Conjoined Bhutanese twins undergo separation surgery
The girls are joined at the torso and share a liver and possibly a bowel, their doctor said, adding "our challenge will be to reconstruct their abdominal walls to close it over", the BBC reported.
"What we will be looking for is simply what bits actually connect the two girls together," lead surgeon Joe Crameri told reporters on Friday.
He said they would separate the liver, but there was one "unknown" --whether the girls shared a bowel. If it was, it would also be divided, he said.
Nima and Dawa face each other, and cannot sit down together. They can stand if they do so at the same time, the BBC said.
About 18 specialists in two teams, one for each girl, are taking part in the procedure at Melbourne's Royal Children's Hospital. The surgery is expected to last at least six hours.
However, it was postponed so the girls could improve their nutrition. Doctors said they were confident the twins were now ready for the operation.
Their mother was feeling "a little bit scared" about the procedure, but had shown "extraordinary calmness" so far, the BBC quoted Elizabeth Lodge from the charity as saying.
Zangmo would spend the day praying and meditating, she added.
The state of Victoria has offered to cover the $255,000 cost of the operation.
Conjoined twins are very rare -- it is thought one in every 200,000 births -- and around 40-60 per cent of these births are delivered stillborn.
Only a few separations are carried out around the world each year.
In 2009, the same hospital performed a successful operation to separate Bangladeshi conjoined twins -- Trishna and Krishna, who were joined at the head. They underwent a life-saving 32-hour long surgery.
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