Rick Santorum has resumed campaigning as his three-year-old daughter Isabella's condition has improved from being critical to what is being termed as a miraculous turnaround.  Earlier Santorum canceled Sunday's events leading up to the Florida Primary after Isabella was admitted to the hospital due to complications related to her condition, Trisomy 18.

His spokesman Hogan Gidley had said in an earlier statement, Rick and his wife Karen are admitting their daughter Bella to Children's Hospital of Philadelphia this evening. Rick intends to return to Florida and resume the campaign schedule as soon as is possible.”

Santorum speaking from the hospital room said, She went through a very tough time the last 48 hours and this afternoon she made really a remarkable turn. He added that she was still in the intensive care unit and was not ready to be released home, but that doctors were encouraged by the improvements made over the past few hours.

Trisomy 18, also known as the Edwards syndrome after the physician who first described the condition, is a genetic condition caused by the presence of the third copy of the material from the 18th chromosome. Typically, humans have two copies of chromosome 18. Sometimes, a baby will inherit an extra chromosome from a parent. This extra chromosome leads to abnormal physical development in the baby. Of the three types of Trisomy 18, the most common is full trisomy 18, which occurs in about 95 percent of the cases.

The other two types are partial Trisomy 18, which has two copies of chromosome 18 plus a partial piece of excess material from chromosome 18 and mosaic Trisomy 18, which occurs when only some of the cells have an extra chromosome 18.

One out of every 3,000 live births in the U.S. involves a child who has Trisomy 18.  More than 50 percent of babies with this condition do not make it beyond the first week of their lives and children who do survive till the teenage years have serious developmental and medical complications.

Typically, Trisomy 18 affects girls more than boys, and the majority of fetuses do not survive. Due to the fact that these kids suffer from complex potential medical problems, babies with Trisomy 18 are usually considered “medically fragile.”

Genetic testing is recommended for parents who have a child with this disorder and wish to have more children.