Conjoined Twins Successfully Separated

In this photo provided by the Mayo Clinic, Suzy Fitterer, of Bismarck, N.D., holds her five-month-old conjoined twin daughters Abygail and Madysen, who are joined at the chest, before they were taken to the operating room for separation surgery at the Mayo Clinic, Wednesday, Jan. 3, 2007, in Rochester, Minn. AP Photo/John Lemanski

Doctors successfully separated 5-month-old conjoined twins from North Dakota during a six-hour procedure Wednesday at the Mayo Clinic.

Abygail and Madysen Fitterer, who were born joined at the chest, "did exceptionally well," said lead surgeon Dr. Christopher Moir.

"It has been a very emotional day but it has been a flawless operation," Moir said following the procedure. "Everything went exactly as we had hoped, and exactly as we had planned."

"This is Day 99 of their hospital stay," Moir said. "It is also Day 1 of their beautiful, separate lives."

The girls' parents, who live in Bismarck, N.D., were grateful to the team of about 40 involved in the surgery and Mayo staff. Suzy Fitterer said, "I don't know how you thank people for giving not one, but two of your children a chance at normal life."

The twins have been at Mayo since doctors implanted tissue expanders in October to slowly stretch the girls' skin enough to close their incisions from the separation surgery.

Moir said the girls provided "some exciting moments" during the surgery. Those tense moments included placing the girls' hearts into their respective chests, particularly because half of Madysen's heart projected into Abygail's chest.

Doctors said the most difficult part of the procedure was separating and reconstructing the girls' chest walls and closing their chests over their hearts. Moir said the girls shared one liver that, fortunately, had two drainage systems. He also was pleased to report that they didn't share any intestines, which doctors had initially feared.

Moir said he expects the girls to spend at least a few weeks in intensive care.

The Fitterers were Mayo's fifth separation of conjoined twins, including two last year. According to Mayo, conjoined twins may develop in as many as one in 50,000 pregnancies, but they account for only one in about 250,000 live births.
  • David Morgan

    David Morgan is a senior editor at CBSNews.com and cbssundaymorning.com.

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