Magnetic field exposure and arrythmic risk: evaluation in railway drivers

Santangelo, L; Grazia, Massimo Di; Liotti, Federica; Maria, Elia De; Calabrò, Raffaele; Sannolo, Nicola

doi:10.1007/s00420-004-0541-2

Cited by 5 publications

(8 citation statements)

References 32 publications

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“…Exposures to chemicals or electric shocks, which often occur in other occupational settings (for example in electric utility workers or welders) are rare. Previous studies of railway workers have focussed on cancer risks [4][5][6][7][8] , chromosomal aberrations [9] and cardiovascular disease [10,11] . Only 1 such study has so far investigated the risk of neurodegenerative diseases in railway employees [12] .…”

mentioning

confidence: 99%

Mortality from Neurodegenerative Disease and Exposure to Extremely Low-Frequency Magnetic Fields: 31 Years of Observations on Swiss Railway Employees

et al. 2007

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Aims: The objective of the present study was to investigate the relationship between extremely low-frequency magnetic field (ELF-MF) exposure and mortality from several neurodegenerative conditions in Swiss railway employees. Methods: We studied a cohort of 20,141 Swiss railway employees with 464,129 person-years of follow-up between 1972 and 2002. For each individual, cumulative exposure was calculated from on-site measurements and modelling of past exposure. We compared cause-specific mortality in highly exposed train drivers (mean exposure: 21 µT) with less exposed occupational groups (for example station masters: 1 µT). Results: The hazard ratio for train drivers compared to station masters was 1.96 [95% confidence interval (CI) = 0.98–3.92] for senile dementia and 3.15 (95% CI = 0.90–11.04) for Alzheimer’s disease. For every 10 µT years of cumulative exposure senile dementia mortality increased by 5.7% (95% CI = 1.3–10.4), Alzheimer’s disease by 9.4% (95% CI = 2.7–16.4) and amyotrophic lateral sclerosis by 2.1% (95% CI = –6.8 to 11.7). There was no evidence for an increase in mortality from Parkinson’s disease and multiple sclerosis. Conclusions: This study suggests a link between exposure to ELF-MF and Alzheimer’s disease and indicates that ELF-MF might act in later stages of the disease process.

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confidence: 99%

Mortality from Neurodegenerative Disease and Exposure to Extremely Low-Frequency Magnetic Fields: 31 Years of Observations on Swiss Railway Employees

et al. 2007

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“…As Table 2 suggests, magnetic flux density at the times of acceleration and breaking showed a significant difference in AC (P < 0.001) and ACi trains (P < 0.002). In the same study as well as in the research by Farag et al (2003) (10), it was revealed that the magnetic flux density also increases with increasing speed. The speed difference is also observed in in-city and intercity trains of Tehran City.…”

Section: Discussionmentioning

confidence: 49%

“…A number of studies have warned about the health effects of exposure to MF in rail transit. The most commonly reported of which include a 3-fold increased risk for chronic lymphocytic leukemia in engine drivers (7), double incidence rate of chronic and acute lymphocytic leukemia in engine drivers and conductors compared to the average Swedish male population (8), altering the urinary 6-hydroxymelatonin sulfate excretion (9), increased risk of sudden cardiac death (10), and cardiovascular mortality (11). Exposure to MF induced by electrified public transport has been the center of concern in different countries such as Malaysia (12), Russia (13,14), Italy (15), and Australia (4).…”

Section: Introductionmentioning

confidence: 99%

Occupational Exposure of Train Drivers to Static and Extremely Low Frequency Magnetic Fields in Tehran Subway

Jalilian

Najafi

Monazzam

et al. 2017

Jundishapur J Health Sci

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Background: Electrification of transport systems currently deserves top priority in Iran. Such systems generate a magnetic field in static or extremely low frequency ranges. Therefore, train drivers may be exposed to these fields occupationally. Objectives: The current study aimed to measure the intensity of static magnetic field (SMF) and extremely low frequency magnetic fields (ELF-MF) in the subway trains of Tehran City in different train types and situations to show drivers' exposure to SMF and ELF-MF. Methods: Two AC and DC trains were randomly selected from lines 1 and 2, one AC train from line 4, and two ACi trains from line 5. The SMF and ELF-MF levels were measured based on BS EN 50500:2008 and recommendations in other studies using TES-1394 (ELF-MF meter) and . Ceiling values of ELF-MF and SMF were used for assessment of train driver's exposure. One-way ANOVA, with Tukey post hoc test, and independent sample T-test were used for data analysis.

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“…As mentioned by the authors, this could lead to criticism that "actual levels of EMF exposure in some of these occupational groups are somewhat uncertain" (Ahlbom et al 2004). Similarly, the study by Santangelo et al (2005) consisted of only 28 railway drivers; the authors also suggested that confounding factors such as stress and the timing of measurements taken for the referent group (within 6-20 h after exposure) could have played a role in the study outcome.…”

Section: Epidemiological Studiesmentioning

confidence: 89%

“…Despite these changes, no eVect was found on mean HR or HRV. Santangelo et al (2005) studied arrhythmic risk in a small population of 28 railway drivers exposed to ELF-EMF; they found that not only did exposure not increase the risk of arrhythmias, but also it had no apparent aVect on HRV. Most recently, Bortkiewicz et al studied neurovegetative disturbances in 63 switchyard workers exposed to 50 Hz EMFs.…”

Section: Epidemiological Studiesmentioning

confidence: 99%

A literature review: the cardiovascular effects of exposure to extremely low frequency electromagnetic fields

McNamee

Legros

Krewski

et al. 2009

Int Arch Occup Environ Health

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The effects of exposure to extremely low frequency (ELF) electromagnetic fields (EMFs) on human cardiovascular parameters remain undetermined. Epidemiological studies have utilized dosimetry estimations of employee workplace exposure using altered heart rate variability (HRV) as predictive of certain cardiovascular pathologies. Laboratory studies have focused on macrocirculatory indicators including heart rate, HRV and blood pressure. Few studies have been conducted on the response of the microcirculatory system to EMF exposure. Attempts to replicate both epidemiological and laboratory studies have been mostly unsuccessful as study design, small sample populations and confounding variables have hampered progress to date. Identification of these problems, in the current context of international exposure guideline re-evaluation, is essential for future EMF studies. These studies should address the possible deleterious health effects of EMFs as well as the detection and characterization of subtle physiological changes they may induce. Recommendations for future work include investigating the macro- and microcirculatory relationship and the use of laboratory geomagnetic shielding.

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Magnetic field exposure and arrythmic risk: evaluation in railway drivers

Cited by 5 publications

References 32 publications

Mortality from Neurodegenerative Disease and Exposure to Extremely Low-Frequency Magnetic Fields: 31 Years of Observations on Swiss Railway Employees

Mortality from Neurodegenerative Disease and Exposure to Extremely Low-Frequency Magnetic Fields: 31 Years of Observations on Swiss Railway Employees

Occupational Exposure of Train Drivers to Static and Extremely Low Frequency Magnetic Fields in Tehran Subway

A literature review: the cardiovascular effects of exposure to extremely low frequency electromagnetic fields

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