STUDY QUESTION How long is the individualized training and the stability of competence for the embryo transfer (ET) technique? SUMMARY ANSWER The embryo transfer technique is easy-to-learn, hardly unlearned, and training should be individualized by monitoring with learning curve-cumulative summation (LC-CUSUM) curves. WHAT IS KNOWN ALREADY Like many medical procedures, embryo transfer is an...

The aim of this study was to find the factors explaining the probability of success of in-vitro fertilization (IVF)-embryo transfer and its different stages: stimulation, fertilization and implantation. The sample came from a retrospective cohort followed in the IVF-embryo transfer centre of the Centre Hospitalier Universitaire of Pellegrin, Bordeaux, France; the data from 471 couples giving ri...

Background: The beneficial effect of supplementing culture medium with melatonin has been reported during in vitro embryo development of species such as mouse, bovine and porcine. However, the effect of melatonin on the mouse somatic cell nuclear transfer remained unknown. Materials and Methods: In this study, we assessed the effects of various concentrations of melatonin (10-6 to 10-12 M) on t...

BACKGROUND Single blastocyst transfer has the advantage of maximizing the fresh single pregnancy rate. However, in patients with a low number of good quality embryos on day 3, it remains unclear whether immediate embryo transfer or further embryo culture with blastocyst transfer is the most preferable option. METHODS A retrospective cohort study was carried out in which the outcome of 590 fre...

Different livestock sectors as beef industries get benefit from the production of male animals while dairy industries get benefit from the milk production by the female animals. Therefore, it is obvious need to produce the animals of desired sex which can be achieved by predetermining the sex of conceptus at the time of conception i.e. pre determination of sex may be of great economic importanc...

Background: This retrospective study compared pregnancy outcomes from single embryo transfer (SET) with multiple embryo transfer (MET) in too young (≤25 years) and young (>25 years) infertile patients. Materials and Methods: Data from infertile patients who referred for ART treatment to Yazd infertility center during 1992 to 2012 were studied retrospectively. Records of patients with SET or MET...

background: to compare the pregnancy outcomes after two embryos versus three embryos transfers (ets) in women undergoing in vitro fertilization (ivf)/intracytoplasmic sperm injection (icsi) cycles. materials and methods: this retrospective study was performed on three hundred eighty seven women with primary infertility and with at least one fresh embryo in good quality in order to transfer at e...