Single-embryo transfer (SET) and more specifically elective SET (eSET) have taken their place in good clinical IVF/ICSI practice. After the initial cautious search for the characteristics of the twin-prone patient and of the selection of the embryo with the highest implantation potential many centres have embarked on the (progressive) implementation of SET, either by conviction or forced by leg...

The objective of this study was to assess fertilization, implantation and pregnancy rates in infertile patients with severe teratozoospermia [P (poor prognosis) pattern sperm morphology assessed by strict criteria] treated by in-vitro fertilization (IVF) using a high insemination concentration (HIC), or by intracytoplasmic sperm injection (ICSI). This was a retrospective cohort study performed ...

BACKGROUND Single embryo transfer (SET) after IVF/ICSI has been shown to result in an acceptable pregnancy rate in selected subjects. In our unit, SET is routinely carried out among women under the age of 36 in the first or second treatment cycle when a top-quality embryo is available. In order to define further the selection criteria for SET, we have analysed the outcome of elective SET (eSET)...

OBJECTIVE To investigate the optimum number of cycles of controlled ovarian hyperstimulation and intrauterine insemination in the treatment of unexplained infertility. DESIGN Observational prospective study. SETTING In vitro fertilization embryo transfer center. PATIENT(S) Five hundred ninety-four couples with unexplained infertility. INTERVENTION(S) Controlled ovarian hyperstimulation ...

OBJECTIVE To verify whether microinjection into retrieved oocytes of motile spermatozoa with morphologically normal nuclei, strictly defined by high power light microscopy (x >6000), improves the IVF/intracytoplasmic sperm injection (ICSI) pregnancy rate in couples with repeated ICSI failures. DESIGN Comparative prospective study testing routine IVF/ICSI outcome parameters against those of mo...

In this study, we aimed to determine the effects of hepatitis B virus (HBV) infection on sperm quality and the outcome of assisted reproductive technology (ART). A total of 916 men (457 HBV-positive and 459 HBV-negative) seeking fertility assistance from January 2008 to December 2009 at the Women's Hospital in the School of Medicine at Zhejiang University were analysed for semen parameters. Cou...

OBJECTIVE This meta-analysis was aimed to evaluate the association between maternal physical activity before IVF/ICSI cycles and reproductive outcomes. METHODS We searched databases of PubMed, EMBASE and Web of Science electronic databases, and ongoing trials up to November 2017 to identify studies that focused on the relationship between maternal physical activity before IVF/ICSI cycles and ...

BACKGROUND The aim of this study was to investigate the influence of body mass index (BMI) on the in vitro fertilization (IVF) treatment outcomes in a cohort of women undergoing their first IVF, using an intracytoplasmic sperm injection (ICSI). METHODS This retrospective cohort study included 298 cycles from women younger than 38 years old undergoing IVF-ICSI at a university infertility clini...

BACKGROUND European results of assisted reproductive techniques from treatments initiated during 2004 are presented in this eighth report. METHODS Data were mainly collected from existing national registers. From 29 countries, 785 clinics reported 367,066 treatment cycles including: IVF (114,672), ICSI (167,192), frozen embryo replacement (FER, 71,997), egg donation (ED, 10 334), preimplantat...

introduction: the aim of this study was to determine the effects of maternal age in fertilization rate of intracytoplasmic sperm injection comparison with ivf. material and methods: in this prospective clinical trial study, 200 couples with male subinfertility that referred to infertility clinic were enrolled. couples were selected on the basis of semen parameters and divided randomly into two ...