A significant part of successful IVF treatment, fertility preservation and egg donation is freezing or banking. Being able to freeze eggs and embryos allows women to extend their fertility. Additionally, this capability also allows woman to store embryos for use during subsequent cycles and limits the number of retrievals that are needed.
Vitrification is the science of flash freezing eggs and embryos in a way that prevents the formation of ice crystals. Ice crystals can be severely damaging to sperm, embryos and oocytes (eggs). By avoiding the formation of ice crystals, we are able to achieve better results. During the freezing process, the eggs or embryo are brought from a temperature of 98.6 degrees Fahrenheit to -320 degrees Fahrenheit in an instant.
When an egg is frozen with vitrification:
- A cryoprotectant is added to the egg to remove water. The absence of water means ice crystals are unable to form.
- The egg is stored in its frozen state.
- When thawed, water is added back to the egg and the cryoprotectant is removed.
This process of adding and removing the cryoprotectant does not harm the egg. In fact, using this method as opposed to traditional freezing methods substantially increases survival rates for thawed eggs.
Survival rates for thawed eggs:
Traditional freezing methods – 55 percent survival rate
Vitrification freezing method – 98 percent survival rate
Positive results using this state of the art freezing technology may also be seen in our success rates for using previously frozen donor embryos is 64.2 percent as reported by SART, the Society for Assisted Reproductive Technology.
For additional information on how vitrification can create positive results or to speak with a physician to discuss a customized fertility plan, contact us. Please click the link below to enter your information and New Hope will contact you, or simply call 212-517-7676. Thank You.