What Is Embryo Cryopreservation?
Embryo freezing is to put embryos and frozen liquid into freezing tubes. After slow cooling (embryo on day 2-3) and fast (blastocyst on day 5-6), two methods of cooling can be used to keep the embryos at rest and -196 degrees of liquid nitrogen preservation method.
Embryo freezing
Right!
- Chinese name
- Embryo freezing
- Cooling method
- Slow and fast
- Save
- -196 degrees of liquid nitrogen
- Advantage
- Reduce multiple pregnancy rates
- Embryo freezing is to put embryos and frozen liquid into freezing tubes. After slow cooling (embryo on day 2-3) and fast (blastocyst on day 5-6), two methods of cooling can be used to keep the embryos at rest and -196 degrees of liquid nitrogen preservation method.
- If there are leftover embryos of good quality, they can be stored frozen, and will be implanted in the uterine cavity after thawing in the natural or artificial cycle, which will increase the chance of conception [1]
- 1. Reasonably limit the number of embryos to be transferred and reduce the rate of multiple pregnancy.
- 2. Provide re-transplantation opportunities for patients with failed embryo transfer or abortion.
- 3. When there are signs of ovarian hyperstimulation syndrome in the superovulation cycle, cancel the embryo transfer, freeze the embryos, and perform frozen embryo transfer in the non-stimulation cycle thereafter. [2]
- It plays an important role in increasing the cumulative pregnancy rate, reducing patient costs, and preventing ovarian hyperstimulation, and has become an important part of assisted reproduction technology.