Vestibular-evoked myogenic potentials in chronic noise-induced hearing loss

2007 ◽  
Vol 137 (4) ◽  
pp. 607-611 ◽  
Author(s):  
Yen-Pin Wang ◽  
Yi-Ho Young
Keyword(s):  
Hearing Loss ◽  
Prospective Study ◽  
Noise Exposure ◽  
Hearing Threshold ◽  
Vestibular Evoked Myogenic Potentials ◽  
Noise Induced Hearing Loss ◽  
Vestibular Evoked Myogenic Potential ◽  
Myogenic Potential ◽  
Abnormal Rate ◽  
Sacculocollic Reflex

Objective To investigate the effect of chronic noise exposure on vestibular-evoked myogenic potentials. Study Design Prospective study. Subjects and Methods Twenty patients with chronic noise-induced hearing loss, presenting as bilateral notched audiogram at 4 kHz, underwent audiometry, caloric, and vestibular-evoked myogenic potential tests. Results Caloric and vestibular-evoked myogenic potential tests revealed abnormal responses in nine (45%) and 10 (50%) patients, respectively. However, when both results were considered together, the abnormal rate reached 70% (14 of 20). The hearing threshold of 4 kHz significantly associated with vestibular-evoked myogenic potential results (ie, vestibular-evoked myogenic potential was abnormal in patients with greater degrees of hearing loss), but not with caloric responses. Conclusion Patients with bilateral 4-kHz notched audiogram and hearing threshold of 4 kHz >40 dB may show abnormal (absent or delayed) vestibular-evoked myogenic potentials, indicating that the vestibular part, especially the sacculocollic reflex pathway, has also been damaged.

scholarly journals Prevalence of Hearing Loss in Military Aviators: The Audiometry and Risk Factors Analysis

2014 ◽  
Vol 9 (1) ◽  
pp. 19-24
Author(s):  
MR Alam ◽  
MA Wahab ◽  
MM Rahman ◽  
AKM Asaduzzaman ◽  
MAS Al-Azad ◽  
...  
Keyword(s):  
Risk Factors ◽  
Hearing Loss ◽  
Noise Exposure ◽  
Health Hazard ◽  
Hearing Threshold ◽  
Armed Forces ◽  
Cross Sectional Study ◽  
Noise Induced Hearing Loss ◽  
Cross Sectional ◽  
Medical Checkup

Introduction: Noise Induced Hearing Loss (NIHL) is an occupational health hazard linked with noise exposure of more than 85 dB. Aircraft noise and other occupational noise exposure cause military aviators more susceptible to NIHL than commercial jet pilots. Aim: To find out the prevalence of noise induced hearing loss among different military aircrew population with special emphasis on identifying the associated risk factors. Materials and Methods: This cross sectional study was conducted on Kuwait Air force pilots those who came for annual medical checkup from July 2010 to July 2012. Audiometry of all subjects was done by ENT specialist and necessary data were collected by structured questionnaires. All data were analyzed by SPSS (Statistical Package for the Social Sciences) version 17.0 Results: Out of 221 aircrew 32 (14.48%) developed NIHL. Hearing loss was mild to moderate and predominately at high frequencies. Most affected group was helicopter pilots. Pilots of more than 40 years of age and those who had more than 1000 flying hours had mean hearing threshold more than other groups. The right ear was affected in majority of cases than left ear. Conclusion: Noise exposure to aircrew is inevitable so hearing loss prevention strategies might play a pivotal role to save aircrew hearing. Active surveillance of hearing protection practices might have beneficiary effect. Steps can be taken for early detection of NIHL and hearing conservation program. DOI: http://dx.doi.org/10.3329/jafmc.v9i1.18721 Journal of Armed Forces Medical College Bangladesh Vol.9(1) 2013: 19-24

scholarly journals Noise Exposure and Hearing Threshold Profile among Zumba Fitness Regulars in Kuantan, Pahang, Malaysia

2020 ◽  
Vol 19 (2) ◽  
Author(s):  
Razali A ◽  
Othman MS ◽  
Rahman MS ◽  
Misaridin NFI
Keyword(s):  
Hearing Loss ◽  
Noise Exposure ◽  
Hearing Threshold ◽  
Sound Level ◽  
Hearing Level ◽  
Noise Induced Hearing Loss ◽  
Loud Noise ◽  
Abnormal Pattern ◽  
Level Meter ◽  
Hearing System

