Document Detail

Cutaneous microcirculation is not altered by a weak 50 Hz magnetic field.
MedLine Citation:
PMID:  15792196     Owner:  NLM     Status:  MEDLINE    
Electromagnetic hypersensitivity (EH) is an increasing problem in modern industrial societies. As crawling sensations are frequently mentioned by EH patients alterations in cutaneous microcirculation possibly linked to exposure to magnetic fields might be involved in the development of such sensations and further dysesthesias. In seven healthy volunteers and in three persons convinced to suffer from EH the microcirculation of the right thumb was determined by laser-Doppler-flowmetry (LDF) during exposure to circularly polarized 50 Hz magnetic flux densities of 96 mT. During field exposure the LDF values remained constant. The LDF ratio "field on/field off" was found to be 1.03 +/- 0.03. In contrast, reactive hyperemia and hyperventilation caused significant changes in the LDF values of volunteers as well as of EH patients. Following arterial congestion of the forearm microcirculation of the thumb was clearly increased during reperfusion, and the LDF values were elevated up to 2.02 +/- 0.36. 10 deep breaths caused a significant decrease in the LDF values up to 0.63 +/- 0.18. In conclusion, reactive hyperemia and hyperventilation caused clear alterations of cutaneous microcirculation, whereas, 50 Hz magnetic fields had no influence on cutaneous microcirculation.
F Wenzel; J Reissenweber; E David
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Publication Detail:
Type:  Clinical Trial; Controlled Clinical Trial; Journal Article    
Journal Detail:
Title:  Biomedizinische Technik. Biomedical engineering     Volume:  50     ISSN:  0013-5585     ISO Abbreviation:  Biomed Tech (Berl)     Publication Date:    2005 Jan-Feb
Date Detail:
Created Date:  2005-03-28     Completed Date:  2005-04-28     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  1262533     Medline TA:  Biomed Tech (Berl)     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  14-8     Citation Subset:  IM    
Institute for Hemostaseology and Transfusion Medicine, University of Düsseldorf, Moorenstrasse 5, D-40225 Düsseldorf, Germany.
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MeSH Terms
Blood Flow Velocity / radiation effects*
Electricity / adverse effects
Electromagnetic Fields / adverse effects*
Environmental Exposure / adverse effects
Microcirculation / radiation effects*
Radiation Dosage
Radiation Injuries / etiology*,  physiopathology*
Risk Assessment / methods
Risk Factors
Skin / blood supply*,  radiation effects*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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