INTRODUCTION Pregnancy rates after frozen embryo transfer (FET) have improved in recent years and are now approaching or even exceeding those obtained after fresh embryo transfer. This is partly due to improved laboratory techniques, but may also be caused by a more physiological hormonal and endometrial environment in FET cycles. Furthermore, the risk of ovarian hyperstimulation syndrome is pr...

BACKGROUND The purpose of this study was to determine the optimal endometrial preparation protocol by comparing the clinical outcome of two methods of endometrial preparation in frozen-thawed embryo transfer (FET) cycles, including that is, oral estradiol and 17ß-estradiol transdermal patch. METHODS In this randomized controlled trial, women underwent either conventional IVF or intracytoplasm...

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...

Background & aim: There are conflicting results regarding the benefit of gonadotropin releasing hormone (GnRH) agonist treatment on frozen embryo transfer (FET) outcome. No study was found to compare pregnancy outcome between patients undergoing short and long acting types of GnRH agonist for FET cycles. This study aimed to assess the effectiveness of short and long ac...

Assisted Hatching (AH) is a technique performed after In Vitro Fertilization (IVF) and involves the artificial thinning or opening of the Zona Pellucida (ZP) prior to Embryo Transfer (ET) as an attempt to improve the probability of embryo implantation. AH can be performed by embryologists via mechanical, chemical, or laser-assisted means. A few studies suggest that a larger size of ZP opening/t...

ObjectiveTo compare the live birth rate between patients who undergo personalized embryo transfer (pET) after endometrial receptivity array (ERA) versus frozen (FET) with standard timing in first single euploid FET cycles. To report of displacement window implantation (WOI) an infertile population without a history failure.DesignProspective cohort study underwent their programmed FET.SettingPri...

Background: Progesterone (PG) is an essential hormone in the process of implantation and pregnancy maintenance. Frozen-thawed embryo transfer (FET) being performed worldwide. This study was designed to investigate whether serum progesterone levels on day prior 5 frozen-thawed hormonally prepared endometrium correlates with outcomes. Materials Methods: A single center longitudinal observational ...

Background: Our aim in this study was to evaluate whether endometrial receptivity assay (ERA) test improves single, autologous euploid frozen-thawed embryo transfer (FET) outcomes patients with repeated implantation failure. Methods: This a retrospective cohort which conducted University affiliated private hospital. The included 135 failure who underwent ERA adjusted and non-adjusted FET. Patie...

background: frozen- thawed embryo transfer is an essential part of art treatment and outcomes of this procedure are associated with several clinical factors. several studies have showed an increase level of ivf outcomes in women with sufficient vitamin d. objective: whether treatment of vitamin d insufficiency can improve pregnancy rates in frozen-thawed embryo transfer cycles. materials and me...