Value of ultrasonography in predicting the birth weight discordance of twin pregnancy
10.3969/j.issn.1674-8115.2017.04.015
- VernacularTitle:超声在预测双胎妊娠新生儿出生体质量差异中的价值
- Author:
Jinling SUN
;
Jianmei NIU
;
Jiaqi GAO
;
Shuping Lü
;
Yanlin WANG
- Keywords:
ultrasound;
twin pregnancy;
estimated fetal weight discordance;
birth weight discordance;
dichorionic-diamniotic twin;
monochorionic-diamniotic twin
- From:
Journal of Shanghai Jiaotong University(Medical Science)
2017;37(4):500-505
- CountryChina
- Language:Chinese
-
Abstract:
Objective·To identify the relationship between the estimated fetal weight (EFW) discordance and birth weight (BW) discordance, and evaluate the accuracy of ultrasonography in predicting birth weight discordance (△BW) of twin pregnancy. Methods·The ultrasound was used to detect the growth of twins at different gestational weeks and the data were analyzed to compare the difference between EFW discordance (△EFW) and ?BW. Results·About 15.9 percent of twins (totally 277 cases) had severe △BW (△BW ≥20%) in our study, and the percentages of dichorionic-diamniotic twin (DCDA) and monochorionic-diamniotic twin (MCDA) were 68.2% and 31.8%, respectively (P>0.01). Compared with △EFW in other gestational weeks,△EFW last time before parturition was most consistent of △BW. Furthermore, the negative predictive value of MCDA was highest (94%) at 22-24 gestational weeks. Conclusion·Twin △BW was relatively better predicted by △EFW last time before parturition. Twin pregnancy without severe △EFW (△EFW<20%), especially MCDA with △EFW<20% at 22-24 weeks, had low probability of selective intrauterine growth restriction in the future.
