晚期孕产妇的PGT-A:怀孕的可能性增加?
M Valeria Paz1, Paula Hovanyecz1, Patricia Perfumo1
1Servicio de Medicina Reproductiva, Instituto Gamma - Catamarca, Rosario, Argentina.
JBRA assisted reproduction
|November 17, 2025
概括
对于接受辅助生殖治疗的40岁以上的女性来说,经过卵泡吸收的euploid胚胎移植后怀孕的机会显著下降. 这突显了为晚期生殖年龄患者提供咨询的挑战.
科学领域:
- 生殖内分泌学 生殖内分泌学
- 遗传学 是一个遗传学.
- 在体外受精过程中受精.
背景情况:
- 辅助生殖治疗 (ART) 涉及复杂的过程.
- 在胚胎选择过程中,对阳积体的植入前遗传检测 (PGT-A) 是至关重要的.
- 在ART的成功率与女性生殖年龄有很大差异.
研究的目的:
- 为了确定发育年龄较高的女性的卵泡吸收与euploid胚胎移植成功怀孕的概率.
- 开发一种临床工具,以改善ART中的患者咨询.
主要方法:
- 对从2016年1月到2023年3月的PGT-A周期进行分析.
- 患者分为以下年龄组的分层:<35,35-37,38-40和41+.
- 计算每次移植的胚胎细胞发育,euploidy率和持续怀孕率.
主要成果:
- 在使用幼胚胎时,每次移植的怀孕率没有显著差异 (p=0.61).
- 增加母亲年龄与每次PGT-A周期的胚胎细胞产量降低和euploidy率相关.
- 每个PGT-A吸入周期的怀孕概率从29% (<35年) 降至5% (41年以上).
结论:
- 对于41岁及以上的女性,每次卵泡吸收的怀孕概率仅为5%.
- 对于接受ART的老年女性来说,准确的患者咨询是具有挑战性的,即使是PGT-A.
- 管理患者的期望需要明确沟通关于与年龄相关的ART成功率.
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