INTRODUCTION: Recreational noise exposure has become a major threat to the hearing system, and this includes exposure to loud noise during group exercises such as Zumba Fitness, where loud music plays an important role. This study aimed to assess the noise exposure and hearing threshold profile among Zumba Fitness regulars in Kuantan, Malaysia. MATERIALS AND METHODS: Noise exposure and hearing profile threshold were measured during Zumba Fitness sessions at a fitness studio in Kuantan, Malaysia from 24th June 2014 to 12th August 2014. Noise exposure was measured using a noise dosimeter for one hour of Zumba Fitness session with a total of nine sessions run by three different instructors while sound level pressure was taken using a sound level meter during ambient, peak session and during cooling down. Thirty participants answered questionnaires and underwent pure tone diagnostic audiometry test at a local clinic for hearing threshold documentation. RESULTS: Some areas of the hall posed higher risks of causing noise-induced hearing loss especially near the amplifiers. There were periods when the hearing level exceeded 115 dBA. Early abnormal pattern could be observed in the hearing profiles of some of the participants to suggest preliminary hearing problems. CONCLUSION: Zumba Fitness regulars have a risk of developing noise-induced hearing loss and preventive steps should be properly addressed as NIHL is permanent and irreversible.

Noise-Induced Hearing Loss in Professional Orchestral Musicians

2013 ◽  
Vol 38 (2) ◽  
pp. 223-234 ◽  
Author(s):  
Małgorzata Pawlaczyk-Łuszczyńska ◽  
Małgorzata Zamojska ◽  
Adam Dudarewicz ◽  
Kamil Zaborowski
Keyword(s):  
Hearing Loss ◽  
High Frequency ◽  
Noise Exposure ◽  
Hearing Threshold ◽  
Noise Induced Hearing Loss ◽  
Occupational Risk Factors ◽  
Threshold Levels ◽  
Exposed Population ◽  
Orchestral Musicians ◽  
The Impact

Abstract The overall purpose of this study was to assess hearing status in professional orchestral musicians. Standard pure-tone audiometry (PTA) and transient-evoked otoacoustic emissions (TEOAEs) were per- formed in 126 orchestral musicians. Occupational and non-occupational risk factors for noise-induced hearing loss (NIHL) were identified in questionnaire inquiry. Data on sound pressure levels produced by various groups of instruments were also collected and analyzed. Measured hearing threshold levels (HTLs) were compared with the theoretical predictions calculated according to ISO 1999 (1990). Musicians were exposed to excessive sound at weekly noise exposure levels of for 81-100 dB (mean: 86.6±4.0 dB) for 5-48 years (mean: 24.0±10.7 years). Most of them (95%) had hearing corresponds to grade 0 of hearing impairment (mean hearing threshold level at 500, 1000, 2000 and 4000 Hz lower than 25 dB). However, high frequency notched audiograms typical for noise-induced hearing loss were found in 35% of cases. Simultaneously, about 35% of audiograms showed typical for NIHL high frequency notches (mainly occurring at 6000 Hz). When analyzing the impact of age, gender and noise exposure on hearing test results both PTA and TEOAE consistently showed better hearing in females vs. males, younger vs. older musicians. But higher exposure to orchestral noise was not associated with poorer hearing tests results. The musician’s audiometric hearing threshold levels were poorer than equivalent non-noise-exposed population and better (at 3000 and 4000 Hz) than expected for noise-exposed population according to ISO 1999 (1990). Thus, music impairs hearing of orchestral musicians, but less than expected from noise exposure.

scholarly journals Prevalance of Noise Induced Hearing Loss among Traffic Police Personnel of Kathmandu Metropolitan City

2012 ◽  
Vol 9 (4) ◽  
pp. 274-278 ◽  
Author(s):  
I Shrestha ◽  
B L Shrestha ◽  
M Pokharel ◽  
R C M Amatya ◽  
D R Karki
Keyword(s):  
Hearing Loss ◽  
Noise Exposure ◽  
Positive Impact ◽  
Hearing Threshold ◽  
Pure Tone Audiometry ◽  
University Hospital ◽  
P Value ◽  
Noise Induced Hearing Loss ◽  
Traffic Police ◽  
Police Personnel

