Abstract
BackgroundIn some in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI) cycles, we may consider transferring one poor-quality embryo with one good-quality embryo. Previous studies have indicated that the poor-quality embryo transferred with a good-quality embryo does not negatively affect the clinical pregnancy rate or live birth rate. The purpose of this study was to evaluate pregnancy outcomes and neonatal outcomes in this context.MethodsThis was a retrospective study that included 1646 cycles from our centre. Patients were divided into two groups (group A: one good-quality embryo was transferred with one poor-quality embryo; group B: two good-quality embryos were transferred). The primary outcomes were the clinical pregnancy rate and live birth rate. Additionally, we investigated the implantation rate, ectopic pregnancy rate, abortion rate, multiple pregnancy rate, birthweight and gestational age.ResultsWe found that there were no differences in the clinical pregnancy rate and live birth rate between group A and group B. However, the implantation rate and multiple pregnancy rate were higher in group B than in group A.ConclusionsThe poor-quality embryo does not have a significant influence on the good-quality embryo when transferred together.
Highlights
In some in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI) cycles, we may consider transferring one poor-quality embryo with one good-quality embryo
A meta-analysis found that the live birth rate was lower for single-embryo transfer (SET) than for Double-embryo transfer (DET), while the live birth rate of a repeated SET was not different from
All patients who underwent in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI) at the reproduction centre of the Third Affiliated Hospital of Zhengzhou University between January 2012 and December 2015 were included in this study
Summary
In some in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI) cycles, we may consider transferring one poor-quality embryo with one good-quality embryo. Previous studies have indicated that the poorquality embryo transferred with a good-quality embryo does not negatively affect the clinical pregnancy rate or live birth rate. The quality of the embryo influences the results of assisted reproductive technology treatment [6,7,8]. What should be done with a poor-quality embryo in assisted reproductive technology treatments? One study indicated that the poor quality of one embryo may influence the quality of another embryo [9]. The blastocyst rate is decreased due to the influence of a poor-quality embryo. Regarding embryo transfer into the uterus, one study pointed out that a poor-quality embryo
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