Freezing / Vitrification of eggs (oocytes) in Lviv
Oocyte cryopreservation has become a real breakthrough in embryology and reproductive technology, because egg freezing is a much more complicated process than freezing embryos.
First, the oocyte is a very large cell with waterproof outer layers, that is why cryoprotectants with difficulty penetrate the plasma membrane.
Secondly, the genetic information in the egg – the spindle of division – is very sensitive to the effects of low temperatures, which can lead to disruption of the chromosomes in the division of the oocyte after thawing, that is genetic pathologies. However, the birth of thousands of healthy babies in the world and the optimization of freezing (vitrification) methods, thawing, fertilization and culturing of eggs in special nutrient medium allows us today to create oocyte banks and solve a number of pressing medical, legal and religious problems.
Indications for use:
Healthy socially active women have the opportunity to freeze “young” oocytes for the future when they want to have children. It is a kind of “insurance system” for couples who delay the birth of their first offspring after the 30-year limit. Numerous studies have shown that the age of a woman at the time of embryo transfer does not play a leading role, but an important factor is the age of the patient at the time of aspiration and freezing of eggs.
Women suffering from endometriosis due to the progression of pathology, which eventually leads to impaired ovarian function.
Women with advanced oncology pathologies who are preparing for chemotherapy and radiation therapy that adversely affect reproductive health. Cancer cells can be very sensitive to stimulant drugs, so before undergoing stimulation, the oncologist should give permission to use hormonal drugs.
Oocyte freezing for other medical reasons.
Oocyte freezing during IVF infertility treatment (in vitro fertilization) when more eggs were obtained than sperm, including for couples who, by religious belief, do not permit fertilization of more than two eggs in a single cycle (then the remaining eggs are obtained ).
Creation of a cryobank for oocyte donation programs.