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目的:探讨影响冻融胚胎移植(FET)妊娠率的相关因素。方法:对81个冻融胚胎移植周期的临床资料进行回顾性分析。结果:在81个冻融胚胎移植周期中,冻胚复苏成活率81.77%,临床妊娠率34.57%。采用3种方法准备子宫内膜,妊娠率无显著差异。妊娠组与未妊娠组比较,移植同步优质胚胎有显著差异(P<0.01),而患者年龄、不孕年限、胚胎保存期、冻前胚胎数、冻融胚胎存活率、移植优质胚胎数无显著差异(P>0.05)。结论:胚胎形态及生长速度和子宫内膜厚度及形态是影响冷冻胚胎移植妊娠率的重要因素。
Objective: To explore the factors affecting the pregnancy rate of frozen-thawed embryo transfer (FET). Methods: The clinical data of 81 frozen-thawed embryo transfer cycles were retrospectively analyzed. Results: In the 81 frozen-thawed embryo transfer cycles, the survival rate of frozen embryo recovery was 81.77% and the clinical pregnancy rate was 34.57%. There are no significant differences in pregnancy rates when using 3 methods to prepare endometrium. There were significant differences in grafted synchronous high quality embryos between pregnancy group and non-pregnant group (P <0.01), but there was no significant difference in patient’s age, duration of infertility, embryo preservation, number of embryos before freezing, survival rate of frozen-thawed embryo, Difference (P> 0.05). Conclusion: Embryo morphology and growth rate and endometrial thickness and morphology are important factors affecting the pregnancy rate of frozen embryo transfer.