Abstract
Background: The aim of the study was to evaluate the diagnostic prediction of the Doppler waveform analysis during active labor for adverse perinatal outcome in a group at significant risk of intrapartum hypoxia.Materials and methods: The study population consisted of 33 pregnant women at high‐risk and ultrasonographic diagnosis of IUGR between 28 and 35 weeks of gestation. On the basis of the flow velocity changes in the fetal vessels during pregnancy, patients were divided into two study groups A, with physiological Doppler waveforms (12 women) and B, with pathological Doppler waveforms (21 women). The percentage of the changes of the index values during active labor were correlated with pH values of the blood from the umbilical artery.Results: In group A, no statistically significant correlation was found. In group B, following was established: high negative correlation between the changes of the index values and pH values of the blood from the umbilical artery: dPAU 24%, r = − 0.531, t = 2.179, P < 0.05. dPIAFD 26%, r = − 0.655, t = 3.0, P < 0.05; dPIACM 10%, r = − 0. 699, t = 3.1, P < 0.01.Conclusions: The study revealed a significant correlation between the changes of index values of the Doppler waveform analysis during active labor and pH values of the blood from the umbilical artery in the process of intrapartum aggravation of already antepartum from chronic hypoxemia suffering fetuses.
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