![]() ![]() Options for building your family with help from donor sperm may include: Regardless of the type of donor chosen, various considerations and requirements apply. The type of donor one chooses is a highly personal decision, and will depend on any number of factors. Embryos can be transferred back to the uterus immediately. ![]() The procedure undefinedwarmsundefined the tissue in just 20 minutes, and it is placed back in the incubator at 37undefinedC in the laboratory. When our patients return to use their vitrified embryos, the vitrification procedure described above is reversed to allow warming back to room temperature for rehydration. Avoiding ice formation in this way successfully protects the embryos from damage and allows them to be warmed later, delivering embryo survival rates consistently above 90%. This high cooling rate, combined with the use of of cryoprotectants, allows the contents of the straw (embryos plus surrounding fluid) to turn into a glass-like substance instead of ice. The tiny straw will cool from room temperature (about 25undefinedC) to -196undefinedC in two to three seconds, giving a cooling rate of 4420-6630undefinedC per minute. Then, they are quickly loaded into straws and plunged into liquid nitrogen at a temperature of -196undefinedC. After 8 minutes in equilibration solution, the embryos are moved into a vitrification solution for 60 seconds. ![]() Embryos are removed from the incubator in the laboratory and exposed to an equilibration solution for 8 minutes to begin the dehydration process. A typical embryo vitrification protocol is complete in about 10 minutes. In practice, this means that eggs and embryos are vitrified very quickly in the laboratory. Third, the straws containing the eggs/embryos are cooled as fast as possible, typically at thousands of degrees per minute. Second, the eggs or embryos are loaded into tiny storage devices (usually straws) that will facilitate ultra-rapid cooling. First, embryos are exposed to high concentrations of cryoprotectants to allow rapid dehydration of cells. The process of vitrification has three critical components. This rapid cooling process prevents the formation of ice crystals, which can cause cell damage. The cryopreservation of embryos begins with undefinedvitrificationundefined or undefinedfreezing.undefined Vitrification is an ultra-rapid freezing process performed in our embryology laboratory, wherein the embryo is rapidly cooled to subzero temperatures. You may wish to freeze embryos to enable biopsy for PGT-A or PGT-M testing for chromosomal abnormalities, or you may simply need to freeze additional embryos created during your cycle for future single embryo transfer during a subsequent cycle. Whether you pursue a fresh or a frozen egg donation, you will have the option to cryopreserve (undefinedfreezeundefined) any embryos created during your cycle. Our donors are from all ethnicities, with varying physical characteristics, educational backgrounds and creative talents. We provide our patients with detailed information about each donor, including the medical, social, and family history, results of the donorundefineds psychological and genetic screenings, and donor photographs. Whether your choose to pursue a fresh or frozen egg donation cycle, our Donor Egg team will work with you to identify the best fit for your family. In a frozen egg donation cycle, the frozen eggs may be from a donor stimulated here at NYU Langone Fertility Center, or from a donor available through one of our egg bank partners: MyEggBank or Fairfax Egg Bank. This is different from a undefinedfrozen egg donation cycle,undefined where frozen eggs from a pre-screened, approved egg donor are thawed at NYU Langone Fertility Center, then fertilized with sperm from the intended parent or sperm donor. Once the egg retrieval procedure is complete, the donor eggs are immediately fertilized with sperm from the intended parent or sperm donor. In a undefinedfresh egg donation cycle,undefined a pre-screened and approved egg donor is stimulated here at NYU Langone Fertility Center. When it comes to donor egg services, you have options. Our dedicated in-house Donor Egg team assists patients, locally and internationally, with the selection of the right egg donor for each family. At NYU Langone Fertility Center, we maintain the highest level of discretion and support for both patients and donors. ![]() We understand that the decision to build your family with the help of an egg donor is both an emotional and a medical journey. ![]()
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