[Disorders of central hemodynamics and water-salt metabolism in miners in deep coal mines].
In a study into the condition of central hemodynamics and water-salt metabolism made in 85 essentially healthy underground miners working in a coal mine those miners greater than 40 years old exhibited an increase in the peripheral vascular resistance together with a decrease in the power of the left ventricle and a rise in energy expenditure on blood redirection, which fact led to lowering of both volume- and velocity-related parameters for hemodynamics. Worsening of hemodynamic indexes was noted to be going on parallel to changes in water-salt metabolism: workers beyond thirty years of age showed an augmentation of the level of Na+ and creatinine in blood plasma, those greater than 40 years old demonstrated a reduction in urine creatinine, in those beyond fifty years of age glomerular filtration rate was found to be on decrease with fractional excretion of Na+ being on the increase.
Rebrov
B A
BA
Lymar'
S P
SP
D000328:Adult; D000375:Aging / Q000502:physiology; D003032:Coal Mining / Q000706:statistics & numerical data; D006439:Hemodynamics / Q000502:physiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D016273:Occupational Exposure / Q000009:adverse effects* / Q000706:statistics & numerical data; D014455:Ukraine; D014882:Water-Electrolyte Balance / Q000502:physiology*