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超声影像学在双胎输血综合征的预测和产前诊断中的应用

Published in Zhonghua weichan yixue zazhi • Mar 16, 2014
NobleIDNI4P29W43R32S26
Authors:
王霞
,
卢瑾文
,
张元珍

Abstract

双胎输血综合征(twin-twin transfusion syndrome,TTTS)是双胎妊娠的常见并发症,绝大多数发生于单卵双胎中的单绒毛膜双羊膜囊双胎(monochorionic diamniotic,MCDA),在单绒毛膜单羊膜囊双胎中罕见[1].单卵双胎的发生率占双胎妊娠的1/3,MCDA占单卵双胎的3/4,而TTTS发生率占MCDA的8%~10%[2-4].体外受精(in vitro fertilization,IVF)使单卵双胎的发生率升高2~12倍.IVF形成的MCDA也会发生TTTS[5].如果不予治疗,TTTS的胎儿死亡率可达80%~100%[6-7],存活儿致残率为15...

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