embryo transfer

(redirected from Double 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 ?
Obstetric outcome after in vitro fertilisation with single or double embryo transfer.
Investigators compared clinical outcomes in two periods--1995-1999, when double embryo transfer (DET) was the norm and only 4% of women had eSET, and 2000-2004, when 46% of 684 women underwent eSET
The incidence of monozygote twinning has been described in IVF, meaning that a triplet birth could result from a double embryo transfer.
Results were gathered for elective single embryo transfer (eSET) with a top quality embryo, elective single embryo transfer with a nontop quality embryo, compulsory single embryo transfer (because there was only one embryo available) and double embryo transfer (DET).
He found that 75% of participants rated double embryo transfer (DET) as highly desirable, and 72% rated a twin pregnancy as highly desirable.
Older women or those with poor-quality embryos are considered exceptions to the rule who may be suitable for double embryo transfers.