The freezing technique was the available method for cryopreserving embryos prior to the emergence of vitrification. Survival rates were not good due to the formation of ice crystals.
Vitrification, on the other hand, involves the use of a high concentration of cryoprotectants and ultra-rapid cooling, which prevents the formation of these ice crystals.
You can find more information about slow freezing and vitrification in this article: Cryopreservation & Vitrification of Embryos, Sperm & Eggs.
Read the full article on: What is embryo vitrification? How and when is this procedure used? ( 56).
Silvia Azaña Gutiérrez
B.Sc., M.Sc.
Graduate in Health Biology from the University of Alcalá and specialized in Clinical Genetics from the same university. Master in Assisted Reproduction by the University of Valencia in collaboration with IVI clinics.
License: 3435-CV
