INFLUENCE OF BLOOD FLOW IN VEINS OF LOWER LIMBS ON THE HEMODYNAMIC PROCESSES IN THE UTERO-PLACENTAL-FETAL COMPLEX AT THE VARIOUS STEREOFUNCTIONAL ORGANIZATION OF THE MOTHER-PLACENTA-FETUS SYSTEM
We studied the features of the blood flow in the venous system of the lower limbs at the physiological and complicated pregnancy, depending on the nature of the placental lateralization, and revealed its influence on the formation of hemodynamic disturbances in the utero-placental-fetal complex in women with placental insufficiency. We revealed hemodynamic predictors of chronic venous insufficiency in pregnant women taking into account the specifics of stereo-functional organization of "mother-placenta-fetus" system. Progressive vasodilatation of lower extremities is registered in the dynamics of physiological and complicated pregnancies prevailing in the right superficial femoral vein and is manifested in an increase of vessel diameter and reducing blood flow velocity. These changes were more pronounced in women with placental insufficiency. It proved that the dysfunction of the valve apparatus of the lower extremities depends on the lateralization of the placenta: unilateral (ipsilateral in relation to the placenta) defeat of valve apparatus was revealed in case of placental location in right side, while bilateral changes of vein valves were registered in case of left located and ambilateral placenta.