Background Noise induced hearing loss (NIHL) is a major preventable occupational health hazard. Objective To measure permanent threshold shift in traffic police personnel due to noise exposure and to examine whether it was associated with duration of noise exposure, years of work and risk factors. Methods Cross sectional, descriptive study conducted at Dhulikhel hospital, Kathmandu University Hospital in 110 responding traffic police personnel. Detailed history and clinical examination of ear, impedence audiometry and pure tone audiometry was performed. Results Mean age group was 29.82 years; 82(74.5%) were males and 28 (25.5%) were females. Mean duration of service is 11.86 years. Twenty six (23.6%) had tinnitus and 39(35.5%) had blocked sensation in ear. Sixty five (59.1%) worked between 10-19 years. Alcohol and smoking shows positive impact on NIHL (p value =0.00). Odds ratio with 95% confidence interval were 4.481 (1.925-10.432) and 6.578 (2.306-18.764) respectively. Among 73(66.4%) noise induced hearing loss positive cases, bilateral involvement was seen in 45 (40.9%) and unilateral in 28(25.4 %) cases. Among unilateral cases most were left sided. Hearing threshold at 4 kHz increased according to age and duration of service. Conclusion Traffic police personnel are in constant risk of noise induced hearing loss. Screening for hearing loss is recommended for people exposed to noise.DOI: http://dx.doi.org/10.3126/kumj.v9i4.6343 Kathmandu Univ Med J 2011;9(4):274-8

scholarly journals Effect of Workplace Noise on Hearing Ability in Tile and Ceramic Industry Workers in Iran: A 2-Year Follow-Up Study

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Mehrdad Mostaghaci ◽  
Seyyed Jalil Mirmohammadi ◽  
Amir Houshang Mehrparvar ◽  
Maryam Bahaloo ◽  
Abolfazl Mollasadeghi ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Noise Exposure ◽  
Hearing Threshold ◽  
Threshold Shift ◽  
Noise Induced Hearing Loss ◽  
Follow Up Study ◽  
Hearing Ability ◽  
The Right ◽  
Ceramic Workers

Introduction. Noise as a common physical hazard may lead to noise-induced hearing loss, an irreversible but preventable disorder. Annual audiometric evaluations help detect changes in hearing status before clinically significant hearing loss develops. This study was designed to track hearing threshold changes during 2-year follow-up among tile and ceramic workers.Methods. This follow-up study was conducted on 555 workers (totally 1110 ears). Subjects were divided into four groups according to the level of noise exposure. Hearing threshold in conventional audiometric frequencies was measured and standard threshold shift was calculated for each ear.Results. Hearing threshold was increased during 2 years of follow-up. Increased hearing threshold was most frequently observed at 4000, 6000, and 3000 Hz. Standard threshold shift was observed in 13 (2.34%), 49 (8.83%), 22 (3.96%), and 63 (11.35%) subjects in the first and second years of follow-up in the right and left ears, respectively.Conclusions. This study has documented a high incidence of noise-induced hearing loss in tile and ceramic workers that would put stress on the importance of using hearing protection devices.

scholarly journals Vestibular evoked myogenic potential in noise-induced hearing loss

2010 ◽  
Vol 12 (48) ◽  
pp. 191 ◽  
Author(s):  
Kaushlendra Kumar ◽  
ChristinaJean Vivarthini ◽  
JayashreeS Bhat
Keyword(s):  
Hearing Loss ◽  
Noise Induced Hearing Loss ◽  
Vestibular Evoked Myogenic Potential ◽  
Myogenic Potential

Vestibular dysfunction in patients with post-mumps sensorineural hearing loss

2015 ◽  
Vol 129 (4) ◽  
pp. 337-341 ◽  
Author(s):  
M M El-Badry ◽  
A Abousetta ◽  
R M A Kader
Keyword(s):  
Hearing Loss ◽  
Sensorineural Hearing Loss ◽  
Sensorineural Hearing ◽  
The Other ◽  
Vestibular Evoked Myogenic Potentials ◽  
Vestibular Evoked Myogenic Potential ◽  
Myogenic Potential ◽  
Vestibular Pathology ◽  
Peripheral Site ◽  
Mumps Infection

