THE IMPORTANCE OF ULTRASOUND DOPPLEROGRAPHY IN PRE-ECLAMPSIA

Pre-eclampsia (PE) remains the leading cause of severe placental disorders, placental insufficiency, and hy­poxic lesions of the fetal central nervous system. Early detection of hemodynamic decompensation prevents intra­partum fetal death and disabling neurological outcomes. In this regard, the aim of the study is to investigate the characteristics of fetal cerebral blood flow in pregnancies complicated by pre-eclampsia of varying severity to opti­mize the management and timing of delivery. Based on a comprehensive analysis of the results of ultrasound and Doppler studies of pregnant women whose pregnancies were complicated by pre-eclampsia, it was established that the progression of pre-eclampsia correlates with a decrease in the pulsatility index (PI) of the middle cerebral artery (MCA) and a critical drop in the cerebroplacental ratio (CPR), reflecting the brain-sparing effect under hypoxic con­ditions. An algorithm has been developed that allows timely differentiation between the compensated stage of ad­aptation and critical decompensation. Thus, Doppler assessment of the cerebroplacental complex in pregnant women with PE is a highly accurate method for predicting perinatal outcomes and serves as a key criterion for choosing between prolongation of pregnancy and emergency delivery.