Women can preserve their fertility through a technique that ensures good oocyte survival rates for future use – vitrification. By this method, the harvested oocytes are cooled rapidly to a temperature of -196 ° C, which prevents the formation of ice crystals, responsible for damaging the cell after thawing.
In order to apply this technique, women must undergo ovarian stimulation and follicular puncture. This may be a fertility-preserving option for cancer patients undergoing chemotherapy treatments.
Ovocyte vitrification can also be used in women who undergo stimulation to obtain a high number of good-quality oocytes, using part of the IVF or ICSI technique and cryopreserving the remaining oocytes. This technique can also be used by healthy women who, for whatever reason, wish to delay maternity.