Effect of hCG day’s estradiol levels on pregnancy outcomes following GnRH antagonist protocol: a retrospective study of 3192 fresh embryo transfer cycles

Effect of hCG day’s estradiol levels on pregnancy outcomes following GnRH antagonist protocol: a retrospective study of 3192 fresh embryo transfer cycles

Abstract Background To evaluate the impact of estradiol levels of hCG day (E2-hCG) on pregnancy outcomes in fresh embryo transfer (ET) cycles following antagonist protocol. Methods The retrospective study includes 3192 fresh ET cycles under antagonist protocol at Xiangya Hospital from October 2020 t...

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Bibliographic Details
Main Authors: Hong Zeng, Yahan Chang, Nenghui Liu, Shuyi Li
Format: Article
Language:English
Published: BMC 2025-08-01
Series:BMC Pregnancy and Childbirth
Subjects:
Antagonist protocol
Estradiol
HCG trigger
Generalized additive model
Assisted reproductive medicine
Online Access:https://doi.org/10.1186/s12884-025-07929-x
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https://doi.org/10.1186/s12884-025-07929-x

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