Despite the worldwide increase in frozen embryo transfer, the search for the best protocol to
prime endometrium continues. Well-designed trials comparing various frozen embryo …

BACKGROUND A normal chromosomal constitution defined through PGT-A assessing all
chromosomes on trophectoderm (TE) biopsies represents the strongest predictor of embryo …

STUDY QUESTION Does an individualised luteal phase support (iLPS), according to serum
progesterone (P4) level the day prior to euploid frozen embryo transfer (FET), improve …

Objective To investigate the association between luteal serum progesterone levels and
frozen embryo transfer (FET) outcomes. Design Systematic review and meta-analysis …

Background: Preimplantation genetic testing (PGT) is widely used today in in-vitro
fertilization (IVF) centers over the world for selecting euploid embryos for transfer and to …

Over the past decade, the application of frozen-thawed embryo transfer treatment cycles has
increased substantially. Hormone replacement therapy and the natural cycle are two …

Purpose To predict miscarriage outcome within 12 weeks of gestational age by evaluating
values of serum estradiol, progesterone and β-human chorionic gonadotropin (β-HCG) …

STUDY QUESTION Does the endometrial preparation protocol (artificial cycle (AC) vs
natural cycle (NC) vs stimulated cycle (SC)) impact the risk of early pregnancy loss and live …

Progesterone plays a key role in implantation. Several studies reported that lower luteal
progesterone levels might be related to decreased chances of pregnancy. This systematic …

Background Previous observational studies have highlighted the negative effects of serum
hormone levels at the minimum threshold during frozen embryo transfer (FET) cycles …