Single Embryo Transfer with IVF
The safest pregnancy with the best chance for a healthy baby is a singleton pregnancy — multiple pregnancies (even with twins) come with serious risks. Single embryo transfer (SET) with in vitro fertilization (IVF) performed in a high quality laboratory has been found in several studies to be the best solution for patients with a good prognosis, particularly in patients who are under 35 or who conceived with their first IVF cycle, as well as those who are concerned about a multiple pregnancy or who are using donor eggs.
Embryo transfer is the process by which one or several embryos are placed in the patient's uterus. In single embryo transfer, one embryo is selected and placed in the fallopian tube or uterus. The embryo selected might be a fresh embryo or a frozen embryo from a prior IVF cycle. The embryo could also be from a donor.
Researchers have found that transferring single embryos over several IVF cycles using both fresh and frozen embryos is less expensive and more effective than transferring two or more embryos at a time. And SET is much less likely to result in multiple births and the ensuing risk of complication.