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[Effect of working conditions in deep coal mines of the Donetsk region on the course of ischemic heart disease in miners].

Clinical and functional examination of the miners who suffered from coronary heart disease showed a higher ectopic activity of the myocardium during their work under underground conditions and during the subsequent 4 hours after its termination. It also indicated a significantly higher fatal cases of sudden coronary death in the miners in the aforementioned periods. To prevent the development of complications occurred in miners, the status of the cardiovascular system was proposed to be dynamically controlled.