Cryopreservation is a process in which cells or tissues are cooled to sub-zero temperature for embryo preservation. During the IVF infertility treatment, one or more embryos are developed. From this only one embryo are transferred and implanted into the uterine cavity. The rest of the embryos are preserved for future use. At Hegde infertility, our infertility specialist retrieves one or more eggs during the ovulation and fertilizes the egg with the sperm. During the embryo transfer and implantation, only one embryo is transferred to avoid the chances for multiple pregnancies. The remaining embryos are preserved in cryopreservation technique without any damage. This process is helpful if in case the treatment was unsuccessful, then the patients do not have to undergo the full treatment course. Instead the infertility specialist takes one of the preserved embryos and implants them into the uterine cavity at optimum time.
Embryo Cryo Preservation procedure
Cryopreservation techniques are performed at sub zero temperature usually at -196 degrees. This prevents the enzymatic activity and biochemical reactions which occur in a cell that leads to damage of the cells or tissues.
Methods of Embryo Cryo Preservation
There are two basic Cryopreservation techniques as discussed below:
Controlled slow-rate cooling protocol: In this method high concentration of cryoprotectant is used and the entire process of cooling is done at a very slow rate. Embryos that have reached day 2 and 3 are preserved using this protocol of cryopreservation.
Ultra-rapid Flash Freezing Protocol: This method of preservation also using high concentration of cyroprotectant but the cooling process is done at a very fast rate. The embryos are directly place into liquid nitrogen. In this method of preservation embryos that are at days 2 and more and blastocysts are also used. This procedure is also known as Vitrification.
Benefits of Embryo Cryo Preservation
1. Storage of embryos: During the IVF treatment one or more eggs that are retrieved and fertilized can be stored using this process. This method of preservation helps the patients to limit the number of embryos implanted at a time and also enables for future use in the treatment cycle
2. Avoidance of Medications: Preservation of embryos helps he patients to reduce the intake of ovulation stimulation meditations to collect fresh batch of eggs for repeated cycle of treatments.
3. Lower Cost: As there are enough number of embryos preserved the patient do not have to undergo the entire IVF treatment again thus making it cost effective.
In Cryopreservation method, there are chances for the crystallization and damage of the tissues. This risk are negligible in Vitrification technique as cooling is completed at a faster rate. However the post thaw survival rate of embryos is more in slow cooling process compared to fast freezing technique.
Hegde Fertility, IUI center has the best of the cryopreservation program in place under a team of well experiences infertility specialists. To know more about it, contact our reputed fertility centre in Hyderabad, which offers the most affordable cryo preservation cost in India. Book an Appointment now!