Worldwide, more than 7 million children have now been born after ART: these delivery rates
are steadily rising and now comprise 2–6% of births in the European countries. To achieve …

BACKGROUND Initial observational studies and a systematic review published 5 years ago
have suggested that obstetric and perinatal outcomes are better in offspring conceived …

BACKGROUND Successful cryopreservation of oocytes and embryos is essential not only to
maximize the safety and efficacy of ovarian stimulation cycles in an IVF treatment, but also to …

Cryopreservation has become a central pillar in assisted reproduction, reflected in the
exponential increase of “freeze all” cycles in the past few years. Vitrification makes it …

STUDY QUESTION Are live birth rates (LBRs) after artificial cycle frozen-thawed embryo
transfer (AC-FET) non-inferior to LBRs after modified natural cycle frozen-thawed embryo …

In recent years, the growing use of ART (assisted reproductive techniques) has led to a
progressive improvement of protocols; embryo freezing is certainly one of the most important …

STUDY QUESTION Is there a difference in clinical pregnancy and live birth rates (LBRs)
between blastocysts developing on Day 5 (D5) and blastocysts developing on Day 6 (D6) …

Progesterone is the ovarian steroid produced by the granulosa cells of follicles after the LH
peak at mid-cycle. Its role is to sustain embryo endometrial implantation and ongoing …

Assisted Reproductive Technology (ART) Techniques - Abstract - Europe PMC Sign in |
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STUDY QUESTION Has the number of preimplantation genetic testing (PGT) cycles in the
UK and USA changed between 2014 and 2016? SUMMARY ANSWER From 2014 to 2016 …