Value of color Doppler ultrasound combined with fetal heart rate monitoring in diagnosis of fetal intrauterine hypoxia

Abstract

Objective To investigate the value of color Doppler ultrasound combined with fetal heart rate monitoring in diagnosis of fetal intrauterine hypoxia. Methods A total of 82 pregnant women who underwent color Doppler ultrasound examination and delivered during November 2012 to October 2017 in the Third People’s Hospital of Datong were selected, and their clinical date were investigated and analyzed retrospectively. Thirty-eight pregnant women whose blood flow velocity of umbilical artery S/D (the ratio of peak blood flow velocity of umbilical artery to end-diastolic blood flow velocity during systolic phase) ≥3 were selected as experiment group, and 44 pregnant women with S/D<3 were selected as control group. The relationship between fetal umbilical cord blood flow, fetal heart rate monitoring, neonatal Apgar score, monitoring results and fetal intrauterine hypoxia was compared between the two groups. Results The values of resistance index, S/D and pulsation index in umbilical blood flow of experiment group were higher than those of control group (P<0.05). The abnormal fetal heart rate of experiment group was significantly higher than that of control group (P<0.05). The Apgar score of 52.63% patients of experiment group was in the normal range, and Apgar score of 47.37% patients was in the abnormal range. the Apgar score of 97.73% patients of control group was in the normal range and Apgar score of 2.27% patients was in the abnormal range (P<0.05). The pregnant women whose fetal heart rate was abnormal and the S/D≥3 had the highest fetal hypoxia incidence, followed by the pregnant women whose fetal heart rate was normal and the S/D≥3 and pregnant women whose fetal heart rate was abnormal and the S/D<3, sequentially. The fetal hypoxia incidence of pregnant women whose fetal heart rate was normal and the S/D<3 was the lowest. Conclusions Color Doppler ultrasound combined with fetal heart monitoring has important reference value in the diagnosis of fetal intrauterine hypoxia, and it is worthy of clinical application. Key words: Color Doppler ultrasound; Umbilical blood flow; Fetal heart monitoring; Intrauterine anoxia