AbstractObjective:To study the possible damage to the vestibular system in patients with post-mumps sensorineural hearing loss.Methods:Nineteen patients with recent mumps infection participated in the study. All patients had unilateral profound sensorineural hearing loss or total hearing loss. Patients were subjected to video-nystagmography and vestibular-evoked myogenic potential testing.Results:Eight patients (42.1 per cent) had normal video-nystagmography results and intact vestibular-evoked myogenic potentials on both sides, whereas the other 11 patients (57.9 per cent) had vestibular lesions in the form of marked canal weakness and absent vestibular-evoked myogenic potential responses on the same side as hearing loss. The overall findings indicated a peripheral site for the lesions.Conclusion:The majority of patients with post-mumps sensorineural hearing loss had peripheral vestibular pathology in the same ear as hearing loss. Further research should be directed to saving the inner ear following mumps infection.

Safe Use of Acoustic Vestibular-Evoked Myogenic Potential Stimuli: Protocol and Patient-Specific Considerations

2017 ◽  
Vol 28 (08) ◽  
pp. 708-717 ◽  
Author(s):  
Cory D. F. Portnuff ◽  
Samantha Kleindienst ◽  
Jamie M. Bogle
Keyword(s):  
Hearing Loss ◽  
Noise Exposure ◽  
Vestibular Evoked Myogenic Potentials ◽  
Patient Specific ◽  
Stimulus Exposure ◽  
Clinical Tool ◽  
Exposure Limits ◽  
Vestibular Evoked Myogenic Potential ◽  
Specific Patient ◽  
Stimulus Parameters

AbstractVestibular-evoked myogenic potentials (VEMPs) are commonly used clinical assessments for patients with complaints of dizziness. However, relatively high air-conducted stimuli are required to elicit the VEMP, and ultimately may compromise safe noise exposure limits. Recently, research has reported the potential for noise-induced hearing loss (NIHL) from VEMP stimulus exposure through studies of reduced otoacoustic emission levels after VEMP testing, as well as a recent case study showing permanent sensorineural hearing loss associated with VEMP exposure.The purpose of this report is to review the potential for hazardous noise exposure from VEMP stimuli and to suggest clinical parameters for safe VEMP testing.Literature review with presentation of clinical guidelines and a clinical tool for estimating noise exposure.The literature surrounding VEMP stimulus-induced hearing loss is reviewed, including several cases of overexposure. The article then presents a clinical calculation tool for the estimation of a patient’s safe noise exposure from VEMP stimuli, considering stimulus parameters, and includes a discussion of how varying stimulus parameters affect a patient’s noise exposure. Finally, recommendations are provided for recognizing and managing specific patient populations who may be at higher risk for NIHL from VEMP stimulus exposure. A sample protocol is provided that allows for safe noise exposure.VEMP stimuli have the potential to cause NIHL due to high sound exposure levels. However, with proper safety protocols in place, clinicians may reduce or eliminate this risk to their patients. Use of the tools provided, including the noise exposure calculation tool and sample protocols, may help clinicians to understand and ensure safe use of VEMP stimuli.

Evaluation of Sustained-Release Steroid Hydrogels in a Guinea Pig Model for Noise-Induced Hearing Loss

2018 ◽  
Vol 23 (2) ◽  
pp. 73-81 ◽  
Author(s):  
Chengjing Zhu ◽  
Julia Clara Gausterer ◽  
Hanna Schöpper ◽  
Michael Nieratschker ◽  
Nodir Saidov ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Triamcinolone Acetonide ◽  
Noise Exposure ◽  
Spiral Ganglion ◽  
Hearing Threshold ◽  
Poloxamer 407 ◽  
Noise Induced Hearing Loss ◽  
Spiral Ganglion Cell ◽  
Cell Counts ◽  
Guinea Pig Model

The otoprotective effects of thermoreversible poloxamer 407 hydrogels containing dexamethasone or triamcinolone acetonide were evaluated in an animal model of noise-induced hearing loss. Seven days after noise exposure, hearing threshold shifts at 16 kHz were significantly reduced in the 6% dexamethasone group (p < 0.05). Even though no significant differences in hair cell counts were found, histological analysis revealed a significantly higher spiral ganglion cell density in the first turn of the cochlea in this group (p < 0.05). No otoprotective effects were observed after the application of the triamcinolone acetonide hydrogels. As the findings of this study indicate potential otoprotective effects of sustained topical dexamethasone delivery in the setting of noise-induced hearing loss, this strategy merits further evaluation.

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