To assess the relationship between pronuclear scoring and day-3 embryo quality and pregnancy outcome and to determine the Clinical value of pronuclear stage scoring system in human in vitro fertilization-embryo transf...To assess the relationship between pronuclear scoring and day-3 embryo quality and pregnancy outcome and to determine the Clinical value of pronuclear stage scoring system in human in vitro fertilization-embryo transfer （IVF-ET） program, a pronuclear scoring system was used to score zygotes 16-20 h after insemination during conventional IVF or intracytoplasmic sperm injection （ICSI）. The embryos were classified into groups Z1, Z2, Z3 and Z4, Comparisons were made of the rates of arrested embryos and excellent embryos on day 3. Comparisons of pregnancy outcome were made only in those patients in whom cohorts of similarly Z-scored embryos were transferred, The results showed that there were less arrested embryos and more excellent embryos on day 3 in groups Z1 and Z2 than those in group Z3 and Z4, More embryos arrested and less excellent embryos developed in group Z4 than group Z3. The clinical pregnancy rates resulting from the transfer of single pronuclear score homologous embryo types were similar among groups Z1, Z2 and Z3. Implantation rates of group Z1 were higher （P〈0.05） than that of group Z3, These findings suggests that pronuclear scoring can predict developmental ability on day 3 and implantation potential. A evaluation that combines the Z-score and day 3 embryo morphology is useful in the determination of the most viable embryos and the number of embryos for transfer.展开更多
目的分析高龄不孕患者接受辅助生殖技术(ART)行冻融胚胎移植(FET)周期的胚胎数目和质量与早期妊娠丢失率的关系。方法选择2015年1月~2018年12月于南方医科大学南方医院接受ART并行FET的≥36岁的不孕症患者共2622例,对妊娠的976例患者根...目的分析高龄不孕患者接受辅助生殖技术(ART)行冻融胚胎移植(FET)周期的胚胎数目和质量与早期妊娠丢失率的关系。方法选择2015年1月~2018年12月于南方医科大学南方医院接受ART并行FET的≥36岁的不孕症患者共2622例,对妊娠的976例患者根据后续妊娠情况分为早期妊娠丢失组和持续妊娠组,分析早期妊娠丢失率与年龄、移植胚胎数、胚胎质量等的关系;根据患者年龄分为:36~37岁组、38~39岁组、40岁组、41岁组、42岁组、43岁组、44岁组和45~48岁组,进一步分析不同年龄段早期妊娠丢失率与胚胎移植数及胚胎质量的关系。结果本研究共纳入2622例FET周期,其中临床妊娠976例,临床妊娠率37.2%(976/2622),活产663例,活产率25.3%。临床妊娠患者中早期妊娠丢失241例,继续妊娠735例,早期妊娠丢失率24.7%(241/976)。各组患者临床妊娠率及活产率随年龄增长而降低,早期妊娠丢失率随年龄增长而显著升高(P<0.001);早期妊娠丢失组患者FET年龄及取卵年龄均高于持续妊娠组,移植D3胚胎数高于持续妊娠组(0.97 vs 0.81,P=0.030),着床胚胎数低于持续妊娠组(1.09 vs 1.25,P<0.001);各年龄组早期妊娠丢失率与移植胚胎数和胚胎质量没有显著关系(P>0.05)。结论高龄不孕女性患者冻融移植胚胎周期的早期妊娠丢失率随年龄增长而升高,年龄是导致早期妊娠丢失的无法补救的危险因素,故应对高龄不孕女性尽早实施ART助孕治疗。为降低早期胚胎丢失率,同时权衡多胎妊娠的风险,根据胚胎质量谨慎决定胚胎移植数。展开更多
文摘To assess the relationship between pronuclear scoring and day-3 embryo quality and pregnancy outcome and to determine the Clinical value of pronuclear stage scoring system in human in vitro fertilization-embryo transfer （IVF-ET） program, a pronuclear scoring system was used to score zygotes 16-20 h after insemination during conventional IVF or intracytoplasmic sperm injection （ICSI）. The embryos were classified into groups Z1, Z2, Z3 and Z4, Comparisons were made of the rates of arrested embryos and excellent embryos on day 3. Comparisons of pregnancy outcome were made only in those patients in whom cohorts of similarly Z-scored embryos were transferred, The results showed that there were less arrested embryos and more excellent embryos on day 3 in groups Z1 and Z2 than those in group Z3 and Z4, More embryos arrested and less excellent embryos developed in group Z4 than group Z3. The clinical pregnancy rates resulting from the transfer of single pronuclear score homologous embryo types were similar among groups Z1, Z2 and Z3. Implantation rates of group Z1 were higher （P〈0.05） than that of group Z3, These findings suggests that pronuclear scoring can predict developmental ability on day 3 and implantation potential. A evaluation that combines the Z-score and day 3 embryo morphology is useful in the determination of the most viable embryos and the number of embryos for transfer.
文摘目的分析高龄不孕患者接受辅助生殖技术(ART)行冻融胚胎移植(FET)周期的胚胎数目和质量与早期妊娠丢失率的关系。方法选择2015年1月~2018年12月于南方医科大学南方医院接受ART并行FET的≥36岁的不孕症患者共2622例,对妊娠的976例患者根据后续妊娠情况分为早期妊娠丢失组和持续妊娠组,分析早期妊娠丢失率与年龄、移植胚胎数、胚胎质量等的关系;根据患者年龄分为:36~37岁组、38~39岁组、40岁组、41岁组、42岁组、43岁组、44岁组和45~48岁组,进一步分析不同年龄段早期妊娠丢失率与胚胎移植数及胚胎质量的关系。结果本研究共纳入2622例FET周期,其中临床妊娠976例,临床妊娠率37.2%(976/2622),活产663例,活产率25.3%。临床妊娠患者中早期妊娠丢失241例,继续妊娠735例,早期妊娠丢失率24.7%(241/976)。各组患者临床妊娠率及活产率随年龄增长而降低,早期妊娠丢失率随年龄增长而显著升高(P<0.001);早期妊娠丢失组患者FET年龄及取卵年龄均高于持续妊娠组,移植D3胚胎数高于持续妊娠组(0.97 vs 0.81,P=0.030),着床胚胎数低于持续妊娠组(1.09 vs 1.25,P<0.001);各年龄组早期妊娠丢失率与移植胚胎数和胚胎质量没有显著关系(P>0.05)。结论高龄不孕女性患者冻融移植胚胎周期的早期妊娠丢失率随年龄增长而升高,年龄是导致早期妊娠丢失的无法补救的危险因素,故应对高龄不孕女性尽早实施ART助孕治疗。为降低早期胚胎丢失率,同时权衡多胎妊娠的风险,根据胚胎质量谨慎决定胚胎移植数。
