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A woman gave birth to her second boy this week in China, who is believed to be the longest preserved tube baby in China -all thanks to a frozen-thawed embryo transfer cycle with an embryo frozen for 12 years. The mother has suffered from polycystic ovary syndrome and blocked fallopian tubes, which obstructed her chances of natural conception.
She attempted a pregnancy through an in vitro fertilization process that combined her eggs and her husband’s sperms and then an embryo transfer (IVF-ET) procedure in August, 2003, in Tangdu Hospital of Xi’an city.
With two embryos transferred to her uterus, Li conceived and delivered a 2.9-kilogram healthy baby boy the next year. The leftover embryos were cryopreserved through the slow programmable freezing (SPF) method.
After China scrapped its one-child policy in 2015, Li visited the hospital again, in the hope of expecting another baby.
The doctors revived three out of the seven frozen embryos, and Li conceived again after an embryo transfer procedure. She delivered a healthy baby weighing 3.4 kilograms through caesarean section on February 24.
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After China scrapped its one-child policy in 2015, Li visited the hospital again, in the hope of expecting another baby.
The doctors revived three out of the seven frozen embryos, and Li conceived again after an embryo transfer procedure. She delivered a healthy baby weighing 3.4 kilograms through caesarean section on February 24.
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