What is embryo vitrification?
It is a novel technique to preserve embryos. It consists of an ultrafast freeze. In a few seconds and using cryoprotective substances, embryos are vitrified, avoiding the formation of ice crystals that can damage the cells.
When do we vitrify embryos?
- After a cycle of assisted reproduction, we vitrify the embryos that are not transferred to the patient’s uterus.
- When we carry out a preimplantation genetic study.
- When there is an endometrial cause.
Does this technique have good results?
Approximately 97% of vitrified embryos survive the process. Pregnancy rates with embryos that have been previously vitrified are practically comparable to fresh transfers.