70 research outputs found

    Neuromusculoskeletal disorders in the neck and upper extremities among drivers of all-terrain vehicles – a case series

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    <p>Abstract</p> <p>Background</p> <p>The purpose of this study was to investigate whether professional drivers of all-terrain vehicles (ATVs) with neck pain have a different array of neuromusculoskeletal disorders in the neck and upper extremities than a referent group with neck pain from the general population. It is hypothesized that exposure to shock-type vibration and unfavorable working postures in ATVs have the capacity to cause peripheral nervous lesions.</p> <p>Methods</p> <p>This study was based on a case series analyzed according to a case-case comparison design. The study population consisted of 60 male subjects, including professional drivers of forest machines (n = 15), snowmobiles (n = 15), snowgroomers (n = 15) and referents from the general population (n = 15) all of whom had reported neck pain in a questionnaire and underwent an extensive physical examination of the neck and upper extremities. Based on symptom history, symptoms and signs, and in some cases chemical, electroneurographical and radiological findings, subjects were classified as having a nociceptive or neuropathic disorder or a mix of these types.</p> <p>Results</p> <p>The occurrence of asymmetrical and focal neuropathies (peripheral nervous lesion), pure or in a mix with a nociceptive disorder was common among cases in the ATV driver groups (47%–79%). This contrasted with the referents that were less often classified as having asymmetrical and focal neuropathy (27%), but instead had more nociceptive disorders. The difference was most pronounced among drivers of snowgroomers, while drivers of forest machines were more frequently classified as having a nociceptive disorder originating in the muscles.</p> <p>Conclusion</p> <p>This study found a high prevalence of assymetrical and focal neuropathies among drivers with pain in the neck, operating various ATVs. It seems as if exposure to shock-type whole-body vibration (WBV) and appurtenant unfavorable postures in ATVs may be associated to peripheral nervous lesions.</p

    Incidence of Raynaud's phenomenon in relation to hand-arm vibration exposure among male workers at an engineering plant a cohort study

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    <p>Abstract</p> <p>Background</p> <p>The objective of this study was to assess the incidence of Raynaud's phenomenon in relation to hand-arm vibration exposure in a cohort consisting of male office and manual workers.</p> <p>Methods</p> <p>The baseline population consisted of 94 office and 147 manual workers at an engineering plant. Raynaud's phenomenon (RP) was assessed at baseline and at follow up (at 5, 10 and 15 years). A retrospective and a prospective cohort analysis of data were done. Hand-arm vibration exposure dose was defined as the product of exposure duration and the weighted hand-arm vibration exposure value according to ISO 5349-1.</p> <p>Results</p> <p>The retrospective/prospective incidence of Raynaud's phenomenon was 16/14 per 1000 exposure years among exposed and 2.4/5.0 per 1000 years among the not exposed. The retrospective dose response curve based on 4 dose classes showed that class 2, 3 and 4 had similar response and showed higher incidence than the not-exposed. The dose with RP response to hand-arm vibration corresponded to a 10 year A(8) value between 0.4–1.0 m/s<sup>2</sup>.</p> <p>Conclusion</p> <p>The results indicate that the EU directive on an action value for hand-arm vibration of 2.5 m/s<sup>2 </sup>is not too low. Rather, it suggests that employers should take on actions even at exposure values of 1 m/s<sup>2</sup>A(8).</p

    Dupuytrens sjukdom i relation till exponering för handöverförda vibrationer. En systematisk kunskapsöversikt och meta-analys.

