A procedure still in the testing stage, where blastocysts (early stage embryos) are left longer in a culture to grow; therefore, allowing for only the best ones to be selected based on their growth and development in the lab. By implanting only two or three of the best blastocyts, this procedure minimizes multiple birth rates.
Embryos develop for 4 or 5 days (until they reach blastocyst stage), rather than the usual 2 or 3 days in IVF.
Transfer of a more developed embryo. It usually requires five days from the time of insemination of the eggs to reach this stage. Performing blastocyst transfer may allow the biologist to discriminate between healthy and unhealthy embryos, by allowing a longer observation period
This is performed when the embryos are cultivated for 4-5 days to approximately 64-cell stage at embryo transfer.
An embryo that has developed to five days and is transferred into the uterus.
The transfer of one or more embryos at the blastocyst stage into the uterine cavity.
transfer of a more developed embryo. It usually requires five days from the time of insemination of the eggs to reach this stage. By allowing a longer observation period prior to transfer, the biologist may be able to better discriminate between healthy and unhealthy embryos.
The process in which embryos are transferred at day five of development instead of day three of development. This method increases the success rate and decreases the risk of multiple pregnancies.
Allowing in vitro fertilized embryos to reach blastocyst stage, usually 5 days, before transferring the embryos into the uterus.
