Cryopreservation is a medical tag for the semen freezing. It is a special technique of male gametes cryoconservation with following cryopreservation. It makes possible such things as delayed parenthood, fertility preservation before cancer treatment therapy, simplified process of repeated IVF programs (if the first treatment cycle failed), as well as to achieve the repeated pregnancies.
Vitrification is a modern, specific secure method of freezing cells. It allows to preserve oocytes, which were obtained as a result of puncture. Vitrificated oocytes could be used for multiple IVF programs without re-stimulation of ovulation and operative extraction of the follicles. Vitrification of oocytes up to 30 years is considered as the "insurance" of infertility since it makes possible postponed successful motherhood in the late reproductive age.
It can happen that in a result of fertilization, there are formed multiple life-promising and simply perspective embryos. If those embryos are not planned to be transferred during the ongoing IVF program treatment, it is recommended to make a cryopreservation of potent embryos, or simply freeze them. In the future, they can be used to achieve the repeated pregnancies, as well as to simplify the next treatment protocol.
Vitrification of ovarian tissues is a great breakthrough in modern medicine. The technique makes it possible to preserve fertility for patients with oncologies when there is no time to procced with ovulation stimulation and follicle puncture. Tissue autotransplantation after cancer treatment therapy back into woman's body results in restoration of the whole hormonal system with normal menstruation and ovulation.
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