First Conjoined Twins to Be Separated by Surgery

First Conjoined Twins to Be Separated by Surgery

The first conjoined twins to be surgically separated were Carolyn Anne Mouton and Catherine Anne Mouton of Lafayette, Louisiana, on September 17, 1953. Conjoined twins, more commonly known as Siamese twins, are identical twins who develop from a single fertilized ovum that does not divide properly and leaves the two babies physically joined in some manner. The separation of the Mouton girls, joined at the lower back, took place at the Ochsner Foundation Hospital in New Orleans, Louisiana, eight days after their birth. It became the first successful procedure of its kind that used modern surgical techniques. Although separating conjoined twins still remains a risky process, because the two individuals often share a critical internal organ or organs, there have been many advancements since the Mouton surgery in 1953. Today, even twins joined at the skull can be separated, despite the risk to vital brain tissue.