Central and peripheral hemodynamics, organic (cerebral) blood flow, hemostasis system, clinical and biochemical values were comprehensively studied in 112 pregnant females with various severity of late gestoses (LG). As a result, there were developed diagnostic criteria both for the levels of severity and for its grave complication--the syndrome of disseminated intravascular blood coagulation. In 61 females the developed methods of efficient intensive care permitted to continue pregnancy up to spontaneous delivery.