embryo transfer

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Related to embryo transfer: embryo implantation

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

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.


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 ?
In conclusion, for the patients who are at risk of OHSS, the embryos would be vitrified for frozen embryo transfer in order to reduce complication of fresh embryo transfer in OHSS cycle and improve the pregnancy rate.
Data Source: Two national databases totaling almost 32,000 natural and frozen or fresh embryo transfer pregnancies.
Key Outcomes Similar for Embryo Transfer Strategies GnRH antagonist GnRH agonist Multiple pregnancy rate 24% 26% Delivery rate 27% 29% Miscarriage rate 10.
This is the first time that a single embryo transfer trial has shown equal, and in fact better, outcomes than a traditional morphology-based double embryo transfer," said Eric J.
This new ability to do a day-5 embryo biopsy and get the results back so fast that there's no need to undertake a frozen embryo transfer is a significant advance, Dr.
Blastocyst euploid selective transfer (BEST): an RCT of comprehensive chromosome screening-single embryo transfer (CCS-SET) vs.
Steel acupuncture needles were inserted at five points 25 minutes before and at four points after embryo transfer.
Personalized predictions of multiple birth risks enable patients and physicians to make safer and more informed embryo transfer decisions, while aiming to reduce incidence of unplanned multiple births.
That falls within the recently revised SART/ASRM embryo transfer guidelines recommending that only one more embryo be transferred than called for in four age-based prognostic categories.
This allows for same-day screening for chromosomal abnormalities with subsequent fresh embryo transfer in in vitro fertilization (IVF).
In October 2009, ASRM and the Society for Assisted Reproductive Technology issued new embryo transfer guidelines that "consideration should be given to transferring only a single embryo" for patients under age 35 who have a favorable prognosis, and recommended transferring only one more embryo than called for in four age-based prognostic categories.
Through its agricultural subsidiary, Aershan, the company has contracts totaling US$2,342,000 for the sale of mutton, US$5,233,000 for cattle embryo transfers and an additional US$1,346,000 for other embryo transfer services.