The effects of oocyte donor and recipient body mass index on live birth rates and pregnancy outcomes following assisted reproduction.

Objective: To investigate the effects of oocyte donor and recipient body mass index (BMI) on outcomes of vitrified donor oocyte assisted reproductive technology (ART).

Design: Retrospective cohort study.

Setting: Private fertility center.

When using donor oocytes, does embryo stage matter? An analysis of blastocyst versus cleavage stage embryo transfers using a cryopreserved donor oocyte bank.

Purpose: Oocyte donor in vitro fertilization (IVF) represents an ideal model to study the effects of embryo stage on reproductive success, as embryos come from young women with high-quality oocytes. Our study aimed to determine if embryo transfer stage affected outcomes in oocyte donor IVF, including the common scenario where only a limited number of quality embryos are available after culture.

Methods: This retrospective cohort analyzed anonymous vitrified donor oocyte cycles at a single clinic between 2008 and 2015.

The effect of donor and recipient race on outcomes of assisted reproduction.

Background: A growing literature suggests that minority races, particularly Black women, have a lower probability of live birth and higher risk of perinatal complications after autologous assisted reproductive technology. However, questions still remain as to whether these racial disparities have arisen because of associations between race and oocyte/embryo quality, the uterine environment, or a combination of the two. Oocyte donation assisted reproductive technology represents a unique approach to examine this question.

Impact of male partner characteristics and semen parameters on in vitro fertilization and obstetric outcomes in a frozen oocyte donor model.

Objective: To examine the degree to which paternal variables of age, body mass index (BMI), and sperm parameters affect vitrified donor oocyte IVF outcomes. Previous studies examining the impact of male partner characteristics on in-vitro fertilization (IVF) have found conflicting results. Concerns are rising over the potential effects of paternal factors, such as age and obesity, on pregnancy and child health.

Sex selection for non-medical indications: a survey of current pre-implantation genetic screening practices among U.S. ART clinics.

Purpose: This study aimed to determine the current percentage of United States (U.S.) assisted reproductive technology (ART) clinics offering sex selection via pre-implantation genetic screening (PGS) for non-medical purposes.