Transfer of 2 Embryos Using a Double-Embryo Transfer Protocol Versus 2 Sequential Single-Embryo Transfers: The Impact on Multiple Pregnancy

摘要

Introduction: Assisted reproductive technologies (ARTs) are associated with potential risks, mainly related to multiple pregnancies, which are around 20% to 25%. Iatrogenic multiple pregnancies due to ovarian stimulation with multiples embryos transferred can be avoided by the elective single-embryo transfer (eSET), a growing practice worldwide. Adequately applied eSET, which impact on the incidence of complications without compromising treatment success, is still a challenge. The aim of this study was to compare the cumulative success rates of elective transfer of 2 embryos when transferred one by one (eSET), versus the success rates of elective double-embryo transfer (DET) in a single procedure, in a good prognosis population.