Prevention of twin pregnancy after in-vitro fertilization or intracytoplasmic sperm injection based on strict embryo criteria: a prospective randomized clinical trial
Prevention of twin pregnancy after in-vitro fertilization or intracytoplasmic sperm injection based on strict embryo criteria: a prospective randomized clinical trial
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DOI：
10.1093/humrep/14.10.2581
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发表时间：
1999-10-01
影响因子：
6.1
通讯作者：
Valkenburg, M
中科院分区：
文献类型：
--
作者：
Gerris, J;De Neubourg, D;Valkenburg, M
对体外受精或卵胞浆内单精子注射(IVF/ICSI)后的单胚胎移植和双胚胎移植进行了前瞻性随机研究。首先，通过回顾分析双胚胎移植后产生持续双胞胎的胚胎来描述优质胚胎的特征。优质胚胎的特征是在受精后第2天有4个或5个卵裂球，在第3天至少有7个卵裂球，没有多核的卵裂球和
A prospective randomized study comparing single embryo transfer with double embryo transfer after in-vitro fertilization or intracytoplasmic sperm injection (IVF/ICSI) was carried out. First, top quality embryo characteristics were delineated by retrospectively analysing embryos resulting in ongoing twins after double embryo transfer,A top quality embryo was characterized by the presence of 4 or 5 blastomeres at day 2 and at least 7 blastomeres on day 3 after insemination, the absence of multinucleated blastomeres and