国际生殖健康/计划生育杂志 ›› 2023, Vol. 42 ›› Issue (2): 102-106.doi: 10.12280/gjszjk.20220221

• 论著 • 上一篇    下一篇

冻融胚胎行植入前遗传学检测的安全性与临床结局分析

张笑兰, 武恂, 曹善仁, 张军强, 凌秀凤, 李秀玲()   

  1. 210004 南京医科大学附属妇产医院生殖医学中心
  • 收稿日期:2022-04-26 出版日期:2023-03-15 发布日期:2023-03-21
  • 通讯作者: 李秀玲 E-mail:njlxl@qq.com
  • 基金资助:
    国家自然科学基金(81871210)

The Safety and Clinical Pregnancy Outcome of Preimplantation Genetic Testing in Frozen-Thawed Embryos

ZHANG Xiao-lan, WU Xun, CAO Shan-ren, ZHANG Jun-qiang, LING Xiu-feng, LI Xiu-ling()   

  1. Center of Reproductive Medicine, Women’s Hospital of Nanjing Medical University, Nanjing 210004, China
  • Received:2022-04-26 Published:2023-03-15 Online:2023-03-21
  • Contact: LI Xiu-ling E-mail:njlxl@qq.com

摘要: 目的: 探讨冻融胚胎行植入前遗传学检测(preimplantation genetic testing,PGT)的安全性及对临床结局的影响。方法: 收集2016年8月—2021年12月南京医科大学附属妇产医院生殖医学中心(本中心)对冻融胚胎行PGT的95个周期(冻融PGT组,截至2021年12月31日已移植37个周期)和同期常规新鲜胚胎行PGT的145个周期(新鲜PGT组,已移植95个周期)的临床资料,比较2组PGT的结果以及2组已移植周期的临床妊娠结局。结果: ①新鲜PGT组145个周期共活检囊胚742枚,获得整倍体胚胎283枚;冻融PGT组95个周期共活检囊胚279枚,获得整倍体胚胎90枚。2组整倍体胚胎率比较差异无统计学意义(38.14% vs. 32.26%,P=0.082)。②新鲜PGT组与冻融PGT组已移植周期的胚胎种植率(56.84% vs. 54.05%)、临床妊娠率(56.84% vs. 54.05%)、流产率(9.26% vs. 15.00%)、活产率(51.58% vs. 45.95%)和早产率(8.16% vs. 11.76%)比较差异均无统计学意义(均P>0.05)。结论: 冻融胚胎行PGT的检测结果和妊娠结局与新鲜胚胎行PGT相似,可作为特殊情况下的一种较安全的处理方式。

关键词: 胚胎,哺乳动物, 体外受精, 活组织检查, 植入前诊断, 妊娠结局

Abstract:

Objective: To explore the safety of preimplantation genetic testing (PGT) in frozen-thawed embryos and its effects on the clinical pregnancy outcome. Methods: From August 2016 to December 2021, a total of 95 clinical cases of PGT in frozen-thawed embryos were collected from the Center of Reproductive Medicine, Women’s Hospital of Nanjing Medical University (referred to as the frozen-thawed embryos PGT group, 37 cases had been transplanted up to December 31,2021) and 145 clinical cases of PGT in fresh embryos during the same period (referred to as the fresh-embryos PGT group, 95 cases had been transplanted). The differences in PGT results and the clinical pregnancy outcome of transplanted cases were analyzed between the two groups. Results: ① In 145 cases of the fresh-embryos PGT group, 742 blastocysts were biopsied and 283 euploid embryos were obtained; In 95 cases of the frozen-thawed embryos PGT group, 279 blastocysts were biopsied and 90 euploid embryos were obtained. There was no significant difference in the euploid embryos rates between the two groups (38.14% vs. 32.26%, P=0.082). ② There were no significant differences in the embryo implantation rate(56.84% vs. 54.05%), clinical pregnancy rate (56.84% vs. 54.05%), miscarriage rate (9.26% vs. 15.00%), live birth rate (51.58% vs. 45.95%) and the early birth rate (8.16% vs. 11.76%) between the two groups (all P>0.05). Conclusions: PGT in the frozen-thawed embryos is consistent with PGT in the fresh embryos about diagnostic result and pregnancy outcome. Therefore, PGT in the frozen-thawed embryos can be used as a relatively safe treatment under some special circumstances.

Key words: Embryo, mammalian, Fertilization in vitro, Biopsy, Preimplantation diagnosis, Pregnancy outcome