Cryopreservation is a method that has been developed for long term storage of cells and tissues and their subsequent use.
It is possible to cryopreserve embryos, oocytes(eggs), semen and ovarian or testicular tissue in liquid nitrogen.There are two methods of freezing that can be used – slow programmable freezing and flash-freezing process known as Vitrification.
Embryo freezing: slow freezing is not being used now
Spare embryos or eggs of good quality can be frozen and stored for future use. In case of failed IVF treatment in the first cycle, these preserved eggs offer a second chance of success without the need for ovarian stimulation and egg collection. The freeze method we use is called vitrification.
Vitrification : is the thecnique that has changed the face of cryopreservation
Vitrification is an ultra rapid embryo freezing method.Vitrification is a process of converting something into glass like solid free of any crystal formation.Like for blastocyst, by adding cryoprotectant,water can be cooled until it hardens like glass with out any ice crystals forming.
We have been using vitrification for a number of years and believe its a superior method of freezing with our own results showing significant improvements in pregnancy outcomes.