Further evidence that vitrification affect neonatal birthweight:findings after transfer of vitrified early cleavage embryos from a large cohort study

【作者】 刘素英； 匡延平； 吴煜； 冯云； 孙晓溪；

【机构】 上海集爱遗传与不育诊疗中心,复旦大学妇产科医院； 上海第九人民医院生殖中心； 上海国际和平妇幼保健院生殖中心； 上海瑞金医院生殖中心； 女性内分泌相关疾病重点实验室；

【摘要】 <正>ObjectiveTo investigate whether vitrification of cleavage embryo transfer affect neonatal birthweight.Methods 7452 of singletons and 4606 twins after vitrified,slow frozen and fresh embryo transfer from4 clinics during the period of January 2006 to January 2012 were analysed.Results Mean birthweight of singletons were higher in vitrified transfer.Mean birthweight of singleton for GA≥37 weeks in vitrified was higher更多还原