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Occupational Noise-Induced Hearing Loss
Occupational hearing loss is preventable through a hierarchy of controls, which prioritize the use of engineering controls over administrative controls and personal protective equipment. The occupational and environmental medicine (OEM) physician plays a critical role in the prevention of occupational noise-induced hearing loss (NIHL). This position statement clarifies current best practices in the diagnosis of occupational NIHL. Source: Mirza, R., Kirchner, D. B., Dobie, R. A., Crawford, J. et ACOEM Task Force on Occupational Hearing Loss. (2018). Journal of Occupational and Environmental Medicine...
Exposure to loud noise and risk of vestibular schwannoma
Results from the INTERPHONE international case-control study Objective: Studies of loud noise exposure and vestibular schwannomas (VS) have shown conflicting results. The population-based INTERPHONE case?control study was conducted in 13 countries during 2000–2004. In this paper, we report the results of analyses on the association between VS and self-reported loud noise exposure. Methods: Self-reported noise exposure was analyzed in 1024 VS cases and 1984 matched controls. Life-long noise exposure was estimated through detailed questions. Odds ratios (OR) and 95% confidence intervals (CI...
Occupational biomechanical risk factors for surgically treated ulnar nerve entrapment in a prospective study of male construction workers
Evidence was provided for forceful hand-grip work, with and without vibration, as a risk factor for ulnar nerve entrapment (UNE) surgery in a large cohort of Swedish construction workers. Several individual biomechanical factors comprising such work were associated with increased risk of UNE, including: increased grip force, upper extremity load, frequency of hand-held tool use, and hand arm vibration. Source: Jackson, J. A., Olsson, D., Punnett, L., Burdorf, A., Järvholm, B. et Wahlström, J. (2018). Scandinavian journal of work, environment & health . http://dx.doi.org/10.5271/sjweh...
Cardiovascular conditions, hearing difficulty, and occupational noise exposure within US industries and occupations
Background: The purpose of this study was to estimate the prevalence of occupational noise exposure, hearing difficulty and cardiovascular conditions within US industries and occupations, and to examine any associations of these outcomes with occupational noise exposure. Methods: National Health Interview Survey data from 2014 were examined. Weighted prevalence and adjusted prevalence ratios of self-reported hearing difficulty, hypertension, elevated cholesterol, and coronary heart disease or stroke were estimated by level of occupational noise exposure, industry, and occupation. Results: Twenty...
Physiopathologie du syndrome de Raynaud d'origine vibratoire
Près d'un salarié sur cinq déclare être exposé aux vibrations au moins un quart de son temps de travail dans l'Union européenne. Le syndrome des vibrations main-bras susceptible d'en résulter est une pathologie complexe, dont la physiopathologie n'est pas encore totalement connue, associant des signes neurologiques, vasculaires et/ou ostéo-articulaires. Des travaux de recherche visent à mieux connaître la relation entre l'exposition aux vibrations mainbras et leurs effets sur les troubles angioneurotiques du...
Burden of disease from road traffic and railway noise
A quantification of healthy life years lost in Sweden This paper provides the first estimation of the health burden in terms of disability-adjusted life-years (DALY) of noise from the transport sector in Sweden. Assessments of health impacts of noise on a national level are still rare, but provide valuable tools for policymakers in order to prevent and abate environmental noise exposure. Source: Eriksson, C., Bodin, T., & Selander, J. (2017). Scandinavian Journal of Work, Environment & Health . http://dx.doi.org/10.5271/sjweh.3653
Noise Exposure Among Federal Wildland Fire Fighters
Hearing loss is one of the most common work-related illnesses in the United States. NIOSH estimates that 22 million U.S. workers encounter noise exposures loud enough to be hazardous. Wildland fire fighting (vs. urban/ structural fire fighting), aims to suppress grass, brush, or forest fires. Wildland fire fighting is considered a high-risk emergency response occupation requiring considerable physical and psychological demands. Wildland fire fighters often work 12 to more than 16 hours per shift for up to 14 consecutive days over a 3- to 9-month period. Source: https://blogs.cdc.gov/niosh...
Caractérisation du syndrome du marteau hypothénarien chez les travailleurs utilisant des outils manuels et exposés aux vibrations main-bras
Les travailleurs utilisant des outils portatifs vibrants et/ou des outils manuels (sans vibrations) sont à risque de développer le syndrome du marteau hypothénarien (SMH) et s'exposent ainsi à de lourdes conséquences pour la santé, dont l'amputation des doigts. En effet, l'artère cubitale de la paume de la main est située en superficie et n'est pas suffisamment protégée par des tissus (par exemple, des muscles). Elle est ainsi particulièrement vulnérable aux coups et vibrations ainsi qu'aux traumatismes...
