The cold vitrification provides women with a chance to freeze their own eggs when they are still young, preserve their fertility, and mitigate the risks for miscarriage associated with the “age of eggs” as well as for birth defects.
The radiotherapy, chemotherapy and surgery, they are all may destruct women’s eggs and result in infertility. Depending on the type of treated cancers, egg freezing may be an option that provides a women having cancer with an opportunity to preserve fertility before treatment starts.
The main fertility problems related to age are associated with reduced quality and quantity of eggs as women get older; however, eggs of a women can be preserved without damaging them and stored up to 10 years without affecting quality of eggs since specific vitrification technique has been developed.
How does egg freezing work? The egg freezing, formally known as “oocyte cryopreservation”, is a three-stage protocol: Stimulation of ovaries: The first step in a typical egg freezing protocol is a process of fertility drugs to stimulate ovaries.
Egg retrieval: This is an outpatient procedure that is performed under a mild sedation, therefore no pain will be felt.
Freezing: Immediately after eggs are harvested (picked up), they are transferred to the laboratory where they are immediately cooled to subzero temperatures.
You can freeze your eggs at any time when you are still at child-bearing age; however, the younger you are the better the outcome is. Fertility is gradually reduced, but shows a sharp decrease at 25 years of age and continues to decrease until menopause. As you get old, the chance to achieve a pregnancy with frozen eggs is also decreased. If you freeze your eggs at the beginning of your thirties, your chance to get pregnant with these eggs would be 40% to 50%. If you wait until the end of your thirties, this rate would range from 20% to 15%.