at frequencies of 4 and 8 kHz. results The incidence of HFHL was 30.84% on the side ipsilateral to the surgery and 20.56% on the contralateral side. Of the 47 patients with HFHL, 20 had conductive hearing loss, and 2 experienced nonserviceable hearing loss after the surgery. The incidences of HFHL on the ipsilateral side at 4 and 8 kHz were 17.76% and 25.23%, respectively, and 8.41% and 15.89%, respectively, on the contralateral side. As the audiometric frequency increased, the number of patients with hearing loss increased. No significant postoperative difference was found between patients with and without HFHL in intraoperative BAEP waveforms. Sex, age, and affected side were not associated with an increase in the incidence of hearing loss. coNclusioNs High-frequency hearing loss occurred after MVD for TGN, GPN, or GN, and the greatest incidence occurred on the ipsilateral side. This hearing loss may be a result of drill-induced noise and/or transient loss of cerebrospinal fluid during the course of the procedure. Changes in intraoperative BAEP waveforms were not useful in predicting HFHL after MVD. Repeated postoperative audiological examinations may be useful in assessing the prognosis of HFHL.

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Effects of Noise on Hearing

Cited by 112 publications

References 2 publications

Football match spectator sound exposure and effect on hearing: A pretest-post-test study

Football match spectator sound exposure and effect on hearing: A pretest-post-test study

Noise levels in dental schools

The incidence of high-frequency hearing loss after microvascular decompression for trigeminal neuralgia, glossopharyngeal neuralgia, or geniculate neuralgia

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