Warren said he hopes the family can bring Hannah home for the first time in a month or so. Hannah turns 3 in August.
"It's going to be amazing for us to finally be together as a family of four," he said. The couple has an older daughter.
Only about one in 50,000 children worldwide are born with the windpipe defect. The stem-cell technique has been used to make other body parts besides windpipes and holds promise for treating other birth defects and childhood diseases, her doctors said.
The operation brought together an Italian surgeon based in Sweden who pioneered the technique, a pediatric surgeon at Children's Hospital of Illinois in Peoria who met Hannah's family while on a business trip to South Korea, and Hannah — born to a Newfoundland man and Korean woman who married after he moved to that country to teach English.
Hannah's parents had read about Dr. Paolo Macchiarini's success using stem-cell based tracheas but couldn't afford to pay for the operation at his center, the Karolinska Institute in Stockholm. So Dr. Mark Holterman helped the family arrange to have the procedure at his Peoria hospital, bringing in Macchiarini to lead the operation. Children's Hospital waived the cost, likely hundreds of thousands of dollars, Holterman said.
Part of OSF Saint Francis Medical Center, the Roman Catholic hospital considers the operation part of their mission to provide charity care, but also views it as a way to champion a type of stem-cell therapy that doesn't involve human embryos, the surgeons said. The Catholic church opposes using stem cells derived from human embryos in research or treatment.
Macchiarini has been involved in 14 previous windpipe operations using patients' own stem cells — five using man-made scaffolds like Hannah's but in adults; and nine using scaffolds made from cadaver windpipes, including one in a 10-year-old British boy.