[Effect of acute hypoxia on coronary and systemic hemodynamics]. / Vliianie ostroi gipoksii na koronarnuiu i sistemnuiu gemodinamiku.

Variations in coronary circulation, cardiac output and heart rate were examined by dopplerography in 14 test subjects kept in an altitude chamber. It was found that during acute hypoxia the effective coronary blood flow decreased distinctly prior to general circulatory disorders. It is recommended to monitor coronary circulation during altitude exposures.