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NEJM:胚胎移植方法对排卵性不孕女性胚胎存活率的影响

2018-01-11 zhangfan MedSci原创

研究发现对于排卵性不孕女性,胚胎移植方法对活胎率的影响差异不显著,但冷冻胚胎移植可减少卵巢过度刺激,降低并发症风险

对于无排卵合并多囊卵巢综合征女性,选择性冷冻胚胎移植的活胎率高于新鲜胚胎移植。近日研究人员考察了排卵性不孕症胚胎移植方法对活胎率的影响。

2157名首次接受体外受精的女性参与研究,接受新鲜胚胎移植或冷冻胚胎移植。每名参与者接受最多2次卵裂期胚胎移植。研究的主要终点是胚胎移植后的活胎率。

研究发现,组间移植后活胎率差异不显著(冻胚vs新鲜胚胎;48.7% vs 50.2%,相对风险为0.97,95% ,CI, 0.89 -1.06; P=0.50)。组间孕期不良事件及流产率相近。冷冻胚胎移植导致卵巢过度刺激综合征风险明显低于新鲜胚胎移植。(0.6 vs 2.0%,rr, 0.32; 95% CI, 0.14 -0.74; P=0.005)。产科、新生儿并发症及其他不良事件风险差异不显著。

研究发现对于排卵性不孕女性,胚胎移植方法对活胎率的影响差异不显著,但冷冻胚胎移植可减少卵巢过度刺激,降低并发症风险。

原始出处:

Yuhua Shi et al. Transfer of Fresh versus Frozen Embryos in Ovulatory Women. N Engl J Med. January 11, 2018.

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    2018-01-13 ailian1202
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