ROCKDALE COUNTY, Ga. — When 14-year-old Collin Gates collapsed during track practice on Feb. 7, his mother didn't know he had a congenital heart defect. What she did know was CPR. Doctors at Children's Healthcare of Atlanta say that training helped save his life. "He was extremely ill, on life support, in critical condition," said Dr. Michael Fundora, a cardiac intensivist at Children's Arthur M. Blank Hospital.