Recurrent implantation failure refers to failure to achieve a clinical pregnancy after transfer of
at least four good-quality embryos in a minimum of three fresh or frozen cycles in a woman …

BACKGROUND Trophectoderm (TE) biopsy and next generation sequencing (NGS) are
currently the preferred techniques for preimplantation genetic testing for aneuploidies (PGT …

STUDY QUESTION Does conventional blastocyst morphological evaluation correlate with
euploidy (as assessed by comprehensive chromosome screening (CCS) of trophectoderm …

BACKGROUND Many variations in oocyte and embryo grading make inter-laboratory
comparisons extremely difficult. This paper reports the proceedings of an international …

There is a high incidence of chromosomal abnormalities in early human embryos, whether
they are generated by natural conception or by assisted reproductive technologies (ART) …

Background Single embryo transfer (SET) remains underutilized as a strategy to reduce
multiple gestation risk in IVF, and its overall lower pregnancy rate underscores the need for …

Preimplantation Genetic Diagnosis and Screening (PGD/PGS) for monogenic diseases
and/or numerical/structural chromosomal abnormalities is a tool for embryo testing aimed at …

Objective To assess the relationship between maternal age, chromosome abnormality,
implantation, and pregnancy loss. Design Multicenter retrospective study. Setting IVF …

BACKGROUND Preimplantation genetic screening (PGS) has increasingly been used in the
past decade. Here we present a systematic review and meta-analysis of RCTs on the effect …

OBJECTIVE: To perform a systematic review of the literature to identify randomized
controlled trials assessing the efficacy of oocyte vitrification in terms of oocyte survival …