The parents of Erin and Abby Delaney are grateful that their two daughters are thriving. Born as related twins, her condition was among the rarest of the rare. Now doctors are giving an update on the girls' extraordinary journey.
"They are growing and changing and are amazing little people, and I can say that they are really my heroes for what they went through," Heather Delaney told CBS News.
The sisters were born, put together at the top, and even more seldom did they completely fuse with their compound deep into the brain tissue. In June 201
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"Around the age of 3 months we parted the bone that bound the two twins, and then we slowly squeezed them apart and changed the anatomy where the two were joined together and then made the separation possible. Gregory Heuer from the Children's Hospital of Philadelphia.
A New Report in the New The England Journal of Medicine details how physicians used innovative technologies and teamwork to perform complex separation operations. A computer navigation system helped them map the connected blood vessels that had to be shared between the twins.
"The hardest part for these girls was that they shared some really important big blood vessels so they could separate them from each other. After the brain recovered after the breakup, it really was the hardest part," said Heuer.
The girls are among the youngest twins who have joined together at the top to be separated successfully.
Now Erin and Abby, two years old, are now receiving physical, occupational and speech therapy to support their development. In the next few years, the sisters will need additional surgery to close the openings in the skulls.
"Some of the things they did have never been done before, so we did not know how it would work." Heather Delaney said. "Fortunately, everything has become incredible, we have a miracle, little girls, we can show."