The first baby born as a result of a uterus transplant in the United States is in the neonatal unit at Baylor University Medical Center in Dallas. (Baylor University Medical Center via AP)
For women with uterine factor infertility who wish to become mothers, the calculation has always been heartbreakingly simple: No uterus means no pregnancy.
The equation changed drastically in 2014, when
Socical doctors missed a healthy 39-gram baby that was the result of a successful succession transplant  Now, doctors at Baylor University say that a woman who was born without a uterus gave birth after a successful transplant, the first time she has worked outside the Swedish hospital that was a pioneer in the procedure.
Success marked another step in transplant surgery that aims to improve a person's life, not just save it. Doctors have performed penile transplants for wounded troops, gave a child two new hands and gave a new nose, lips, palate, eyelids and jaw to a horribly disfigured woman after being shot in the face.
the success of the transplant of uterus in Sweden can be replicated is a promising sign for thousands of women who have not been able to conceive. And Baylor doctors have tried to extend the limits of the procedure, using donated uteri that do not come from family members and, in some cases, organs that come from corpses.
"To make the field grow and expand and have the procedure apply to more women, it has to be reproduced," said Liza Johannesson, a uterus transplant surgeon who left the Swedish team to join the Baylor group, He told the New York Times. "It was a very exciting birth, I've seen so many births and given birth to so many babies, but this was a very special one."
The Baylor clinical trial was designed to include 10 women. Eight, including the new mother, have received the transplants so far. One recipient is pregnant and two are trying to conceive. Four others had transplants that failed and the organs had to be surgically removed.
[A 2-year-old kidney transplant was put on hold – after his donor father's probation violation]
The surgeries differ from other transplants in an important way: they are not intended to be permanent. Instead, they give a woman enough time to conceive a child. In vitro fertilized ovules are transferred to the woman's uterus and, once the baby is born, the uterus is removed by surgery.
That means that the patient does not have to spend his whole life taking powerful drugs that inhibit his immune system, which would put him at risk for dangerous complications in the long term.
The university has not divulged the names of the mother or the baby, saying that they chose to remain anonymous.
But according to Tech Times, the donor's uterus came from Taylor Siler, a Dallas nurse who has two children. He said he wanted to offer another woman the opportunity to give birth.
While this most recent birth is a step forward, uterine transplant surgery is still in its infancy, and doctors admitted that there were setbacks, particularly with the first volunteers.
In February 2016, Lindsey McFarland became the first woman to receive a uterus transplant in the United States. The organ came from a dead donor and was implanted during a nine-hour surgery.
His story gave an idea of how tenuous the incipient surgery is. She had to remove her uterus after contracting a fungal infection.
According to Newsweek, the majority of women in the Baylor trial had Mayer-Rokitansky-Küster-Hauser syndrome (MRKH), which makes pregnancy and childbirth impossible.
And for most of their lives, many had been told they could not have children.
"We do transplants all day," Giuliano Tesla, who directs the clinical trial of uterus transplantation at Baylor University Medical Center, told Time magazine. "This is not the same, I totally underestimated what this type of transplants does for these women, what I have learned emotionally, I have no words to describe"
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