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Embryo Cryopreservation

embriyo dondurma

Embryo freezing” or “embryo cryopreservation” is the process of preserving embryos by freezing and storing them with special techniques in order to be able to use the best-quality ones in the future.

Embryo cryopreservation process, which provides safe storage of the ovaries when they become healthy, can be performed on request or in case of need.  Embryo cryopreservation can be carried out with the purposes of reducing the risk of multiple pregnancies during in vitro fertilization treatment, finding the opportunity of a new trial without hormone therapy after failure of new embryo transfer, reducing cost of IVF treatment and increasing the chance of pregnancy and it can be applied if;

  • Women are at risk of ovarian hyperstimulation syndrome (OHSS),
  • The endometrial tissue does not develop at an ideal rate,
  • Intrauterine surgery is not performed and
  • Cancer treatment is not initiated.

How To Perform Embryo Cryopreservation?

The main purpose of embryo cryopreservation process is to store high quality embryos in a way that can be used in the future and create a healthy pregnancy. But, there is a problem at this point; freezing of the water in the cells can lead to crystal formation and cell disruption. Binding agents called “cryoprotectant” are added instead of the water in the embryo cells to prevent crystallization in the embryo cryopreservation process. Thus, the cryoprotectant is replaced with water in the cell. Embryo cryopreservation process is performed after the most appropriate method is determined for the treating person among slow freezing or vitrification methods. Frozen embryos are kept in liquid nitrogen tanks until their day of use.

How Long Are Frozen Embryos Stored?

Technically, the frozen embryos stored in liquid nitrogen tanks at -196 degrees can be stored for a long time. However, the storage time of the frozen embryos is limited to 5 years in our country.

According to the World Health Organization definitions, despite the unprotected sexual intercourse during the 12 ovulation periods, the condition of not being pregnant is defined as “infertility“, that is, “sterility“. We, as KADOMER, carry out detailed controls of patients who consult us on suspicion of infertility and manages the processes of infertility follow-up; we apply the most appropriate assisted reproductive techniques in accordance with the age and general health status of our patients.