[Blood coagulation studies of therapeutic abortion induced by 15-methyl-prostaglandin F2 alpha].

10 women with unwanted pregnancies in the first and second trimester were terminated by use of intramuscular injections of 15-Methyl-PGF2alpha. Studies of bleeding and recalcification time, platelet count, levels of heat-fibrin, prothrombin, partial thromboplastin time, platelet adhesiveness and heparinocytes were performed before treatment. 30 minutes, 4 and 8 hours after beginning of 15-Methyl-PGF2alpha-administration, 2 hours after the expulsion of the product of conception and 24 hours after first investigation. Prothrombin decreased during treatment with 15-Methyl-PGF2alpha and did not obtain the starting value 24 hours after first investigation. Platelet count showed an equal attitude. The time of recalcification increased continuous. Heparinocytes continuous decreased up to 2 hours after expulsion of the product of conception. 24 hours after first investigation a significant ascent was noticed. The results of the studies on coagulation did not indicate a strong injury of coagulation system. They suggest the positive estimation of termination of pregnancy in the first and second trimester with 15-Methyl-PGF2alpha.