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    Source at https://hdl.handle.net/2077/71843.Kunskapsöversikten syftar till att specifikt besvara frÄgan om risk för Dupuytrens sjukdom i relation till exponering för handöverförda vibrationer. LitteraturgenomgÄngen följde PRISMAs systematiska metod omfattande databaserna Ovid MEDLINEŸ , EmbaseŸ Classic och EmbaseŸ för perioden 1947 till juli 2020 kompletterat med manuell uppdatering i databasen PubMedŸ fram till 2020-12-31 samt genomgÄng av referenslistor i översiktsartiklar och originalartiklar. Vid databassökning erhölls totalt 75 referenser till vilka adderades 13 referenser efter kompletterande manuell sökning. För detaljerad granskning kvarstod 61 artiklar. Selektionskraven innefattade att studien publicerats i granskad tidskrift, pÄ engelskt sprÄk samt avsÄg Dupuytrens sjukdom/kontraktur och innefattade uppgifter om vibrationsexponering. Den slutliga selektionen omfattade 11 artiklar varav 8 av tvÀrsnittsdesign, 2 av fallkontrolldesign och 1 av kohortdesign. Granskning och analys innefattade detaljerad genomgÄng av studieupplÀgg, population, design, exponering och utfall med hÀnsyn tagen till modifierande faktorer. Selekterade studier bedömdes utifrÄn risk för bias enligt uppstÀllda kriterier för diagnostisk tillförlitlighet, exponering och metodologisk kvalité. Meta-analys avsÄg berÀkningar av sammanfattande risk för Dupuytrens sjukdom i jÀmförelse mellan grupper exponerade för vibrationer kontra inte exponerade samt mellan grupper med hög respektive lÄg exponering av vibrationer inom samma studie. Resultaten visade att den sammanvÀgda prevalensen av Dupuytrens sjukdom bland exponerade mÀn var cirka 8 % och 4 % bland inte vibrationsexponerade mÀn. RiskbestÀmningen byggd pÄ en kvalitativ, beskrivande analys (narrativ syntes) av de studier som skattades ha lÀgre risk för bias bedömdes motsvara, en drygt fördubblad risk för Dupuytrens sjukdom vid arbete med vibrerande maskiner. En kompletterande sammanfattande statistisk syntes (meta-analys) visade pÄ en drygt fördubblad risk. För ett möjligt exponeringsrespons samband talar resultatet frÄn en meta-analys, som visade pÄ en dubblerad risk för högexponerade relativt lÄgexponerade. De sammanvÀgda resultaten stödjer slutsatsen att arbete med vibrerande maskiner kan utgöra en enskild riskfaktor för Dupuytrens sjukdom, beaktat att underlaget Àr litet och att det finns en interaktion mellan Älder och exponering samt att det kan finnas individuella skillnader i predisposition

    Röntgendiagnosticerad handartros i relation till exponering för handöverförda vibrationer. En systematisk kunskapsöversikt och meta-analys.

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    Source at https://hdl.handle.net/2077/73757.Det finns idag ingen uppdaterad evidensbaserad systematisk kunskapsöversikt för sambandet mellan hand-arm vibrationsexponering och röntgen diagnosticerad artros i finger- och handled respektive för benuppluckring (malaci) av handlovsben dÀr vibrationsexponeringsnivÄerna kan jÀmföras. Det saknas Àven riskbedömningsmodeller som medger risk-vÀrdering utifrÄn exponerings-respons samband. Följande systematiska kunskapsöversikt syftar till att specifikt besvara frÄgan om röntgendiagnosticerade artrosförÀndringar i hÀnderna Àr relaterat till exponering för hand över förda vibrationer. Syftet avgrÀnsas sÄlunda till enbart studier pÄ karaktÀ-ristiska röntgenfynd för artros och bortser frÄn de studier som utgÄr frÄn kliniska fynd och subjektiva besvÀr. Kunskapsöversikten syftar Àven till att bedöma eventuellt exponerings-svars sam band mellan vibrationsdos och röntgendiagnosticerade artrosförÀndringar samt vÀrdera sambandet med hÀnsyn tagen till modifierande individfaktorer liksom annan sam varierande exponering

    Neuromusculoskeletal disorders in the neck and upper extremities among drivers of all-terrain vehicles – a case series

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    BACKGROUND: The purpose of this study was to investigate whether professional drivers of all-terrain vehicles (ATVs) with neck pain have a different array of neuromusculoskeletal disorders in the neck and upper extremities than a referent group with neck pain from the general population. It is hypothesized that exposure to shock-type vibration and unfavorable working postures in ATVs have the capacity to cause peripheral nervous lesions. METHODS: This study was based on a case series analyzed according to a case-case comparison design. The study population consisted of 60 male subjects, including professional drivers of forest machines (n = 15), snowmobiles (n = 15), snowgroomers (n = 15) and referents from the general population (n = 15) all of whom had reported neck pain in a questionnaire and underwent an extensive physical examination of the neck and upper extremities. Based on symptom history, symptoms and signs, and in some cases chemical, electroneurographical and radiological findings, subjects were classified as having a nociceptive or neuropathic disorder or a mix of these types. RESULTS: The occurrence of asymmetrical and focal neuropathies (peripheral nervous lesion), pure or in a mix with a nociceptive disorder was common among cases in the ATV driver groups (47%–79%). This contrasted with the referents that were less often classified as having asymmetrical and focal neuropathy (27%), but instead had more nociceptive disorders. The difference was most pronounced among drivers of snowgroomers, while drivers of forest machines were more frequently classified as having a nociceptive disorder originating in the muscles. CONCLUSION: This study found a high prevalence of assymetrical and focal neuropathies among drivers with pain in the neck, operating various ATVs. It seems as if exposure to shock-type whole-body vibration (WBV) and appurtenant unfavorable postures in ATVs may be associated to peripheral nervous lesions