Situation au travail des personnes touchées par des acouphènes et/ou de l'hyperacousie
Cet article propose d'étudier les conditions de travail et l'impact du travail sur la santé d'une population mal connue, celle des personnes très gênées par des troubles de l'audition tels que des acouphènes ou de l'hyperacousie. Les données, issues du Baromètre Santé Sourds et Malentendants (BSSM) de l'Institut national de prévention et d'éducation pour la santé (INPES, devenu en 2016 Santé Publique France), fournissent des résultats sur la perception des conditions de travail...
Association Between Farm Machinery Operation and Low Back Disorder in Farmers
A Retrospective Cohort Study Objective: The association between whole body vibration (WBV) as measured by annual accumulated use of all-terrain vehicles (ATV)/combine/tractor operation and low back disorders (LBDs) among farmers was investigated. Methods: Saskatchewan Farm Injury Cohort Study data was used. Baseline data were collected in 2007 on the three vehicle types and other factors. Follow-up data on LBD symptoms were collected during 2013 resulting in 1149 samples. Results: Adjusted for age, education, and gender, LBDs were associated with tractor operation for 1 to 150 hours/year (Relative...
Effect of noise on comfort in open-plan offices
Application of an assessment questionnaire Open-plan offices account for 60% of French office workspaces. The noise levels recorded in this type of environment are much lower than those encountered in industrial workplaces. Nevertheless, surveys show that noise is considered by employees as the main source of discomfort. A first questionnaire dedicated to noise discomfort was produced in 2013 and tested on a panel made up of 217 people working in 7 French companies. Today, it also makes it possible to address the issues of fatigue related to ambient sound, but above all, the survey aims to study...
Transcriptional Pathways Altered in Response to Vibration in a Model of Hand-Arm Vibration Syndrome
Objective: The aim of this study was to use an established model of vibration-induced injury to assess frequency-dependent changes in transcript expression in skin, artery, and nerve tissues. Methods: Transcript expression in tissues from control and vibration-exposed rats (4h/day for 10 days at 62.5, 125, or 250?Hz; 49m/s2, rms) was measured. Transcripts affected by vibration were used in bioinformatics analyses to identify molecular- and disease-related pathways associated with exposure to vibration. Results: Analyses revealed that cancer-related pathways showed frequency-dependent changes in...
The effects of noise on key workplace skills
This study explored the effect on memory and psychomotor performance of wideband noise (simulated in-cabin aircraft noise) at 75 dBA, which is similar to that experienced during the cruise phase of a commercial flight. The results from the tests were compared to the effects of a widely known and common metric on the same skills, namely, blood alcohol concentration (BAC). All 32 participants, half non-native English speakers, completed three different tests (recognition memory, working memory, and reaction time) presented in counterbalanced order, either in the presence of noise, with or without...
A critical review of evidence related to hand-arm vibration syndrome and the extent of exposure to vibration
This report describes a systematic literature review on the nature of the exposure-response relationship between hand-transmitted vibration and the elements of hand-arm vibration syndrome (HAVS), ie the vascular, neurosensory and musculoskeletal components. Annex C of ISO 5349-1:2001 contains an exposure-response relationship for vascular HAVS, yet this review of the literature has not found any strong evidence of a precise quantitative relationship between exposure to vibration and health outcomes, either for vascular or neurosensory HAVS. There is some evidence that suggests possible limited...
Surdité professionnelle : cas acceptés par la Commission de la santé et de la sécurité du travail au Québec
Mise à jour 1997-2012 Ce feuillet est la mise à jour d'une étude publiée en 2014. Il montre que le nombre de cas de surdité professionnelle causée par le bruit continue d'augmenter bien que cette maladie puisse être évitée, car les moyens de la prévenir sont connus. Source: https://www.inspq.qc.ca/publications/2018
Relationships of neurosensory disorders and reduced work ability to alternative frequency weightings of hand-transmitted vibration
Objective: This cohort study aims to compare the performance of alternative frequency weightings of hand-transmitted vibration (HTV) for the assessment of the exposure–response relationships for neurosensory disorders and reduced work ability among HTV-exposed workers. Methods: In a 3-year follow up study, the occurrence of neurosensory symptoms and reduced work ability, and the response to quantitative sensory testing (grip force, manipulative dexterity, touch sensation) were investigated in 249 HTV-exposed workers and 138 healthy controls. Among the HTV-exposed workers, the sensory outcomes...
