Risk assessment of stuctural-functional vascular abnormalities development of workers, engaged in chrome ore underground mining

It was established that miners working conditions are connected with labour process combined negative influence of physical and chemical factors and are characterized as "harmful, 3-4 degrees". The clinic-functional survey of the chromium mine 135 workers was carried out. Study group consisted of 88 miners; comparison group consisted of 47 mine workers, who did not have productive contact with harmful factors associated with the mining of chrome ore. All persons examined are male; age-30-49 years; work experience - from 5 to 25 years. It is established, that half of miners, whose work experience is less than 10 years, have an early endothelium insolvency of functional activity, and employees, who are not connected with underground working conditions, have relative risk of its development up to 8 times higher. 10% of miners, who have the working experience more than 10 years, have a significant reduction of cardiorespiratory system functional reserves. The relative risk of development of vascular wall atherosclerotic changes of miners is from 3.5 to 12 times higher than have the workers, who are not associated with the mining of chrome ore. Direct connection between functional activity decrease of endothelium and of cardiorespiratory system adaptive reserves and high content of chromium in the blood of miners is established.