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Egg Donor Profiles | Oocytes Retrieval | Oocyte Cryopreservation

Egg Donors and Prodedures
Oocyte Cryopreservation and the Development of Frozen Human "Egg Banks"

Recent advances in the In Vitro Fertilization process have now allowed us to successfully freeze, store and later thaw and fertilize cryopreserved human eggs. This new advance in the field of assisted reproductive technologies provides yet another valuable tool to aid in the management of couples struggling to overcome problems with infertility. While we have enjoyed excellent pregnancy rates for some time utilizing frozen and later thawed human embryos, our new ability to store unfertilized human eggs allows many new techniques and resources to be developed.

Employing techniques developed from years of worldwide cryobiology research, our team and others are now reporting the successful cryopreservation and subsequent thaw and fertilization of human oocytes, followed by the successful establishment of healthy human pregnancy. Employing intracytoplasmic sperm injection (ICSI) to aid the fertilization of frozen oocytes, a 50% oocyte survival rate, an 80% fertilization rate and a 37% embryo development rate is obtainable.

As a result, we are now able to offer on a limited basis, the availability of frozen donor eggs from healthy, screened and tested donors to infertility patients that may benefit from this service. The group of patients likely to utilize such donated oocytes include those women with premature ovarian failure, women over age 40 who have been unsuccessful in their attempts to become pregnant with their own gametes, patients with genetically transmissible conditions, post oophrectomy patients, women with Turner's syndrome and those whose oocytes have been depleted following chemo or radiation therapy.

In addition, our increasing ability to successfully cryopreserve oocytes allows us to now offer the option of oocyte freezing and storage to women concerned about preserving their own fertility. This may be a viable option for women facing premature loss of their ovaries or their ovarian function or for women concerned about advancing age and it's effect on their reproductive potential. Harvesting and cryopreservation of eggs may also be considered by women dealing with cervical, endometrial and breast cancer, as well as those facing systemic chemotherapy or other therapy thought to be a threat to reproductive potential.

The future indeed looks bright for the cryopreservation of reproductive potential in women at the Fertility Institutes.

Several of our "fresh" oocyte donors have provided eggs that have been frozen for later selection by recipients.

Oocytes Retrieval  


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