(CNN) — Rick Santorum’s three-year-old daughter Isabella, who suffers from a chromosomal condition called Trisomy 18, was admitted to a Philadelphia hospital Saturday.In a statement, Santorum spokesman Hogan Gidley said the GOP presidential candidate and former Pennsylvania senator would cancel campaign events on Sunday morning.”Rick and his wife Karen are admitting their daughter Bella to Children’s Hospital of Philadelphia this evening,” Gidley said. “The campaign will cancel Rick’s upcoming Sunday morning Florida campaign schedule. However, Rick intends to return to Florida and resume the campaign schedule as soon as is possible.”On Sunday, Team Santorum said the candidate would remain in the hospital Sunday afternoon and that his scheduled events would proceed with surrogates.Santorum was slated to appear on NBC’s “Meet the Press” and to make stops in the state ahead of Florida’s primary Tuesday.Trisomy 18 is caused by extra material from chromosome 18, and is three times more common in girls than boys. Half of patients born with the condition do not survive past the first week of life, according to the National Institutes of Health. Patients who do survive past the first week experience serious medical and developmental problems.On his campaign website, Santorum has a page devoted to his daughter, including a video in which the candidate describes the girl as the “center of the universe for our family.”"Our youngest daughter Isabella Maria, who we call Bella, is a very special girl who needs lot of care,” Santorum says in the video. “When she was born we knew something was wrong but we didn’t know what it was. It wasn’t until five days later that they came back and told Karen and me that she had a disorder called Trisomy 18, which is similar to Down’s syndrome.”Santorum describes feeling angry after doctors told him and his wife to prepare for Bella’s death in the first days of her life.”We’re going to not focus on her dying; we’re going to focus on her living,” Santorum says in the video.Copyright CNN 2012