Oocyte and embryo cryopreservation
O.L.G.A. Fertility Clinic has established the largest Cryobank of Donor Eggs in Russia. There are more than 1500 donor eggs form more than 100 egg donors at a time available at our bank to choose from. You can choose your donor yourself within our Chosen donor programme or our doctors will match a donor to you if you prefer our Matched donor programme. Every months more and more donors undergo stimulation and egg collection for our Cryobank of Donor Eggs.
Multiple studies have confirmed that the quality of egg after freezing via vitrification and thawing does not decrease. There is no increase in chromosome mistakes in the egg, no decrease in implantation and clinical pregnancy and life birth rates in comparison to fresh eggs. There is no risk of increase malformation rates in newborns either [1, 2, 3, 4].
Our results are in line with the literature data, as in 2012 we have had 63% clinical pregnancy rates with vitrified donor eggs and 62% clinical pregnancy rates with fresh donor eggs.
We have started egg vitrification at O.L.G.A. Fertility Clinic in 2008 after intensive training by Professor Kuwayama in Japan. Since 2008 we have frozen more than 2000 donor oocytes in open system. The first children conceived with vitrified donor eggs were born in 2010. Finally in the first half of 2012 we have obtained stably good results and feel ready to propose vitrified ED programme to our patients on the regular basis.
If you think of using frozen donor eggs for your fertility treatment, please request a phone consultation with our doctor to evaluate your medical situation and help you to choose the right treatment option.
- Eric J. Forman, M.D., Xinying Li, Ph.D.,a Kathleen M. Ferry, B.S., Katherine Scott, M.S., Nathan R. Treff, Ph.D., Richard T. Scott Jr., M.D.(2012) Oocyte vitrification does not increase the risk of embryonic aneuploidy or diminish the implantation potential of blastocysts created after intracytoplasmic sperm injection a novel, paired randomized controlled trial using DNA fingerprinting. Fertility and Sterility Vol. 98, No. 3, September 2012
- Chen C. (1986) "Pregnancy after human oocyte cryopreservation". Lancet 1 (8486): 884-886. Retrieved on April 24, 2007
- Jain, J. et al. (2005) "Oocyte cryopreservation". Fertility and Sterility 86 (4): 1037-1046. Retrieved on April 24, 2007
- Grifo J and Noyes N. (2010) Delivery rate using cryopreserved oocytes is comparable to conventional in vitro fertilization using fresh oocytes: potential fertility preservation for female cancer patients. Fertility and Sterility 93:391-396.
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