CAJ | 학술논문

目的评估正常双胎妊娠在早孕期发育不均衡性的影响因素.方法对86例双胎妊娠,计算双胎间头臀长(CRL)、颈项透明层厚度(NT)的差异,评价其与绒毛膜性、孕周、受孕方式、胎儿性别的关系.结果双胎妊娠胎儿间CRL差值平均为(3.03±2.70)mm,NT差值平均为(0.27±0.20) mm.在单绒毛膜囊双胎及双绒毛膜囊双胎组、不同受孕方式组、不同性别组上述指标差异无统计学意义；上述指标与孕周均无明显相关性.结论早孕期双胎间发育的不均衡性与绒毛膜性、孕周、受孕方式、胎儿性别无关.
목적 평고정상쌍태임신재조잉기발육불균형성적영향인소.방법 대86례쌍태임신,계산쌍태간두둔장(CRL)、경항투명층후도(NT)적차이,평개기여융모막성、잉주、수잉방식、태인성별적관계.결과 쌍태임신태인간CRL차치평균위(3.03±2.70)mm,NT차치평균위(0.27±0.20) mm.재단융모막낭쌍태급쌍융모막낭쌍태조、불동수잉방식조、불동성별조상술지표차이무통계학의의；상술지표여잉주균무명현상관성.결론 조잉기쌍태간발육적불균형성여융모막성、잉주、수잉방식、태인성별무관.
Objective To investigate the distribution of fetal discrepancy in twins during the first trimester,and its influencing factor.Methods This was a prospective analysis of twin pregnancies that underwent 11 +0-13 +6 week scan at a tertiary hospital from Sep 2008 to May 2012.Differences in crownrump length (CRL),nuchal translucency (NT) were calculated for each twin pair and their distribution was analyzed according to chorionicity,gestational age,mode of conception,and the gender.Results A total of 86 twin pregnancies were included,20(23.3％) were monochorionic and 66 (76.7％) were dichorionic twins.The average discrepancy in CRLs and NTs was (3.03 ± 2.70) mm and (0.27 ± 0.20) mm respectively.There was no significant different in the CRL and NT discrepancy between monochorionic and dichorionic twin pairs.The overall CRL and NT discrepancy were not change significantly with gestational age,mode of reception or gender.Conclusions Discrepancy of CRL,NT from 11+0 to 13+6 weeks of gestation are not significantly correlated with chorionicity,gestational age,mode of conception and fetal gender.