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目的探讨体外受精-胚胎移植(IVF-ET)冻融移植周期子宫内膜厚度对临床妊娠率的影响。方法将361个冻融移植周期按决定日子宫内膜厚度分为3组:1组:子宫内膜厚度≤7.0mm;2组:>7.0mm,且≤12.0mm;3组:>12.0mm,比较3组间临床妊娠率的差异。结果 1组与2组、3组比较,临床妊娠率显著降低(P﹤0.05)。结论子宫内膜厚度≤7.0mm影响冻融移植周期临床妊娠率。
Objective To investigate the effect of endometrial thickness during freeze-thaw cycles on in-vitro pregnancy rate in vitro fertilization-embryo transfer (IVF-ET). Methods 361 freeze-thaw cycles were divided into 3 groups according to the thickness of endometrium on day of decision: group 1: endometrial thickness≤7.0mm; group2:> 7.0mm, and≤12.0mm; group3:> 12.0mm, The differences in clinical pregnancy rates between the three groups were compared. Results Compared with group 2 and group 3, clinical pregnancy rate was significantly lower in group 1 (P <0.05). Conclusion Endometrial thickness ≤7.0mm affect the clinical pregnancy rate of frozen-thawed transplantation.