embryo transfer

(redirected from Single embryo transfer)
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em·bry·o trans·'fer

after in vitro artificial insemination, the embryo is transferred at the morula or blastocyst stage to the recipient's uterus or uterine tube.

embryo transfer

n.
1. The process in which an egg that has been fertilized in vitro is transferred into a recipient's uterus.
2. A technique used in animal breeding in which an embryo from a superovulated female animal is transferred to the uterus of a recipient female animal. In both senses also called embryo transplant.

embryo transfer

a process of implanting a fertilized ovum in a uterus.

embryo

a new organism in the earliest stage of development, i.e. from the time that the fertilized embryo begins to develop a long axis up to the time that the major structures have begun to develop, when it becomes a fetus.

embryo collection
collection of an embryo from the genital tract for the purposes of embryo transfer; surgical and nonsurgical techniques available.
embryo cryopreservation
preservation of embryos by freezing.
hexacanth embryo
the larva with six hooks present in the cestode egg when it escapes from the uterus of the adult tapeworm. Called also oncosphere.
embryo micromanipulation
handling of an embryo under a microscope, for examination, dissection.
embryo transfer
collection of fertilized ova from one female before they become implanted and transfer to another female to complete the gestation. The donor is usually superovulated and then inseminated. Collection may be surgical via a laparotomy or nonsurgical by flushing through the cervix. Collected embryos must be stored carefully. They are evaluated in terms of fertilization, possibly cleaved artificially to create clones, and washed to eliminate the possibility of transferring infection with the embryo. Long-term storage by freezing is a practicable procedure. The recipient needs to be in appropriate stage of uterine receptivity, effected by synchronizing the estrus cycle with that of the donor.
embryo transplant
see embryo transfer (above).
References in periodicals archive ?
To ensure rates of multiple births remain low, there is little doubt that the single most important factor that could enhance the acceptance of single embryo transfer among patients and practitioners is appropriate funding for IVF treatment.
It extends time for embryo evaluation, allows systematic application of elective single embryo transfer policy, enables egg banking for donation and/or for oocyte accumulation, permits fertility preservation for medical and non-medical indications, enhances cumulative live birth rate per oocyte retrieval cycle and also provides the opportunity to perform cycle segmentation.
RAD plans to correlate PGS test results with EmbryoScope time-lapse data as a new approach for boosting IVF success with single embryo transfer.
In New Zealand, the single embryo transfer (SET) policy has significantly reduced the risk of multiple births and their associated high risk of complications for the babies, mother and society (Murray, Hutton, & Peek, 2005).
Two cycles using single embryo transfer - one fresh and one frozen - results in similar rates of successful births as a traditional cycle using two or more embryos.
Hopefully, this means women and their physicians are confident they can get another good chance with frozen embryos, and this helps them become more comfortable with the idea of a single embryo transfer," Dr.
Dr Falconer added: "We strongly endorse the recommendation that single embryo transfer is used if possible for women aged 39 and under.
In Sweden for example, a country in which public funding usually supports up to three cycles of IVF, a 2003 law recommends that patients age 38 and younger be limited to single embryo transfer (SET).
36) If the costs of IVF are not an issue, patients might be more willing to try single embryo transfer because although it might decrease their chances of conceiving, (37) they would nonetheless be able to afford multiple cycles.
According to ANGLE's founder and chief executive, Andrew Newland, EmbryoSure has the potential to significantly improve the selection of embryos for IVF, thereby enabling single embryo transfer with increased pregnancy success rates.
This meta-analysis compares the effect of elective single embryo transfer versus double embryo transfer on pregnancy outcomes by combining data from the 1,367 individual patients in the five substantial published trials and three other unpublished trials of single embryo replacement, two of which were stopped.
The latest study, published in the British Medical Journal (BMJ), involved 683 women having a single embryo transfer and 684 having a double transfer.

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