A multicentered and retrospective study on the timing for delivery in twin pregnancies
- VernacularTitle:双胎妊娠分娩时机选择的多中心回顾性分析
- Author:
Yu XIONG
;
Xiaotian LI
;
Weiwei CHENG
- Publication Type:Journal Article
- Keywords:
Pregnancy,multiple;
Pregnancy outcome;
Infant, small for gestational age;
Retrospective studies
- From:
Chinese Journal of Perinatal Medicine
1998;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the timing for delivery in twin pregnancies to improve the perinatal outcome. Methods A multicentered and retrospective study was conducted on 655 women with twin pregnancies in 6 hospitals of Shanghai from Jan 1993 to Oct 2003. The average birthweight(BW) for both twins in different gestation, the incidence of small for gestational age (SGA) and severe neonatal asphyxia were analyzed. Results For the smaller babies in all twins, the 50 percentile of the birth weight was far behind the singletons throughout the pregnancy. But for the larger babies, it was similar to the singletons if delivered before 33 weeks, lighter than the singletons if after 33 weeks and remarkable difference was shown beyond 39 weeks. The largest BW of the larger babies was 3073 g presented at 39 weeks, while 2670 g for the smaller babies at 40 weeks after which the average BW was decreased. It reached 2555 g and 2303 g at 41 weeks for the larger and smaller babies, respectively (P
