Abbigail and Isabelle Carlsen were separated in a seven-hour procedure that ended Saturday. The Mayo Clinic said that the babies were recovering well on Sunday, which is observed the United States as Mother's Day.
Surgeons described the separation as a success, with each girl having at least a 90-per-cent chance of longterm survival. A medical team of 70 people participated in the complex operation.
The girls were born on November 29, conjoined along the diaphragm, pancreas and liver, stuck in a position facing each other. They shared a bile duct and part of their intestines.
The girls were born in Fargo, North Dakota, which is west of Minnesota.
