PROST is similar to ZIFT in the sense that fertilization takes place in the laboratory and then the fertilized egg is transferred to the fallopian tubes. The difference is that PROST transfers the fertilized egg before cell division happens.
4. Frozen Embryo Transfer (FET)
The procedure involves transferring thawed (previously frozen) embryos from the lab into a woman’s uterus.
Usually, couples take advantage of this assisted reproductive technology when their past IVF treatment produced more than one healthy embryo. As couples only need one, the rest of the healthy fertilized eggs can be frozen for future cycles (should they decide to get pregnant again).
FET appears to be as safe as transferring fresh fertilized eggs. However, some evidence suggests that it increases the risk of preterm birth.
The 4 reproductive artificial technologies are in vitro fertilization (IVF), intracytoplasmic sperm injection (ICSI), intrafallopian transfer (IFT), and frozen embryo transfer (FET). The general idea here is to transfer the gametes or fertilized egg to either the fallopian tube or uterus, increasing the woman’s chances of getting pregnant. Note that there is also Third-Party ART, where someone else donates egg and sperm cells or another woman carries the baby (surrogacy).
However, in the Philippines, the most common ART is in vitro fertilization. But even this can be too expensive for many couples, particularly after they’ve exhausted their financial resources to other fertility treatments.