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已有研究显示胚胎培养时间延长至5d可形成囊胚,只移植(ET)两个囊胚妊娠率高且没有三胎危险。本研究的目的分析患者年龄及治疗周期数目对囊胚ET发生及种植的效应。 选自1994年1月～1995年12月所有培养5 d后行ET的夫妇,患者年龄22～47岁。按3年间隔分组以研究年龄对囊胚移植频率的影响。以促性腺激素释放激素激动剂(GnRHa)于治疗周期前的黄体晚期200 μg2次/d鼻内给药,超声显示卵巢抑制后,皮下
Studies have shown that embryo culture time can be extended to 5 days to form blastocysts, only two embryos (ET) pregnancy rate is high and there is no risk of three births. The purpose of this study was to analyze the effects of patient age and number of treatment cycles on the occurrence and implantation of blastocyst ET. Selected from January 1994 ~ December 1995 all 5 days after the training of ET couples, patients aged 22 to 47 years. Groups were grouped at 3-year intervals to study the effect of age on blastocyst transfer frequency. Gonadotropin-releasing hormone agonist (GnRHa) in the treatment period before the late luteal phase 200μg2 times / d intranasal administration, ultrasound showed ovarian suppression, subcutaneous