It is obligatory that a successful IVF centre has a successful embryo and gamet freezing program to protect all embryos obtained, and it provides patients with significant advantages and new pregnancy chances. In the presence of good quality embryos after transferring 1 or 2 embryos to you in embryo transfer, these embryos can be thawed and transferred back to you if you are frozen and stored and you can’t conceive or want children again in the future. Sometimes embryo freezing is needed for medical reasons; In cases where the risk of severe OHSS is high, or when problems occur in the endometrium that may prevent pregnancy, such as bleeding, polyps, etc. during transfer, or in patients who will receive chemotherapy for cancer treatment, all embryos may need to be frozen and stored. Freezing can be done early (prezigot) or later (at embryo or blastocyst stage). Embryos frozen by special programmable tools or preferably by vitrification method can be protected in liquid nitrogen in special tanks for years.
There is no need to develop eggs and collect eggs in cycles where frozen embryos are dissolved and used. Frozen embryos can be prepared with some hormones intrauterine for successful transfer, or embryo transfer can be done by determining the appropriate day in women who ovulation regularly. There is no difference between the two methods in terms of pregnancy success. The transfer process is carried out in the same way as the transfer of un-frozen embryos.
In successful centers, it is possible to achieve a similar or even higher rate of pregnancy to the one in fresh transfer with embryo freezing. Thus, it will provide additional advantages such as reuse of drugs to develop eggs, egg collection and anesthesia procedures, as well as the fact that the expensive and long IVF process is not repeated and economical. It will also prevent multi-embryo transfer, preventing multiple pregnancies and creating a very important opportunity for you to have a single living child. To date, there has been no increase in miscarriage and congenital abnormality rates in pregnancies obtained from frozen embryos. Frozen thawed embryo transfer in our country was obtained by our first pregnancy team.
Furthermore, freezing and storing sperm obtained by various surgical methods, especially in men, will prevent the man from undergoing the same surgical procedures and encountering possible risks with each new trial.