An expert evaluation of identifiability of cardiovascular diseases was carried out together with a clinical and functional examination of certain groups of miners of basic underground occupations at different ages and lengths of service, that showed a high incidence of cardiovascular diseases along with a low informative value of methodical approaches, indices and criteria used for their diagnosis in conducting preliminary and periodic health check-ups. To improve the quality of diagnosis of diseases of the circulatory system it is necessary that standardized methods of investigation should be employed together with consistent indices of high informative value as well as a purposive training of physicians.
Miners working in deep coal mines, engaged in hard physical work under most harsh mine conditions demonstrate a striking imbalance between pro- and antiinflammatory cytokines and a rise in the blood levels of electrolytes K+ and Na+ as well. The analysis performed revealed a direct correlation between the level of blood concentration of IL-6 and that of K+, Na+.
The authors studied psychophysiologic state of operators in coal industry and metallurgy, who were considered healthy and suitable for the work. Only 60% of the examined metallurgy operators and 21% of those engaged into coal industry appeared to meet the occupational medical requirements. By the end of the working shift 50% of the operators showed decrease of attention and 28-36%--depression of visual and hearing memory. Occupational overload induced compromised psychophysiologic parameters in 70% of the examinees. Heating combined with other hazards resulted in marked asymmetry of heating sensation, changed body heating, lower hearing sensation, worse attention, memory, decision making, emotional state.
Lipid and antioxidant state of clinically normal subjects working in deep mines was studied under natural conditions during one month. Disorders in lipid metabolism and intensified peroxidation were recorded in these subjects. A prophylactic ration has been recommended considering the food status, alimentary risk factors and extreme conditions of miners' labour.