    Systematiska kunskapsöversikter 9. KÀrl- och nervskador i relation till exponering för handöverförda vibrationer

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    Arbete med vibrerande maskiner har associerats med en ökad förekomst av skador pĂ„ övre extremitetens vaskulĂ€ra, neurologiska och muskuloskeletala system. Aktuell riskbedömningsmodell för vibrationsskada (ISO-5349) bygger pĂ„ ett fĂ„tal studier dĂ€r enbart kĂ€rlskada ("Raynauds fenomen") beaktats. De 7 studier som utgör grunden till modellen har alla publicerats under perioden 1946 till 1977. För neurosensorisk skada och karpaltunnelsyndrom saknas riktlinjer för riskbedömning. Det saknas Ă€ven systematiska kunskapsöversikter och statistiska synteser (meta-analyser) av det vetenskapliga underlaget för de olika skadornas risk. Denna rapport syftar till att ge en systematisk kunskapsöversikt över aktuell litteratur för sambandet mellan Raynauds fenomen, neurosensorisk sjukdom och karpaltunnelsyndrom och hand-arm vibrationsexponering (HAV) samt att uppskatta storleken av ett sĂ„dant samband genom statistisk syntes (meta-analys). VĂ„r granskning omfattar den engelsksprĂ„kiga vetenskapliga litteraturen fram till januari 2016. Litteratursökningen omfattade PubMed och Science Direct. Litteratursökningen gav totalt 4325 abstracts, vilka alla lĂ€stes och bedömdes enligt förutbestĂ€mda kriterier. 293 artiklar granskades i sin helhet och bedömdes utifrĂ„n risk för bias (”kvalitet”) avseende exponering, design, och diagnostisk precision. 52 artiklar mötte de förutbestĂ€mda kriterierna för att ingĂ„ i den slutgiltiga analysen. Resultaten visar att arbetare som exponeras för HAV uppvisar en ökad risk för vaskulĂ€r och neurologisk sjukdom jĂ€mfört med icke-vibrationsexponerade grupper. Den berĂ€knade risken (oddskvot) för Raynauds fenomen var 6,9 nĂ€r analysen begrĂ€nsades till studier med lĂ„g risk för bias (dvs hög ”kvalitet”). Motsvarande risk för neurosensorisk skada var 7,4 och 2,9 för karpaltunnelsyndrom. VĂ„ra analyser visar att neurosensorisk skada uppkommer tidigare Ă€n Raynauds fenomen, vid likvĂ€rdig exponering

    Raynaudâ€Čs phenomenon among men and women with noise-induced hearing loss in relation to vibration exposure

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    Raynaudâ€Čs phenomenon is characterized by constriction in blood supply to the fingers causing finger blanching, of white fingers (WF) and is triggered by cold. Earlier studies found that workers using vibrating hand-held tools and who had vibration-induced white fingers (VWF) had an increased risk for hearing loss compared with workers without VWF. This study examined the occurrence of Raynaudâ€Čs phenomenon among men and women with noise-induced hearing loss in relation to vibration exposure. All 342 participants had a confirmed noise-induced hearing loss medico legally accepted as work-related by AFA Insurance. Each subject answered a questionnaire concerning their health status and the kinds of exposures they had at the time when their hearing loss was first discovered. The questionnaire covered types of exposures, discomforts in the hands or fingers, diseases and medications affecting the blood circulation, the use of alcohol and tobacco and for women, the use of hormones and whether they had been pregnant. The participation rate was 41% (n = 133) with 38% (n = 94) for men and 50% (n = 39) for women. 84 men and 36 women specified if they had Raynaudâ€Čs phenomenon and also if they had used hand-held vibrating machines. Nearly 41% of them had used hand-held vibrating machines and 18% had used vibrating machines at least 2 h each workday. There were 23 men/6 women with Raynaudâ€Čs phenomenon. 37% reported WF among those participants who were exposed to hand-arm vibration (HAV) and 15% among those not exposed to HAV. Among the participants with hearing loss with daily use of vibrating hand-held tools more than twice as many reports WF compared with participants that did not use vibrating hand-held tools. This could be interpreted as Raynaudâ€Čs phenomenon could be associated with an increased risk for noise-induced hearing loss. However, the low participation rate limits the generalization of the results from this study
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