在冷胚胎移植失败后的结果:改变协议不会改善活产
Jennifer Chae-Kim1, Kerry Flannagan2, Laura Zalles3
1Program in Reproductive Endocrinology and Gynecology, National Institutes of Health, National Institute for Child and Human Development, Bethesda, Maryland; Division of Reproductive Endocrinology and Infertility, Walter Reed National Military Medical Center, Bethesda, Maryland.
Fertility and sterility
|August 8, 2025
概括
在初始失败后改变冷胚胎移植 (FET) 协议不会显著影响活产率. 对大多数患者来说,重复相同的FET协议或切换到不同的FET协议产生了类似的结果,尽管真正的自然FET在一个子组中显示出了希望.
科学领域:
- 生殖内分泌学 生殖内分泌学
- 在体外受精 (IVF)
背景情况:
- 冷胚胎移植 (FET) 是辅助生殖技术的一个关键组成部分.
- 在初始FET后无法实现活产的女性通常会经历随后的周期.
- 对于FET的子宫内膜制备协议可能会有所不同,包括编程和自然周期.
研究的目的:
- 调查改变冷胚胎移植 (FET) 的子宫内膜制备方案是否会影响先前失败的FET的妇女的怀孕结果.
- 为了比较重复相同的FET协议和在最初不成功的FET后切换到不同的协议之间的怀孕结果.
主要方法:
- 追溯队列研究分析了2012年至2022年的17989个FET周期.
- 根据初始和随后的FET协议 (编程与自然) 将患者分为四组.
- 主要结局是活产;次要结局包括临床怀孕和流产.
主要成果:
- 在初始失败FET后,从编程FET转换为自然FET或反之时,没有观察到活产率的显著差异.
- 重复最初的FET协议与切换协议显示了可比的活产,临床怀孕和流产率.
- 一个子组分析表明,在一个失败的编程FET之后,切换到"真正"的自然FET协议时,对活产率有潜在的好处.
结论:
- 在最初的失败尝试后改变或重复FET协议不会显著改变活产,临床怀孕或怀孕流产率.
- 在初始失败后,选择FET协议 (编程与自然) 可能不是成功的主要决定因素.
- 需要进一步的研究来阐明"真正的"自然FET协议对怀孕结果的具体影响.
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