Summary
1. The effect of a standard, potent fibrinolytic enzyme therapy has been compared
in fasting and lipemic dogs.
2. The standard fibrinolytic regimen resulted in the complete dissolution of all clots
produced experimentally in the fasting state in 10 dogs.
3. Clots formed during alimentary lipemia exhibited a markedly increased resistance
to the standard fibrinolytic regimen in 6 dogs.
4. An increase in anti plasmin fibrinolytic titer with concomitant decrease in spontaneous
fibrinolytic activity was observed in 15 dogs following the administration of a fatty
meal. No difference in fibrinolytic activity and APF titer was demonstrable in fasting
and lipemic blood samples obtained during fibrinolytic enzyme treatment.
5. The possibility of the presence of specific inhibitors against the fibrinolytic
enzyme in clots formed during lipemia has been investigated and the evidence to support
this theory is discussed.