[Pre- and postpartum hemostatic characteristics in pregnancy-related hypertension and pre-eclampsia in comparison with normotensive pregnancies].

Pregnancy is accompanied by a physiological activation of intravascular coagulation; however without disorder. Normal markers of coagulation are unchanged despite activation. Special coagulation parameter--such as Thrombin-Antithrombin-III-complex (TAT) or D-Dimer are increased also in normal pregnant women. Pregnancy induced hypertension (SIH) and preeklampsia may be associated with a disorder of coagulation that precedes the well known clinical manifestation of hypertension. Therefore it was the aim of the study to distinguish both the pregnancy induced hypertension (15 patients) and preeklampsia (10 patients) as far as it is possible by coagulation parameters such as thrombin generation (by TAT), fibrinolysis (by D-Dimer), AT-III, platelets and others comparing them with 25 normotensive pregnancies. In preeklampsia, the results showed that clinical signs were associated with simultaneous coagulation abnormalities. TAT and D-Dimere are significant increased whereas a decrease of AT-III and platelets was observed. There are no significant differences between SIH and normal pregnancies. Three days after delivery there was an increase of D-Dimer, AT-III and platelets and a decrease of TAT-complex in all groups. For risk pregnancy, the parameters TAT and D-Dimer may be useful as screening test. They although may support confirming the diagnosis of preeklampsia.