Impact of different endometrial preparation protocols before frozen embryo transfer on pregnancy outcomes: a review

被引:21
|
作者
Roelens, Caroline [1 ,3 ]
Blockeel, Christophe [1 ,2 ]
机构
[1] Univ Ziekenhuis Brussel, Brussels IVF, Brussels, Belgium
[2] Univ Zagreb, Sch Med, Dept Obstet & Gynaecol, Zagreb, Croatia
[3] Univ Ziekenhuis Brussel, Brussels IVF, Laarbeeklaan 101, B-1090 Brussels, Belgium
关键词
Frozen embryo transfer; programmed cycle; natural cycle; stimulated cycle; LUTEAL-PHASE SUPPORT; LOW SERUM PROGESTERONE; LIVE BIRTH-RATES; TRANSFER CYCLES; OOCYTE DONATION; CLOMIPHENE CITRATE; ARTIFICIAL CYCLES; NATURAL-CYCLE; WOMEN; DYDROGESTERONE;
D O I
10.1016/j.fertnstert.2022.09.003
中图分类号
R71 [妇产科学];
学科分类号
100211 ;
摘要
The use of frozen embryo transfer cycles has exponentially increased in the last few years. Optimization of endometrial preparation protocols before frozen embryo transfer is mandatory to further improve pregnancy outcomes. This review will focus on the existing literature with regard to the different available endometrial preparation protocols and their impact on pregnancy outcomes. More spe-cifically, we will focus on programmed, natural, and stimulated frozen embryo transfer cycles. The studies performed on this topic are generally of low quality, and only a few well-performed randomized controlled trials have been published. To date, no strong evidence is available to support the use of 1 preparation method over another in terms of pregnancy outcomes. However, robust data have shown a clearly protective effect of natural frozen embryo transfer cycles against long-term obstetric complications, mainly hypertensive dis-orders of pregnancy and large for gestational age infants. The introduction of individualized luteal phase support in different endome-trial preparation protocols is actually gaining a lot of attention and requires further investigation. (Fertil Sterile 2022;118:820-7.(c) 2022 by American Society for Reproductive Medicine.)
引用
收藏
页码:820 / 827
页数:8
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