Twins born from the world’s oldest frozen embryos

In the United States, twins were born from frozen embryos thirty years ago. The birth represented a new recordconsidering that these are the older cryopreserved embryos that have resulted in a live birth for which there is a record.

The babies are named Lydia and Timothy Ridgeway, and were born on October 31 in the bosom of a family from the city of Portland, in the state of Oregon. Nevertheless, her pregnancy occurred much earlier, on April 22, 1992after an anonymous married couple will freeze them via in vitro fertilizationeither. “There’s something amazing about it,” the father declared shortly after the birth.

“In some way, They are our oldest children, although they are our youngest children.“Commented Philip, the father of the newborns, shortly after birth. In dialogue with CNN, he added that he himself was five years old when the embryos were gestated and since then cryopreserved. “There’s something amazing about it,” she added.

Babies born from frozen embryos 30 years ago

Regarding the idea of ​​gestating frozen embryos, the couple, of strong religious tradition, recounted that experts recommend you transfer one frozen embryo at a time to avoid risks adjacent to the gestation of two embryos but decided that they would try to gestate all three. “I have to have them all,” said Rachel, the surrogate and new mother of the twins.

That was how the three embryos were implanted in Rachel’s uterus on March 2, 29 years and 10 months after being frozen. The success of the pregnancy is a paradigmatic case in line with the average probability (between 25% and 40%) of frozen embryo transfers of resulting in a live birth.

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“We were not looking to obtain the embryos that have been frozen for the longest time in the world,” said Philip, and clarified that with his partner only they limited themselves to looking for those who had been waiting “longer”. To that end, they reviewed the donor’s database, which includes information such as ethnicity, age, height, weight, genetic and health history, as well as music and movie preferences.

The Ridgeways have four other children, ages 8, 6, 3 and nearly 2, none conceived through assisted or donor fertilization.

Meanwhile, the embryos were created for an anonymous married couple via in vitro fertilization and frozen on April 22, 1992. The biological father was in his early 50s and created the embryo together with a 34-year-old egg donor. Since then, for thirty years the embryos have been cryopreserved in a suspension of liquid nitrogen at almost 200 degrees below zero.

As it turned out, the couple decided not to gestate the embryos, so they donated them to the National Embryo Donation Center in the city of Knoxville, Tennessee.

Source: Profile

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