Objective To determine which variables affect most the clinical pregnancy rate with positive
fetal heartbeat (CPR FHB+) when frozen embryo transfer (FET) cycles are performed with …

STUDY QUESTION Is the morphological grading system for blastocysts associated with
perinatal outcomes in women undergoing frozen–thawed single blastocyst transfer (SBT) …

Purpose The purpose of this matched-cohort study was to assess endometrial receptivity to
blastocyst implantation in fresh embryo transfer by comparing implantation outcomes of …

The aim of the present study was to analyze the high‑quality blastocyst (HB) rate in all
embryo frozen cycles and investigate the pregnancy outcomes for day 5/day 6 (D5/D6) …

Outcomes among women who transferred only Gardner's grade BB or lower quality frozen
embryos transferred (FET) are not well known. Our objective is to study whether transferring …

STUDY QUESTION Is there an optimal window of time when the transfer of single frozen-
thawed euploid blastocysts is associated with a maximal live birth rate (LBR)? SUMMARY …

STUDY QUESTION The aim of this study was to evaluate the live birth rate (LBR) after frozen–
thawed Day 5 (D5) and Day 6 (D6) blastocyst transfers. SUMMARY ANSWER LBR following …

Purpose To evaluate whether morphology impacts the pregnancy and neonatal outcomes of
euploid blastocysts, and whether maternal age still affects outcomes when top-graded …

This meta-analysis aimed to assess the reproductive competence of blastocysts developed
on day 7 compared with blastocysts developed on day 5/6. A systematic search was carried …

Research question Which factors impact on clinical pregnancy rate (CPR) and live birth
rates (LBR) in euploid frozen embryo transfer (eFET) cycles? Design Retrospective …