Importance To date, recurrent implantation failure (RIF) has no clear definition and no clearly
identified impaired function. Hence, the term RIF is currently used somewhat haphazardly …

Infertility affects one in six couples, with in vitro fertilization (IVF) offering many the chance of
conception. Compared to the solitary oocyte produced during the natural menstrual cycle …

STUDY QUESTION Which add-ons are safe and effective to be used in ART treatment?
SUMMARY ANSWER Forty-two recommendations were formulated on the use of add-ons in …

Importance Implantation failure remains a critical barrier to in vitro fertilization. Prednisone,
as an immune-regulatory agent, is widely used to improve the probability of implantation and …

STUDY QUESTION What are the clinical pregnancy and live birth rates in women who
underwent up to two more euploid blastocyst transfers after three failures in the absence of …

After more than a decade of increasingly widespread clinical use, personalized embryo
transfer guided by endometrial receptivity analysis (ERA) remains controversial and …

A narrative review of endometrial receptivity in adenomyosis and/or endometriosis revealed
that this parameter is difficult to assess in natural conception because both disorders alter …

STUDY QUESTION Does a personalized embryo transfer (pET) guided by tests for
endometrial receptivity (TER) increase the effectiveness of ART procedures? SUMMARY …

Frozen-thawed embryo transfer (FET) has been a viable alternative to fresh embryo transfer
in recent years because of the improvement in vitrification methods. Laboratory-based …

This review evaluates the role of ovarian and endometrial biomarkers in predicting
outcomes in assisted reproductive technology (ART). It highlights established ovarian …