O`Brien TE, Woodford M, Irving MH.
The effect of intermittent compression of the calf on the fibrinolytic
responses in the blood during a surgical operation.
Surg Gynecol Obstet 1979 Sep;149(3):380-4

The fibrinolytic responses in the blood during surgical operation have been studied
in two groups of patients during intraoperative intermittent compression of the calf.
Fibrinolytic activity did not differ significantly between the groups. The
postoperative fibrinolytic shutdown was not prevented by intermittent compression of the calf.
It is concluded that, whatever the mechanism by which venous thrombosis is
prevented by intermittent compression of the calf, it is not by further
stimulation of systemic fibrinolysis.