Objective: This study aimed to evaluate the effectiveness of elective single embryo transfer (eSET) versus double (DET) in frozen cycles following vitro fertilization (IVF) treatment good prognosis patients. The outcome would provide medical data for multiple pregnancy rate reduction IVF treatment.
 Methods: multicenter retrospective cohort was performed patients undergoing first (FET) at ...

Embryo transfer (ET) is universally recognized as the final and most critical stage in an in vitro fertilization (IVF) outcome (Neithardt et al., 2005; Ghazzawi et al., 1999). The majority of couples (approximately 80%) who undergo IVF reach the embryo transfer stage, yet few pregnancies occur (Mansour & Aboulghar, 2002; Adamson et al., 2006). Although embryo genetic abnormalities (Munne et al....

BACKGROUND The true impact of the embryo transfer catheter choice on an IVF programme has not been fully examined. We therefore decided to systematically review the evidence provided in the literature so that we may evaluate a single variable in relation to a successful transfer, the firmness of the embryo transfer catheter. METHODS An extensive computerized search was conducted for all relev...

background: embryo selection is a vital part of in vitro fertilization (ivf) programs, with morphology-based grading systems having been widely used for decades. time-lapse imaging combined with embryo morph kinetics may proffer a non-invasive means for improving embryo selection. we report the first ongoing and chemical pregnancies using time-lapse embryo scope to select best embryos for trans...

STUDY QUESTION What type of transferred embryo is associated with a lower rate of ectopic pregnancy? SUMMARY ANSWER The lowest risk of ectopic pregnancy was associated with the transfer of blastocyst, frozen and single embryo compared with cleavage stage, fresh and multiple embryos. WHAT IS KNOWN ALREADY Ectopic pregnancy is a recognized complication following assisted reproductive technolo...

Differential effects of 2 transfer models for normal thawed embryos of 1 donor doe were studied on the offspring rate and their embryo survival at birth from 3 selected rabbit strains (SY and SB: synthetic strains, NZ: New Zealand White). Morulae were obtained 64-66 h post-coitum from 93 adult does treated with 25 IU of hCG (SY:36, NZ:27, SB:30). Morphologically normal morulae were frozen in th...

Embryo transfer is a multi-step process that involves the production and collection of preimplantation embryos from genetically superior females (called donors) and the subsequent transfer of the harvested embryos into reproductively healthy females (called recipients) for the purpose of establishing pregnancies and producing live offspring. The first successful embryo transfer in mammals was p...