A lab has successfully gestated premature lambs in artificial wombs. Are humans next?
When babies are born at 24 weeks’ gestation, “it is very clear they are not ready to be here,” says Emily Partridge, a research fellow at the Children’s Hospital of Philadelphia.
Doctors dress the hand-sized beings in miniature diapers and cradle them in plastic incubators, where they are fed through tubes. In many cases, IV lines deliver sedatives to help them cope with the ventilators strapped to their faces.
Each year, about 30,000 American babies are born this early—considered “critically preterm,” or younger than 26 weeks. Before 24 weeks, only about half survive, and those who live are likely to endure long-term medical complications. “Among those that survive, the challenges are things we all take for granted, like walking, talking, seeing, hearing,” says Kevin Dysart, a neonatologist at the Children’s Hospital.