LONDON – In a medical first, a woman in Sweden has given birth after receiving a womb transplant, the doctor who performed the pioneering procedure said Friday.
The 36-year-old mother received a uterus from a close family friend last year. Her baby boy was born prematurely but healthy last month, and mother and child are now at home and doing well. The identities of the woman and her husband were not disclosed.
“The baby is fantastic,” said Dr. Mats Brannstrom, a professor of obstetrics and gynecology at the University of Gothenburg and Stockholm IVF who led the research and delivered the baby with the help of his wife, a midwife. “But it is even better to see the joy in the parents and how happy he made them.”
The feat opens up a new but still experimental alternative for some of the thousands of women each year who are unable to have children because they lost a uterus to cancer or were born without one. Before this case proved the concept can work, some experts had questioned whether a transplanted womb would be able to nourish a fetus.
Others have questioned whether such an extreme step – expensive and fraught with medical risks – would even be a realistic option for many women.
Brannstrom and colleagues transplanted wombs into nine women over the last two years as part of a study, but complications forced removal of two of the organs. Earlier this year, Brannstrom began transferring embryos into the seven other women. He said there are two other pregnancies at least 25 weeks along.
Before these cases, there had been two attempts to transplant a womb – in Saudi Arabia and Turkey – but no live births resulted.
The Swedish woman had healthy ovaries, but she was born without a uterus – a syndrome seen in one girl in 4,500. She received a uterus from a 61-year-old family friend who had gone through menopause after giving birth to two children.
Brannstrom said he was surprised such an old uterus was so successful, but that the most important factor seemed to be that the womb was healthy.
The recipient has had to take three medicines to prevent her body from rejecting the new organ. About six weeks after the transplant, she got her menstrual period – a sign the womb was healthy.
After one year, when doctors were confident the womb was working well, they transferred a single embryo created in a lab dish using the woman’s eggs and her husband’s sperm.
The baby’s growth and blood flow to the womb and umbilical cord were normal until the 31st week of pregnancy, when the mother developed a dangerous high-blood-pressure condition called preeclampsia.
After an abnormal fetal heart rate was detected, the baby was delivered by cesarean section. He weighed 3.9 pounds – normal for that stage of pregnancy. Full gestation is about 40 weeks. The baby was released from the neonatal unit 10 days after birth.
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