Much recent progress has been made by assisted reproductive technology (ART) professionals toward minimizing the incidence of multiple pregnancy following ART treatment. While a healthy singleton birth is widely considered to be the ideal outcome of such treatment, a vocal minority continues a campaign to advocate the benefits of multiple embryo transfer as treatment and twin pregnancy as outco...

Objective Women undergoing IVF cycles should go successfully through multiple points during the procedure (i.e., implantation, clinical pregnancy, no spontaneous abortion and delivery) to achieve live births. On the other there is a need to consider previous reproductive outcomes and as well as the current cycle. In this study, data on multiple cycles and multiple points during the IVF cycle ar...

Background: Anti-Mullerian hormone (AMH) has been suggested as a marker of ovarian reserve and predictor of ovarian response to controlled ovarian hyper stimulation. The aim of this study is to determine the role of AMH in prediction of success ART cycles in patients with normal FSH serum levels. Materials and Methods: This prospective cohort study included 80 infertile women under 4o years, wh...

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...

OBJECTIVE The main objective of this study was to assess the prevalence of overweight and obesity among patients undergoing assisted reproductive technology (ART) in Latin America and its consequences on treatment outcomes. METHODS We used the Latin American Registry of ART to obtain women's age and body mass index (BMI), cancellation rate, number of oocytes retrieved and embryos transferred,...

Thanks to assisted reproduction technology (ART) most couples with infertility can be helped today. Since the beginning of ART, however, two major problems have existed. In the first years of IVF more than one embryo was transferred in order to reach acceptable pregnancy rates, but this entails a risk of multiple pregnancy with all its morbidity and mortality due to premature birth. Also, studi...

OBJECTIVE To compare the live birth rate, multiple pregnancy rate, and obstetric outcomes of elective single and double embryo transfers. DESIGN Case series with internal comparisons. SETTING University affiliated hospital, Hong Kong. PARTICIPANTS Between October 2009 and December 2011, 206 women underwent their first in-vitro fertilisation cycle. Elective single embryo transfer was offer...

BACKGROUND One of the most important factors affecting success rates in assisted reproductive techniques (ART) besides the number of oocytes retrieved and high quality embryos derived from them is the technical aspects of embryo transfer. It seems that pretreatement with uterine relaxants can be helpful in preventing un- pleasant cramps which can have an adverse effect on ART outcome. In this r...

BACKGROUND Polycystic ovary syndrome (PCOS) patients are at increased risk of pregnancy complications, which may impair pregnancy outcome. Transfer of fresh embryos after superovulation may lead to abnormal implantation and placentation and further increase risk for pregnancy loss and complications. Some preliminary data suggest that elective embryo cryopreservation followed by frozen-thawed em...

background: despite of higher pregnancy rate after frozen embryo transfer (fet) which is accepted by the majority of researches, the safety of this method and its effect on neonatal outcome is still under debate. objective: the aim of this study was to evaluate pregnancy and neonatal outcome of fet compare to fresh cycles. materials and methods: in this study,1134 patients using fresh et and 28...