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Electrical injury in relation to voltage, "no-let-go" phenomenon, symptoms and perceived safety culture: a survey of Swedish male electricians
Department of Occupational and Environmental Medicin, Örebro University Hospital, Örebro, Sweden; Department of Physiotherapy, Örebro University Hospital, Örebro, Sweden.
Örebro universitet, Institutionen för hälsovetenskaper.ORCID-id: 0000-0002-9760-3785
Division of Occupational and Environmental Medicine, Scania University Hospital, Lund, Sweden.
Ergonomics and Aerosol Technology, Department of Design Sciences, Lund University, Lund, Sweden.
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2016 (Engelska)Ingår i: International Archives of Occupational and Environmental Health, ISSN 0340-0131, E-ISSN 1432-1246, Vol. 89, nr 2, s. 261-270Artikel i tidskrift (Refereegranskat) Published
Resurstyp
Text
Abstract [en]

Professional electricians are highly subjected to electrical injuries. Previous studies describing symptoms after electrical injury have not included people with less severe initial injuries. The purpose of the present study was to describe symptoms at different time points after electrical injury, the impact of "no-let-go" phenomenon and different electrical potential [high voltage (HV) vs. low voltage (LV)], and the safety culture at the workplace.

A retrospective survey was conducted with 523 Swedish electricians. Two questionnaires were issued: the first to identify electricians who had experienced electrical injury and the second to gain information about symptoms and safety culture. Self-reported symptoms were described at different time points following injury. Symptoms for HV and LV accidents were compared. Occurrence or nonoccurrence of "no-let-go" phenomenon was analysed using two-tailed Chi-2. Safety culture was assessed with a validated questionnaire.

Nearly all reported having symptoms directly after the injury, mainly paraesthesia and pain. For the first weeks after injury, pain and muscle weakness dominated. The most frequently occurring symptoms at follow-up were pain, muscle weakness and loss of sensation. HV injuries and "no-let go" phenomenon were associated with more sustained symptoms. Deficiencies in the reporting routines were present, as well as shortage of preventive measures.

The results indicate that symptoms are reported also long time after an electrical injury and that special attention should be paid to HV injuries and "no-let go" accidents. The workplace routines to reduce the number of work-related electrical injuries for Swedish electricians can be improved.

Ort, förlag, år, upplaga, sidor
Springer, 2016. Vol. 89, nr 2, s. 261-270
Nyckelord [en]
Electrical injury, Low-voltage injury, High-voltage injury, Safety management, Neurological symptoms, Pain
Nationell ämneskategori
Folkhälsovetenskap, global hälsa, socialmedicin och epidemiologi
Forskningsämne
Folkhälsovetenskap
Identifikatorer
URN: urn:nbn:se:oru:diva-48474DOI: 10.1007/s00420-015-1069-3ISI: 000368806500008PubMedID: 26186954Scopus ID: 2-s2.0-84955733403OAI: oai:DiVA.org:oru-48474DiVA, id: diva2:906094
Forskningsfinansiär
Forte, Forskningsrådet för hälsa, arbetsliv och välfärd, 2010-0561
Anmärkning

Funding Agency:

Örebro Research Committee

Tillgänglig från: 2016-02-23 Skapad: 2016-02-23 Senast uppdaterad: 2019-03-22Bibliografiskt granskad
Ingår i avhandling
1. Self-reported symptoms and neurosensory function after electrical accidents: a survey among Swedish male electricians
Öppna denna publikation i ny flik eller fönster >>Self-reported symptoms and neurosensory function after electrical accidents: a survey among Swedish male electricians
2016 (Engelska)Licentiatavhandling, sammanläggning (Övrigt vetenskapligt)
Abstract [en]

Professionals working in electrical fields are at risk for accidental exposure to electricity on a daily basis. Electrical accidents can cause long-term sequelae manifesting as neurological symptoms, including in the peripheral nervous system.

The overall aim of this licentiate thesis was to describe the occurrence of selfreported and neurosensory symptoms after electrical accidents. Specifically, this thesis aimed to I) describe self-reported symptoms at different points in time; II) assess neurosensory function in relation to previous electrical accidents; III) evaluate the impact of high vs. low voltage as well as that of the no-let-go phenomenon; and IV) gain knowledge about the safety culture among Swedish electricians.

A retrospective survey including 523 Swedish male electricians was conducted. Electricians reporting persistent symptoms were invited to a clinical examination that included quantitative sensory testing (QST); 23 electricians participated. The most commonly self-reported symptoms associated with electrical accidents were pain, reduced sensation and reduced muscle function. For a small percentage, these symptoms were persistent. Reduced neurosensory function with regard to thermal perception was determined using QST and functional testing and was particularly evident in the thermal perception tests; roughly half of the group exhibited abnormally reduced clinical warmth and cold perception thresholds and tactile gnosis test values, the latter of which were all below normal except for those of two electricians. The findings also indicate that electricians accidentally exposed to high voltage (HV) frequently report more symptoms than do electricians exposed to low voltage (LV). There were deficiencies in the preventative efforts and reporting routines pertinent to potential electrical accidents. In summary, the main results of this licentiate thesis show that sensory symptoms can be persistent, especially after an HV accident, and that these selfreported symptoms can be manifested as injuries on the small nerve fibres. The results of the present study can provide methods to be used for follow-up testing in clinical practise. Furthermore, there is a need to improve the workplace safety culture for electricians in order to improve the numbers of follow-ups.

Ort, förlag, år, upplaga, sidor
Örebro: Örebro University, 2016. s. 58
Nyckelord
Electrical accident, Neurosensory symptoms, No-let-go phenomenon, Pain, Voltage, Quantitative Sensory Testing
Nationell ämneskategori
Allmänmedicin
Identifikatorer
urn:nbn:se:oru:diva-50982 (URN)
Presentation
2016-06-14, Campus USÖ, Örebro universitet, hörsal C1, Södra Grev Rosengatan, Örebro, 09:00 (Svenska)
Opponent
Handledare
Tillgänglig från: 2016-06-21 Skapad: 2016-06-21 Senast uppdaterad: 2019-03-22Bibliografiskt granskad

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Rådman, LisaNilsagård, YlvaGunnarsson, Lars-Gunnar

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International Archives of Occupational and Environmental Health
Folkhälsovetenskap, global hälsa, socialmedicin och epidemiologi

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