The world’s first baby born from an automated vitrified egg, preserved by cryopreservation, came to the world in a clinic in Barcelona, Spain.
The baby was born on September 29 completely healthy, with 2.2 kilograms of weight and 46 centimeters of height, by normal delivery after 37 weeks of gestation, informed the Reproductive Medicine Service of the clinic Dexeus Mujer, whose experts managed to make this advance assisted reproduction.
Glazing is an ultra-fast cryopreservation system that reduces the time and risk of ice crystal formation, and could only be done manually up to now.
“This birth confirms the viability of this new technology, which has been on the market for only a year and is currently only incorporated by some hospitals,” explained the head of the Biology Section of the Reproductive Medicine Service of the Barcelona clinic, Montse Boada. and assisted reproduction clinics from around the world. ”
The head of the cryopreservation laboratory at the clinic, Miquel Solé, explained that “vitrification is an ultra-fast cryopreservation system that reduces the time and risk of ice crystal formation, offering a high survival rate after devitrification. of oocytes, currently around 85%. ”
The first time successful embryo cryopreservation occurred in 1983, but the introduction of oocyte cryopreservation into the clinical application only occurred in 2005.
So far, the vitrification process has always been done manually, so that the person in charge of preparing the samples and performing the different steps of vitrification until their storage in liquid nitrogen at -196ºC should be a specialist embryologist.
“It’s a job in which you have to be very strict and experienced to have a good result,” said Solé.
The novelty of this new system, called GAVI, is that it allows the exposure of the biological material, in this case, the oocytes, to the cryoprotectants to occur in an automated way and in a hermetically sealed device, avoiding the direct contact of the oocytes with the liquid nitrogen.
“The automation of the GAVI system reduces the possible risk of contamination and minimizes the small variations that may occur in manual protocols.” Reproductive Medicine of Dexeus Woman.