By the method of colored full-duplex research (CDK) speeds of blood flow were fixed in the great arteries of head and neck in 60 pregnant women before their pregnancy and in its critical terms. Absence of reliable distinctions of the studied indexes is shown at the uncomplicated pregnancy course in healthy women, in the patients of the preeclampsia risk group in presence of gestational edemas. The presence of head and neck vessels spasm is proved in the I trimester of pregnancy in patients, in which pregnancy was complicated with preeclampsia in future. Conclusions are done about possibility of the use of the indicated symptom as the factor of preeclampsia development prognosis.
