[The hemostatic system in pregnant women and puerperae with the tetralogy of Fallot].

The hemostasis system was studied in 31 pregnant women with Fallot's tetralogy, aged 18 to 32. In women with a history of radical correction of this condition a subcompensated form of the DIC syndrome was detected, manifesting as chronometric and structural hypercoagulation and platelet hyperaggregation. In patients with the cyanotic form of Fallot's tetralogy hypocoagulation thrombophilia was revealed, that was due to deficiency of contact factors (Hageman factor, highly molecular kininogene) and that was responsible for thrombohemorrhagic complications in these patients. Replacement therapy is recommended for such cases in labor and controlled anti-thrombotic therapy in the postpartum period.