[Can angiography system with large-area flat digital panel induce higher irradiation in a patient during coronary angiography].

Background: Nowadays, angiography systems with flat digital panel are used in cardiology and invasive radiology as the detector of irradiation. The so called universal systems with a magnified panel are becoming more common. In this study we tried to find out whether in practice the increased surface area of detectors may increase the absorption dose in a patient.

Electrocardiographic changes in workers occupationally exposed to lead.

Background: The significance of heavy metals in pathogenesis of the circulatory system diseases remains unresolved. The aim of the study was to evaluate electrocardiographic changes in workers occupationally exposed to lead without clinical presentation of cardiac involvement.

Methods: A group of 60 smelters and refiners and 45 healthy men, as a control group, were enrolled.

[The cardiovascular risk in chemical factory workers exposed to mercury vapor].

Background: Cardiovascular diseases, including hypertension, are a leading cause of death in developing and developed countries. Mercury can induce hypertension and atherosclerosis in experimental animals and humans. The assessment of the effect of mercury on the occurrence of cardiovascular system disturbances in the population is an essential task.

The influence of the call with a mobile phone on heart rate variability parameters in healthy volunteers.

It is possible that electromagnetic field (EMF) generated by mobile phones (MP) may have an influence on the autonomic nervous system (ANS) and modulates the function of circulatory system. The aim of the study was to estimate the influence of the call with a mobile phone on heart rate variability (HRV) in young healthy people. The time and frequency domain HRV analyses were performed to assess the changes in sympathovagal balance in a group of 32 healthy students with normal electrocardiogram (ECG) and echocardiogram at rest.

[Occupational medicine as a science for the future].

Paper presents future trends of occupational medicine development, main issues of research and medical education. In paper authors also indicate the crucial role of occupational medicine in the field of health policy, health promotion and prevention.