scholarly journals Step-by-step algorithm for diagnosis, examination and assessment of professional suitability in noise-induced hearing loss

2020 ◽  
Vol 5 (1) ◽  
pp. 58-61
Author(s):  
Vera B. Pankova ◽  
Irina N. Fedina ◽  
Pavel V. Serebpyakov ◽  
Leonid L. Volokhov ◽  
Natalya G. Bomshteyn

Objectives - to present a step-by-step algorithm for diagnosis, examination and assessment of professional suitability in noise-induced hearing loss. Material and methods. A group of experts analysed the evidence base, consisting of more than 200 cases of primary diagnosed occupational sensorineural hearing loss (OHL), registered by various institutes for occupational safety and health. Also, the methodological instructions on the main issues of occupational hearing loss examination were regarded. Results. The methodological and regulatory documents were developed and put in practice, allowing the hygienic and clinical specialists to follow the step-by-step diagnostic and examination algorithms for OHL. Conclusion. All specialists, involved in the diagnosis, in the expertise of the occupational impact, the assessment of professional suitability, the OHL prophylaxis, should use the unified step-by-step algorithms, presented in the regulatory and methodological documents of federal and professional significance.

2002 ◽  
Vol 13 (03) ◽  
pp. 160-168 ◽  
Author(s):  
Michael Stewart ◽  
Rebecca Pankiw ◽  
Mark E. Lehman ◽  
Thomas H. Simpson

This investigation sought to establish the prevalence of hearing loss and hearing handicap in a population of 232 recreational firearm users. Hearing handicap was calculated based on four methods using pure-tone threshold data from the American Academy of Ophthalmology and Otolaryngology, American Academy of Otolaryngology-Head and Neck Surgery, National Institute of Occupational Safety and Health, and American Speech-Language and Hearing Association in addition to the self-report Hearing Handicap Inventory for Adults-Screener (HHIA-S). Subjects (45 female and 187 male) ranging in age from 13 to 77 years (mean = 40 years, SD = 15.1) completed a short questionnaire regarding demographics and shooting practices followed by pure-tone air audiometry at Occupational Safety and Health Administration test frequencies of 500 to 6000 Hz. A total of 177 who exhibited varying degrees of hearing loss also received a face-to-face administration of the HHIA-S. Audiometric and HHIA-S results revealed that both high-frequency hearing loss and hearing handicap varied significantly as functions of age and occupation. Significant gender effects were observed audiometrically but not as a function of hearing handicap. HHIA-S scores varied significantly as a function of high-frequency (1000–4000 Hz) hearing loss. Correlation coefficients between the four different pure-tone methods of calculating hearing handicap and the self-reported HHIA-S were highest for pure-tone methods that do not employ 500 Hz in the calculation.


2008 ◽  
Vol 39 (10) ◽  
pp. 25-36 ◽  
Author(s):  
Santosh Kumar Nanda ◽  
D.P. Tripathy ◽  
Sarat Kumar Patra

This paper describes a fuzzy system approach to modeling of noise-induced hearing loss, one of the most dangerous effects of noise in the mining industry. Hearing loss has been considered as a function of noise level, frequency, and exposure time. The model is simulated using MATLAB for Takagi-Sugeno-Kang (TSK) inference mechanism. The model results are compared with the survey findings of U.S. Environmental Protection Agency (USEPA) and National Institute for Occupational Safety and Health (NIOSH), Pittsburgh and were found to be in good agreement. The model clearly brings out the salient features of the surveys concerning the variation of hearing loss with frequency for various duration of exposure times, viz., the hearing loss is not appreciable below 2kHz. The model results closely match with the NIOSH results in 2–6 kHz at 90 dB (A) and with the EPA results in 2–8 kHz at 85 dBA. It was observed that for 0–6 years of exposure, the hearing loss as per NIOSH was between 0 – 20 dB, whereas it was between 0–25 dB (not significant) as per American Academy of Ophthalmology and Otolaryngology (AAOO). The model clearly shows that the duration of exposure can be used to infer the hearing loss for mining and industrial workers of different age groups.


1985 ◽  
Vol 93 (5) ◽  
pp. 622-625 ◽  
Author(s):  
Phillip C. Lee ◽  
Craig W. Senders ◽  
Bruce J. Gantz ◽  
Steven R. Otto

Noise-induced sensorineural hearing loss has been associated with Industry for many years. One conservative estimate suggests that 10 million Americans may have industry-related, noise-induced hearing loss. Acoustic trauma from any source, whether associated with work or recreations, is detrimental to hearing. The Occupational Safety and Health Administration has set industrial standards for noise levels, with current standards limiting noise exposure to 95 dBA for 2 hours daily. To date, however, there are no recreational standards. Many portable headphone cassette radios produce peak outputs of more than 100 dBA. Temporary threshold shifts could result from listening levels near the maximum output. Permanent sensorineural loss may result with repeated exposure. A pilot study was conducted in which 16 volunteers listened to headphone sets for 3 hours at their usual maximum level. Six volunteers showed transient shifts of 10 dB, and one volunteer showed a transient shift of approximately 30 dB. These shifts returned to normal within 24 hours. As expected, transient shifts frequently occur with recreational use. Therefore, recreational warnings and standards should be established.


