Type of IVF technology
IVF technology is a kind of assisted reproductive technology, which aims to help couples who cannot conceive naturally achieve their reproductive aspirations. IVF technology includes many types, each of which has its own characteristics and scope of application.
In vitro fertilization embryo transfer (IVF-ET)
In vitro fertilization embryo transfer (IVF-ET) is the most common IVF technology. The technology first collects mature eggs in vitro from women, and then combines eggs with sperm in the laboratory to form embryos. Mature embryos will be transferred back to the woman's uterus for a successful pregnancy. IVF-ET technology is applicable to a variety of infertility, such as fallopian tube obstruction, male sperm abnormalities, etc.
IVF-ET technology is relatively mature and has achieved widespread success. According to the report of the World Health Organization, there are about 3 million IVF babies born around the world, most of which are realized through IVF-ET technology. However, IVF-ET is risky and expensive, which may lead to complications such as multiple pregnancy and premature delivery.
Egg donation
Egg donation is a technique in which a woman donates her eggs to couples in need. Egg donation is usually applicable to women who cannot produce eggs naturally, such as women with ovarian insufficiency or elderly women. Egg donation requires in vitro fertilization embryo transfer technology, in which the fertilized embryos are transferred into the uterus of the woman receiving the donated eggs.
Egg donation technology is a test tube baby technology with high success rate, because the use of young and healthy eggs can improve the probability of successful implantation and pregnancy. However, there is an obvious problem with egg donation technology, that is, to find suitable women willing to donate eggs, which may be a challenge for some couples.
Embryo cryopreservation
Embryo cryopreservation technology is to freeze the remaining embryos for future use. When multiple embryos are produced by IVF-ET technology, you can choose to freeze some embryos for subsequent pregnancy. This technology can not only reduce the pressure in each IVF process, but also provide more opportunities for couples to achieve their reproductive aspirations.
The success rate of embryo cryopreservation technology is high, and frozen embryos can be preserved for a long time. This allows couples to be more flexible when carrying out multiple IVF cycles, and can reduce the cost and physical burden of each attempt.
Embryo cytogenetic diagnosis technology (PGD/PGS)
Embryonic cytogenetic diagnosis technology is a kind of technology that can detect the genetic abnormalities of embryos, providing the possibility to select healthy embryos for transplantation. This technology obtains embryonic cells for genetic analysis to determine whether there are genetic diseases or chromosomal abnormalities. PGD technology is applicable to couples with genetic diseases or older women.
PGD technology can reduce the risk of embryo carrying genetic diseases and improve the success rate of IVF pregnancy. However, this technology requires professional laboratory equipment and expert team, so it is only available in some specific hospitals and clinics.
summary
IVF-ET, egg donation, embryo cryopreservation and embryo cytogenetic diagnosis are the types of IVF-ET technology. Each technology has its scope of application and advantages. IVF-ET is the most common technology, which is applicable to a variety of infertility. The success rate of egg donation technology is high due to the use of young eggs; Embryo cryopreservation technology can provide more opportunities to try; Embryonic cytogenetic diagnosis technology can reduce the risk of genetic diseases. The selection of suitable IVF technology should be based on the specific conditions of the couple, including the cause of infertility, age and genetic disease carrier. Therefore, the guidance of clinicians and experts is very critical.
