Methods for endometrial preparation in frozen-thawed embryo transfer cycles.

P-191: A Comparison of The Effects of Transdermal Estradiol and Estradiol Valerate on Endometrial Receptivity in Frozen-Thawed Embryo Transfer Cycles: A Randomized Clinical Trial

Background: The aim of this prospective randomized clinical trial was to determine the optimal endometrial preparation protocol by comparing the clinical outcome of two methods of endometrial preparation in FET cycles, that is, oral estradiol and 17 β-estradiol transdermal patch. Materials and Methods: A total number of 90 patients were scheduled for FET. In the study group (n=45), 17-B estradi...

P-203: The Impact of Low-Dose Aspirin on Clinical Reproductive Outcomes in Frozen- Thawed Embryo Transfer Cycles; A Randomized, Placebo-Controlled Double- Blind Study

Background: The objective of this study is to evaluate whether low-dose aspirin affects doppler sonographic parameters of the uterine arteries, endometrial thickness and pregnancy rate of women undergoing frozen-thawed embryo transfer cycles. Materials and Methods: This randomized, double- blind, placebo-controlled trial study was conducted between April 2012, and March 2013. A total of 60 elig...

I-29: Can Fresh Embryo Transfers Be Replacedby Cryopreserved-Thawed Embryo Transfers inAssisted Reproductive Cycles? A RandomizedControlled Trial

Background: Controlled ovarian stimulation (COS) has been shown to advance endometrial maturation and affect adversely implantation in assisted reproduction technology (ART) cycles. It has been reported that there is a better embryo-endometrium synchrony in frozenthawed embryo transfer (FET) cycles than fresh embryo transfer (ET) cycles. The Background of this study was to compare ongoing pregn...

Effect of Adding Human Chorionic Gonadotropin to The Endometrial Preparation Protocol in Frozen Embryo Transfer Cycles

Gonadotropin-releasing hormone agonist for oocyte triggering in endometrial preparation of letrozole stimulation protocols does not affect clinical outcome of frozen-thawed embryo transfer.

OBJECTIVE This study aims to evaluate the effectiveness of GnRH agonist in comparison with hCG for triggering final oocyte maturation in endometrial preparation of letrozole stimulation protocols for frozen-thawed embryo transfer. METHODS The frozen-thawed embryo transfer cycles (FET) that use the letrozole stimulation protocols for endometrial preparation were divided into two groups accordi...