Background Advances in embryo culture media have led to a shift in in vitro fertilisation (IVF)
practice from cleavage‐stage embryo transfer to blastocyst‐stage embryo transfer. The …

Background Gonadotropin‐releasing hormone (GnRH) antagonist protocols for pituitary
down regulation in in vitro fertilisation (IVF) and intracytoplasmic sperm injection (ICSI) allow …

STUDY QUESTION What is the impact of ovarian response on cumulative live birth rates
(LBR) following utilization of all fresh and frozen embryos in women undergoing their first …

BACKGROUND While live birth is the principal clinical outcome following in vitro fertilization
(IVF) treatment, the number of eggs retrieved following ovarian stimulation is often used as a …

BACKGROUND Elevated serum progesterone levels at the end of the follicular phase in
controlled ovarian stimulation (COS) leads to a poorer ongoing pregnancy rate in IVF cycles …

To allow selection of embryos for transfer after in vitro fertilization, ovarian stimulation is
usually carried out with exogenous gonadotropins. To compensate for changes induced by …

BACKGROUND GnRH agonist (GnRHa) triggering has been shown to significantly reduce
the occurrence of ovarian hyperstimulation syndrome (OHSS) compared with hCG …

BACKGROUND: We aimed to determine the efficacy of ovarian hyperstimulation protocols
employing a GnRH antagonist to prevent a premature LH rise allowing final oocyte …

STUDY QUESTION Is supraphysiologic estradiol (E2) an independent predictor of low birth
weight (LBW) in singletons born after fresh IVF-embryo transfer (ET) cycles? SUMMARY …

STUDY QUESTION What is the association between the number of oocytes retrieved and
the live birth rate (LBR) following first IVF treatment cycles in China? SUMMARY ANSWER …