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双重玻璃化和加热不会影响单个未经活检的胚胎细胞移植后活产生的机会
S Makieva1, M K Sachs1, M Xie1
1Department of Reproductive Endocrinology, University Hospital Zurich, Zurich, Switzerland.
Human reproduction open
|October 16, 2023
概括
胚胎的双重玻璃化加热 (DVW),包括两轮冷和解,与单次玻璃化加热 (SVW) 相比,没有影响活产率. 这一发现为辅助生殖技术 (ART) 实践提供了保证,特别是在需要DVW的地方.
科学领域:
- 生殖医学和辅助生殖技术 (ART)
- 胚胎学和冷生物学
- 在体外受精 (IVF) 和内细胞质精子注射 (ICSI)
背景情况:
- 双玻璃化加热 (DVW) 在ART中越来越多地用于剩余胚胎,植入前遗传测试 (PGT) 再测试,以及导航国家胚胎培养政策.
- 目前关于DVW对ART结果的影响的证据有限,缺乏可靠的验证.
- 这项研究研究了DVW,其中最初的玻璃化发生在胚芽阶段,第二次发生在胚囊阶段,没有先前的活检.
研究的目的:
- 评估胚胎的双玻璃化和解是否会影响单个胚胎细胞移植后的活产率.
- 为了比较双玻璃化加热 (DVW) 和单玻璃化加热 (SVW) 程序之间的临床怀孕率和活产率.
主要方法:
- 一个回顾性观察分析包括407个单个胚胎细胞转移.
- 胚胎是单一玻璃化加热 (SVW,n=310) 或双玻璃化加热 (DVW,n=97) 的.
- 大型胚胎移植手术包括玻璃化卵巢,加热,重新玻璃化卵巢,并在胚胎移植 (ET) 日进行加热.
主要成果:
- 临床怀孕率 (CPR) 相似:DVW为44.3%,SVW为42.3% (P=0.719).
- 生产率 (LBR) 也很相似:DVW的30.9%,SVW的28.7% (P=0.675).
- 在DVW (27.9%) 和SVW (32.1%) 组之间,流产率没有显著差异 (P=0.765).
结论:
- 胚胎的双重玻璃化加热 (DVW),从胚芽到胚囊阶段,产生与单次玻璃化加热 (SVW) 相比的活产率.
- 这些发现为接受ART治疗的患者提供了关键的咨询数据,并使限制性胚胎培养政策的地区的临床医生放心.
- 该研究的回顾性质需要谨慎,特别是当将研究结果应用于不同胚胎发育阶段的DVW时.
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