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Embryo Transfer

2014
Embryo transfer is a critical step in the overall success of in vitro fertilization (IVF). Despite its apparent simplicity, it is an integral part of the IVF cycle that can be difficult to teach and perform well. In this chapter we describe the procedure of embryo transfer and discuss various modifications that have been evaluated in an effort to ...
Anate Aelion, Brauer, Glenn, Schattman
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Embryo transfer techniques

Best Practice & Research Clinical Obstetrics & Gynaecology, 2019
Embryo transfer is the final and rate-limiting step of the assisted reproductive technique. Few advances have occurred in the last few decades with regard to this procedure. Studies conducted thus far have focused on factors and interventions taking place before, during and after this procedure. These factors are highly varied and range from methods to
Sotirios H, Saravelos, Tin-Chiu, Li
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Embryo Transfer

Annals of the New York Academy of Sciences, 1985
Success and failure of embryo transfer involves at least five major variables: (1) technique, (2) what is transferred, (3) when transfer occurs, (4) endometrial status at transfer, and (5) endometrial support subsequent to transfer. Because of these and other variables associated with programs of in vitro fertilization, it is quite impossible to ...
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Single-embryo transfer versus multiple-embryo transfer

Reproductive BioMedicine Online, 2009
Despite the progress made in assisted reproductive technology, live birth rates remain disappointingly low. Multiple-embryo transfer has been an accepted practice with which to increase the success rate. This has led to a higher incidence of multiple-order births compared with natural conception, which not only increase the risk of mortality and ...
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Embryo Transfer in Animals

1986
Almost 100 years have passed since Heape (1891) reported the transfer of two-cell embryos from an Angora rabbit to the oviducts of a pregnant Belgian hare. This experiment showed that the reproductive tract of the recipient had no effect on the genetic composition of the fetus, because transferred embryos resulted in Angora offspring.
F B, Kuzan, G E, Seidel
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Residual embryos in failed embryo transfer

Fertility and Sterility, 1986
One hundred thirteen embryo transfers (ETs) were performed in an in vitro fertilization and ET program of which residual or extruded embryos were found in 17 transfers (15%). Residual or extruded embryos are those embryos found outside the uterine cavity, either at the cervical os, on the vaginal speculum, or remaining in the catheter after an ET ...
A N, Poindexter   +5 more
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Equine Embryo Transfer

Veterinary Clinics of North America: Equine Practice, 1988
Current procedures for collection and transfer of equine embryos are presented. Factors affecting embryo recovery and pregnancy rates after transfer are discussed, and morphologic assessment and development of the embryo are described.
A O, McKinnon, E L, Squires
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Ultrasound-guided embryo transfer and the accuracy of trial embryo transfer

Human Reproduction, 2005
Studies have suggested that ultrasound-guided embryo transfer (UG-ET) may improve the outcome in IVF; however, several factors may account for the improvement in pregnancy rate. This study examines the use of ultrasound to determine the accuracy of trial transfer (TT) in preparation for ET.Sixty-seven consecutive patients prospectively underwent UG-ET ...
Mousa I, Shamonki   +2 more
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Embryo Transfer Surgery

2019
Embryo transfer surgery is an essential step in the process of generating gene-modified mice, regardless of whether the embryos were modified by DNA, RNA CRISPR components, or embryonic stem cells, or whether they were microinjected or electroporated.
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