[Influence on haemostasis exercised by Prostaglandin F2alpha in missed abortion (author's transl)].

The changes in the coagulation and the fibrinolytic system which may be related to the dead fetus syndrome indicate an interference of the activation of both coagulation and fibrinolysis. During termination of missed abortion and missed labour disorders of the haemostasis may occur acutely. In 16 patients with intrauterine death coagulation studies were performed inducing labour with PgF2alpha intraamniotically or i.v. No essentiel changes in the plasmatic system of coagulation and fibrinolysis were found. After i.a. application of PgF2alpha, the ADP- and collagen-induced as well as the spontaneous platelet aggregation didn't change. Using PgF2alpha i.v. a diminuation of the initially increased platelet aggregation was found in all parameters, whereas desaggregation was increased. These changes may influence an already existing latent consumption of coagulation factors in a favourable way. A further advantage of prostaglandins consists in the fact that smaller traumata occur, compared with curettage, so the possibility of liberation of thrombo-plastic material is reduced.