[Disorders of cerebral hemodynamics in workers of ore mining and processing enterprise].

Using Doppler technologies, the authors studied blood flow in carotid and vertebral basillary systems of brain circulation, in orbital and central retinal arteries among workers of major occupations in ore mining and processing enterprise, who are subjected to occupational hazards complex. Workers with length of service over 20 years appeared to have stenosis and occlusion of medial cerebral artery and basillary artery.