摘要

<正>胚胎着床是胚胎经过定位、黏附和侵入种植于子宫内膜的过程,在人体外受精/卵胞浆内单精子注射-胚胎移植(in vitro fertilization/intracytoplasmic sperm injection-embryo transfer,IVF/ICSI-ET)周期中胚胎着床率约30%,反复着床失败(recurrent implantation failure,RIF)的发生率为12%~34%。胚胎因素、子宫因素、母体免疫异常等原