OBJECTIVES The objective of this study was to investigate the mortality of electrical utility workers exposed to electric and magnetic fields. METHODS A historical cohort mortality study was carried out on 21,744 workers who were employed in an electrical company in the province of Québec between 1970 and 1988. The last job held by each study subject was coded. A job exposure matrix (JEM) was...

Objective(s): It is known that extremely low frequency-pulsed electromagnetic fields (ELF-PEMF) influence multiple cellular and molecular processes. Retinal pigment epithelial (RPE) cells have a significant part in the emergence and pathophysiology of several ocular disorders, such as neovascularization. This study assessed the impact of ELF-PEMF on the proangiogenic features of RPE cells. Mate...

Various types of magnetic and electromagnetic fields are now in successful use in modern medicine. Electromagnetic therapy carries the promise to heal numerous health problems, even where conventional medicine has failed. Today, magnetotherapy provides a non invasive, safe, and easy method to directly treat the site of injury, the source of pain and inflammation, and a variety of diseases and p...

BACKGROUND Avascular necrosis of the femoral head causes significant morbidity and occurs in up to 20,000 people per year. A variety of nonoperative and operative measures have been trialled however a definitive treatment algorithm is yet to be established. Young adults in many cases have undergone multiple surgical procedures in their lifetime with increasing risks of complications. Less invas...

OBJECTIVE To assess the effectiveness of pulsed electromagnetic fields compared with placebo in the management of osteoarthritis of the knee. DATA SOURCES A systematic review of PubMed, EMBASE, and the Cochrane Controlled Trials Register. METHODS Randomized, controlled trials reporting on the blinded comparison of pulsed electromagnetic fields with placebo were included. Validity was tested...

Previous studies have shown that magnetic fields have subtle effects on pain perception in animals as well as humans. Experiments with sinusoidal extremely low frequency magnetic fields as well as pulsed electromagnetic fields (PEMF) have indicated that PEMF may have a larger analgesic effect, and so may be more clinically relevant. Indeed, these effects have been demonstrated to be specific to...

Non-thermal biological effect of modulated radio frequency electromagnetic fields on vasodilatation of anesthetized Xenopus laevis was demonstrated. Irradiated electromagnetic field was 10 MHz, 7.3 mG, 2.19 V/m, pulsed wave with 10 kHz burst rate. The vasodilatory effect was specific for pulsed waves because magnitude of this effect depended on duty ratio and no effect was observed for continuo...