PULMONARY ARTERIAL HYPERTENSION IN THE NORTH

20 apparently healthy patients (non-residents, living on the North from 5 to 15 years) were observed in Surgut District Hospital, men aged 24-62 (median age 47, 3 + 2,6), working full-time inside were included in the 1st group. The 2nd group included 15 male non-residents (living on the North from 12 to 25 years) aged 25-48, working full-time outside. It was determined that EchoCG circulatory dynamics indices of 1st group members were within normal range, while 2nd group members had accurate increase of right ventricle anterior wall thickness (up to 0,47+0,05), mean pulmonary arterial pressure increase (up to 39, 8+1,3), average pulmonary pressure (up to 25, 14+1,2). Therefore, north pulmo-nary arterial hypertension in Surgut was detected at apparently healthy patients, doing physically demanding job in cold period outside.