2009 ◽  
Vol 24 (2) ◽  
pp. 63-70
Author(s):  
Jennifer Stewart Walter

The purpose of this study was 1) to examine the sound exposure of wind band members in a university setting during a week of typical rehearsals and 2) to assess whether that exposure changes depending on subjects' location within the rehearsal space. Because excessive sound exposure has a cumulative effect on the ear that can eventually lead to noise-induced hearing loss, it is important to determine whether university musicians are at risk. A 100% dose of sound is the maximum daily exposure recommended by the National Institute of Occupational Safety and Health (NIOSH) for preventing noise-induced hearing loss. Twenty-four of 46 subjects (52%) experienced one or more rehearsals with sound levels high enough to produce >100% doses, and 17 subjects experienced a mean daily dose of sound in excess of 100% as compared to the NIOSH standards. Implications and suggestions for further research are discussed.


2021 ◽  
Vol 5 (1) ◽  
pp. 45-53
Author(s):  
Elena Tverytnykova ◽  
Yulia Demidova ◽  
Tatyana Drozdova

  Abstract. The international and European experience in creating and improving integrated systems in the field of occupational safety and health on the basis of research regulatory documents of the International Organization for Standardization, European standards, national standards of Ukraine, industry and methodical documents on management of occupational safety and health of oil and gas complex enterprises is overviewed. The implementation features of OHSAS 18001 and ISO 45001 international standards to create an integrated safety management system of professional activity have been studied. The ways of implementing the analyzed requirements in the industry safety standards of occupational activity of oil and gas complex enterprises of Ukraine are considered. A number of hazardous events related to occupational activity at the enterprises: industrial safety, technogenic safety, labour hygiene and safety, ecological safety, psychophysiological safety has been considered and a generalizing scheme of dangers and hazardous events has been created. A model of an integrated management system for occupational safety activities for oil and gas enterprises is proposed based on the involvement of scientific literature, regulatory documents using the structural-logical method, systematization and generalization, and methods of meaningful and comparative analysis. It is proved that the management system, based on the principles of the cyclical model of quality management by E. Deming should include such aspects as: quality and risk management, environmental management, occupational safety management, social responsibility and power management.


2007 ◽  
Vol 122 (8) ◽  
pp. 786-794 ◽  
Author(s):  
F E Ologe ◽  
T G Olajide ◽  
C C Nwawolo ◽  
B A Oyejola

AbstractBackground:Repeated exposure to excessive noise will eventually lead to an irreversible increase in hearing thresholds. In theory, the damage reflects both the intensity of the noise and the duration of exposure. This is not linear with respect to duration of exposure; rather, the worker may experience a disproportionate loss in the early years of exposure.Methods:A prospective study surveying workers of the production section (i.e. most noise-exposed area) of a bottling factory was carried out in December 2003 and in December 2005. A self-administered questionnaire was used to extract information about worker's demographic characteristics, drug intake, and medical and occupational history, as well as information on the use of hearing protection devices. Noise mapping of the various departments of the factory was carried out. Otological examination, tympanometry and audiometry were also carried out on selected subjects.Results:Eighty-four workers, 76 (90.5 per cent) men and eight (9.5 per cent) women, were studied. Their mean age was 33.0 ± 7.6 years in 2003 and 35.0 ± 7.6 years in 2005. The recorded noise levels in the factory production section ranged between 91.5 and 98.7 dBA. The prevalence of sensorineural hearing loss among workers was noted to be 64.9 and 86.9 per cent for test one (2003) and test two (2005), respectively. The degree of hearing deterioration within the two years of this study was 1.0–3.2 dB for the right ear and 1.6–3.4 dB for the left ear. This deterioration was at discrete frequencies. More than half (53.6 per cent) of the workers did not have a hearing protection device. Of the 46.4 per cent who did, only 38.5 per cent claimed to have used it regularly.Interpretation:These findings showed that there was a high prevalence of mild sensorineural hearing loss and significant hearing deterioration among workers, due to exposure to excessive noise over a two-year period. The study demonstrates the practical importance of serial audiometry for noise-exposed workers as a means of monitoring hearing deterioration. It is necessary to enforce existing occupational health laws in our industries in order to prevent noise-induced hearing loss, since it is eminently preventable.


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