Journal of International Obstetrics and Gynecology ›› 2021, Vol. 48 ›› Issue (5): 517-520.doi: 10.12280/gjfckx.20201244

• Obstetric Physiology & Obstetric Disease: Original Article • Previous Articles     Next Articles

Perinatal Outcomes of Single Intrauterine Fetal Death in Dichorionic Twins

WANG Lian-lian, YANG Ling, ZHOU Yan, Gu Ning, DAI Yi-min()   

  1. Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
  • Received:2020-12-29 Published:2021-10-15 Online:2021-10-27
  • Contact: DAI Yi-min E-mail:nj_daiyimin@126.com

Abstract:

Objective: Compare the perinatal outcomes of selective feticide and spontaneous single intrauterine fetal death (SIUFD) in dichorionic twins, analyze the perinatal outcomes of feticide at different gestational ages, and explore the clinical application of selective feticide. Methods: Fifty-five dichorionic twins pregnancies that underwent selective feticide or spontaneous SIUFD to reduce the twins to single birth in the Obstetrics Department of Nanjing Drum Tower Hospital from January 2011 to December 2019 were retrospectively reviewed. The patients were grouped into selective feticide group (N=39) and spontaneous SIUFD group (N=16) according to reasons of fetal reduction, analysis and compare the perinatal outcome retrospectively. Results: The total pregnancy loss rate in 55 cases was 9.1% (5 miscarriages), and the live birth rate was 90.9%. The gestational age of fetal reduction-death in the selective feticide group was significantly lower than that in the spontaneous SIUFD group, the overall termination of pregnancy gestational age and live birth rate in the selective feticide group were significantly higher than that of the spontaneous SIUFD group, and the cesarean section rate, miscarriage rate were lower than the spontaneous SIUFD group (P<0.05). There was no significant difference in preterm birth rate, full-term birth rate, birth weight, birth weight percentile, healthy discharge rate of newborns, and NICU rate of newborns between the two groups (both P>0.05). According to the gestational age at which selective feticide, there were 24 cases of gestational reduction of ≤20 weeks, and 15 cases of gestational reduction of >20 weeks. There was no statistically significant difference in the birth weight percentile between the two groups (P>0.05), but the preterm birth rate was lower, the full-term birth rate of gestational weeks was higher, and the birth weight of newborns was larger of ≤20 weeks (both P<0.05). Conclusions: Twin pregnancy will cause adverse effects on the perinatal outcomes of surviving children after SIUFD. For those with indications of fetal reduction, selective feticide in early pregnancy may be beneficial for the perinatal outcome in multiple pregnancy, improve the live birth rate of surviving children.

Key words: Pregnancy,twin, Selective feticide, Single intrauterine fetal death, Pregnancy outcome, Fetal death