Elevated serum estradiol levels on embryo transfer day predict higher pregnancy success in HRT-FET cycles

Abstract Objective To investigate the association between serum estradiol (E2) levels on the day of embryo transfer and clinical pregnancy outcomes in hormonally prepared frozen–thawed embryo transfer (HRT-FET) cycles with optimal progesterone (P4) levels. Methods In this retrospective study, 175 HR...

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Bibliographic Details

Published in:	Reproductive Biology and Endocrinology
Main Authors:	Maryam Azizi Kutenaee, Fatemeh Bahmani, Farzaneh Fesahat, Nasibeh Roozbeh, Ensieh Salehi
Format:	Article
Language:	English
Published:	BMC 2025-09-01
Subjects:	Estradiol Frozen embryo transfer Clinical pregnancy Hormonal replacement therapy Embryo transfer timing
Online Access:	https://doi.org/10.1186/s12958-025-01457-1