国际生殖健康/计划生育杂志 ›› 2023, Vol. 42 ›› Issue (1): 1-6.doi: 10.12280/gjszjk.20220344

• 论著 •    下一篇

植入前遗传学检测后冻融胚胎移植周期妊娠结局的影响因素

胡瑞, 魏才娟, 贾冬玲, 毛斌, 马晓玲, 杨媛()   

  1. 730000 兰州大学(胡瑞,杨媛);兰州大学第一临床医学院(胡瑞);兰州大学第一医院(魏才娟,贾冬玲,毛斌,马晓玲,杨媛);甘肃省生殖与胚胎重点实验室(胡瑞,贾冬玲,毛斌,马晓玲,杨媛)
  • 收稿日期:2022-07-15 出版日期:2023-01-15 发布日期:2023-02-03
  • 通讯作者: 杨媛 E-mail:yangyuan0302@163.com
  • 基金资助:
    国家自然科学基金地区项目(81960275);甘肃省重点研发项目(21YF5FA119);兰州市科技局人才项目(2021-RC-133)

Influence Factors of Pregnancy Outcomes in Frozen-Thawed Embryo Transfer Cycles Following Preimplantation Genetic Testing

HU Rui, WEI Cai-juan, JIA Dong-ling, MAO Bin, MA Xiao-ling, YANG Yuan()   

  1. Lanzhou University, Lanzhou 730000, China (HU Rui, YANG Yuan); The First Clinical Medical College of Lanzhou University, Lanzhou 730000, China (HU Rui); The First Hospital of Lanzhou University, Lanzhou 730000, China (WEI Cai-juan, JIA Dong-ling, MAO Bin, MA Xiao-ling, YANG Yuan); Key Laboratory of Reproductive Medicine and Embryo of Gansu Province, Lanzhou 730000, China (HU Rui, JIA Dong-ling, MAO Bin, MA Xiao-ling, YANG Yuan)
  • Received:2022-07-15 Published:2023-01-15 Online:2023-02-03
  • Contact: YANG Yuan E-mail:yangyuan0302@163.com

摘要:

目的:分析经植入前遗传学检测(preimplantation genetic testing,PGT)后,冻融胚胎移植(frozen-thawed embryo transfer,FET)周期时3种常见子宫内膜准备方案对妊娠结局的影响及相关影响因素,指导PGT患者的助孕治疗。方法:回顾性分析2017年1月—2022年1月于兰州大学第一医院行PGT助孕的195例患者共219个FET周期的临床资料及妊娠结局,包括非整倍体筛查检测(PGT for aneuploidies,PGT-A)周期、单基因疾病检测(PGT for monogenic,PGT-M)周期和染色体重排检测(PGT for structural rearrangements,PGT-SR)周期。按照内膜准备方案分为自然周期组(natural cycle,NC组,56个)、促性腺激素释放激素激动剂(gonadotropin releasing hormone agonist,GnRHa)联合激素替代疗法(hormone replacement therapy,HRT)周期组(GnRHa+HRT组,102个)及单纯HRT周期组(61个)。比较3组的一般临床资料及妊娠结局,并采用Logistic多因素回归分析活产的影响因素。结果:NC组、GnRHa+HRT组和HRT组均可达到较高的临床妊娠率(64.29%,80.39%,73.77%,P>0.05)和活产率(83.33%,85.37%,84.44%,P>0.05)。但3组采用的PGT方法差异有统计学意义(P=0.002),NC组行PGT-SR的患者高于另两组(P<0.05)。且NC组异位妊娠率高于GnRHa+HRT组(P<0.05)。活产组与非活产组的体质量指数、获卵数、可移植胚胎数及优质囊胚数差异有统计学意义(P<0.05),除上述4个指标外,将2组比较P<0.2的不良孕产史和总囊胚数一起纳入Logistic多因素回归分析,发现仅优质囊胚数对妊娠结局有影响,优质囊胚数>2个为PGT患者活产结局的保护因素(OR=0.480,P<0.05)。结论:3种FET内膜准备方案的临床妊娠率和活产率相似,但NC组异位妊娠率较高。应该注意体质量指数、获卵数、可移植胚胎数及优质囊胚数可能共同影响PGT患者的活产结局,尤其要关注优质囊胚数,以提高PGT患者的活产率。

关键词: 植入前诊断, 全基因组测序, 生殖技术,辅助, 活产, 冻融胚胎移植

Abstract:

Objective: To analyze the influence of three common schemes of endometrial preparation on the pregnancy outcome and related influencing factors during the frozen-thawed embryo transfer (FET) cycle after preimplantation genetic testing (PGT), so as to provide a reference for the assisted reproduction treatment of PGT patients. Methods: The clinical data and pregnancy outcomes of 195 patients with 219 cycles of FET assisted by PGT from January 2017 to January 2022 at the First Clinical Medical College of Lanzhou University were analyzed retrospectively, including the cycles of PGT for aneuploidies (PGT-A), PGT for monogenetic (PGT-M), and PGT for structural rearrangements (PGT-SR). According to the endometrial preparation schemes, these cycles were divided into three groups: the natural cycle group (NC group, 56), the gonadotropin releasing hormone agonist (GnRHa) combined with hormone replacement therapy (HRT) cycle group (GnRHa+HRT group, 102) and the simple HRT cycle group (61). The general clinical data and pregnancy outcomes of the three groups were compared, and the influencing factors of live birth were analyzed by logistic regression. Results: The NC group, GnRHa+HRT group and HRT group all achieved higher clinical pregnancy rate (64.29%, 80.39%, 73.77%, P>0.05) and live birth rate (83.33%, 85.37%, 84.44%, P>0.05). The difference of PGT methods used in the three groups was statistically significant (P=0.002). The ratio of patients receiving PGT-SR in the NC group was higher than that in GnRHa+HRT group (P<0.05). The ectopic pregnancy rate in the NC group was higher than that in the other two groups (P<0.05). There were significant differences in the BMI, number of oocytes retrieved, number of transferable embryos and number of high-quality blastocysts between the live birth group and the non live birth group (P<0.05). In addition to the above four factors, the adverse pregnancy history and total number of blastocysts (P<0.2) of the two groups were included in the logistic regression analysis. It was found that only the number of high-quality blastocysts had an impact on the pregnancy outcomes, and that the number of high-quality blastocysts >2 was a protective factor for the outcome of live birth of PGT patients (OR=0.480, P<0.05). Conclusions: The clinical pregnancy rate and live birth rate of three FET endometrial preparation protocols are similar, but the ectopic pregnancy rate in the NC group is higher. It should be noted that the BMI, number of oocytes retrieved, number of transferable embryos and number of high-quality blastocysts may jointly affect the outcome of live birth of PGT patients, especially the number of high-quality blastocysts, so as to improve the live birth rate of PGT patients.

Key words: Preimplantation diagnosis, Whole genome sequencing, Reproductive techniques, assisted, Live birth, Frozen-thawed embryo transfer