Wiktionary
blue baby syndrome
n. (context medicine English) cyanotic heart defects in a newborn baby
Wikipedia
Blue baby syndrome
Blue baby syndrome refers to at least two situations that lead to cyanosis in infants: cyanotic heart disease and methemoglobinemia. The most common cyanotic heart defects include transposition of the great arteries, tetralogy of Fallot, persistent truncus arteriosus, tricuspid atresia and total anomalous pulmonary venous return.