Ultrasound Doppler fetal heart rate detection algorithm analyzes the correlation between twin selective fetal growth restriction and cord blood SFass fasL level.

Qiaohong Cao,Cong Ma,Junbiao Zhu

doi:10.12669/pjms.37.6-wit.4881

Qiaohong Cao, Cong Ma + Show 1 more

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https://doi.org/10.12669/pjms.37.6-wit.4881

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Abstract

Objective:The paper uses ultrasound Doppler fetal heart rate detection algorithm to explore the placental characteristics of monochorionic twin pregnancy with selective fetal growth restriction, and discuss the correlation between selective fetal growth restriction and cord blood SFass FasL level.Methods:From June 1, 2019 to June 1, 2020 in our hospital, 23 cases of selective fetal growth restriction and 32 cases of uncomplicated cases were included in the monochorionic twin pregnancies whose pregnancy was terminated in our hospital (control group) research. Perfusion was completed within 24 hours after delivery of the placenta. The umbilical arteries and veins of the two fetuses were respectively perfused with four different colors of pigments. The type of anastomoses was judged according to the color of the blood vessels on the placenta surface.Results:The selective fetal growth restriction group was higher than the control group. In the selective fetal growth restriction group and the control group, the number of anastomoses of the placental superficial arterial artery, arterial vein and venous vein were 1.0 and 1.0, 3.0 and 2.0, 0.0 and 0.0, respectively; the placental superficial arterial artery, arterial vein and venous vein. The total diameters of the anastomosed blood vessels were 2.7 and 2.2, 4.0 and 3.4, 0.0 and 0.0 mm, respectively; the total number of superficial placental anastomosed blood vessels in the selective fetal growth restriction group and the control group were 3.5 and 3.5, respectively.The total diameters were 6.9 and 6.9, respectively 5.9mm.Conclusion:Uneven placental share and non-central attachment of the umbilical cord may be risk factors for selective fetal growth restriction in monochorionic twin pregnancy.

Highlights

Selective fetal growth restriction is one of the complications of monochorionic twin pregnancy, and its incidence is 10%~15%
Twenty three cases of Selective fetal growth restriction (sFGR) and 32 cases of uncomplicated patients were included for the study Their ages were between 23-45 years. sFGR refers to a single-chorionic twin pregnancy that is small for gestational age (SGA), that is, the ultrasound estimated fetal weight is below the 10th percentile of the corresponding gestational week, except for cases where both fetuses are SGA.[1]
Because the Doppler detected by the ultrasound Doppler fetal heart rate detector often contains a large amount of messy, large variability, and uneven noise, it will cause a large degree of interference to the calculation of fetal heart rate.[8,9]

Summary

Introduction

Selective fetal growth restriction (sFGR) is one of the complications of monochorionic twin pregnancy, and its incidence is 10%~15%. The incidence of sFGR is related to factors such as the share of twin placenta and the location of umbilical cord. Foreign countries implement intrauterine interventions on placental structure for sFGR, but in China still mainly adopts expectant treatment or selective fetal reduction surgery, and there are few studies on sFGR placental structure. Superficial vascular perfusion was performed on the placenta of. Pak J Med Sci September 2021 (Speical Issue Online) Vol 37 No 6 www.pjms.org.pk 1672 monochorionic twin pregnancy to explore the placental characteristics of sFGR

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