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 Is there a serum progesterone (P) threshold on the day of embryo
transfer (ET) in artificial endometrium preparation cycles below which the chances of …

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 …

Objective To analyze the impact on live birth rates (LBRs) of the individualized luteal phase
support (termed iLPS) in patients with low serum progesterone (P) levels compared with …

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 …

Objective To determine whether vaginal progesterone for programmed endometrial
preparation is noninferior to intramuscular progesterone in terms of live birth rates from …

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 …

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 …