Dose - response relationship between noise exposure and the risk of occupational injury
Many workers worldwide experience fatality and disability caused by occupational injuries. This study examined the relationship between noise exposure and occupational injuries at factories in Korea. A total of 1790 factories located in northern Gyeonggi Province, Korea was evaluated. The time-weighted average levels of dust and noise exposure were taken from Workplace Exposure Assessment data. Apart occupational injuries, sports events, traffic accidents, and other accidents occurring outside workplaces were excluded. The incidences of occupational injury in each factory were calculated by data...
Occupational noise annoyance linked to depressive symptoms and suicidal ideation
A result from nationwide survey of Korea BACKGROUND: Noise, or undesirable sound, is one of the most common environmental stressors, and it can cause various health effects. Beyond the auditory consequences of occupational noise exposure, extra-auditory effects such as psychological problems have also been found. The aim of the current study is to elucidate the association between occupational noise annoyance and psychological symptoms, including symptoms of depression and suicidal ideation. METHODS: A total of 10,020 participants (5,410 men and 4,610 women) were included in the current analysis...
Portrait de la surdité professionnelle acceptée par la Commission de la santé et de la sécurité du travail au Québec : 1997-2010
Troubles de l'audition sous surveillance Entre 1997 et 2010, une hausse importante du nombre de cas de surdité professionnelle acceptés par le régime québécois de santé et de sécurité au travail est observée. Cette augmentation remet en question l'atteinte de l'objectif du Programme national de santé publique (2003-2012) visant à réduire l'incidence de cette maladie. La surdité professionnelle reste un problème actuel puisque de nombreux travailleurs continueraient d'être...
Associations of work activities requiring pinch or hand grip or exposure to hand-arm vibration with finger and wrist osteoarthritis
A systematic review Objective : We systematically reviewed the epidemiologic evidence linking finger and wrist osteoarthritis (OA) with work activities requiring pinch or hand grip or exposure to hand-arm vibration. Methods : PubMed and Embase databases were searched up to June 2013. We selected studies providing quantitative risk estimates of radiographic diagnosed finger and/or wrist joint OA (hand OA) in relation to work activities involving pinch or hand grip or exposure to hand-arm vibration. We used specific criteria to evaluate completeness of reporting, potential confounding, and bias....
Risk factors for hearing loss across occupations
A survey in Norway has investigated the link between a worker's job and the possible risk of hearing loss. While occupation was a factor in 2%–3% of the variance in hearing loss among men aged 45, it was of significance for less than 1% of women and young men. The most serious hearing problems in men were found among woodworkers, miners, electrical power line workers and cable jointers, carpenters, seamen and mechanics. Among women, there were only a few occupational groups indicating hearing problems. Source : http://www.eurofound.europa.eu/ewco/2013/09/NO1309019I.htm
Emotional stress may affect sound perception
A fresh article by researchers including Dan Hasson at Karolinska Institute and the Stress Research Institute in Stockholm, Sweden concludes that emotional exhaustion in women affects their sound perception in a negative way. The sample of subjects were taken from SLOSH (Swedish Longitudinal Occupational Survey of Health) and followed up with additional data collection. After being provoked with an acute stress task women who had scored high on emotional exhaustion also showed a greater sensitivity to sounds. This study supports the theory that hearing problems such as hyperacusis (auditory sensitivity...
Combined Exposures: An update from the International commission on biological effects of noise
International Commission on Biological Effects of Noise (ICBEN) Team 8 deals with the effects of combined "agents" in the urban and work place settings. Results presented at the ICBEN conference indicate that some pesticides, more specifically the organophosphates, and a wider range of industrial chemicals are harmful to the auditory system at concentrations often found in occupational settings. Effects of occupational noise on hearing are exacerbated by toluene and possibly by carbon monoxide. Several of the chemicals studied found to be potentially toxic not only to hair cells in the...
Noise and cardiovascular disease: a review of the literature 2008-2011
The association between noise and cardiovascular disease has been studied for several decades and the weight of evidence clearly supports a causal link. Nevertheless, many questions remain, such as the magnitude and threshold level for adverse effects of noise, how noise and other cardio-toxic pollutants (such as particulate matter) may interact in disease causation, identification of vulnerable populations, of exposure modifiers (i.e., location of bedrooms) and of other effect-modifiers (i.e., gender), and how epidemiologic methodology can be improved. This review describes contributions to literature...
Open-plan office noise: The susceptibility and suitability of different cognitive tasks for work in the presence of irrelevant speech
The aim of the present study was to test which tasks are suitable for work in open-plan offices according to how susceptible they are to disruption produced by the mere presence of irrelevant speech. The tasks were chosen to tap fundamental capacities of office work involving: search for relevant information, remembering material, counting, and generation of words. The hypothesis was that tasks requiring semantic processing should be impaired by irrelevant speech. To determine the magnitude of performance decrease, two sound conditions (quiet, irrelevant speech) were compared. The results showed...
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