the main factors that determine the stable positive countershock effect of counterpulsation in myocardial infarction cases complicated by cardiogenic shock include early introduction of counterpulsation into the set of therapeutic and resuscitation measures , high capacity of assisted circulation devices ( up to 31/min . ) , long duration of continuous counterpulsation ( not less than 12 hours ) .
C0027051
myocardial infarction
C0036980
cardiogenic shock