[Effect of obstructive malformations on the gastrointestinal tract on bilirubin levels in newborn infants].

The authors have reviewed their cases of neonatal obstructive malformations of the intestinal tract and analyzed the incidence of association with indirect hyperbilirubinemia. 39 patients in four years are considered. In 23 of them there is a bilirubin level greater than 5 mg/100 ml. A great number of high bilirubin levels (greater than 15 mg/100 ml) is associated with volvulus, malrotations and intestinal atresias. Bilirubin levels between 11 and 15 mg/100 ml are often connected with meconium ileus while ano-rectal atresias have a low bilirubin level (less than 5 mg/100 ml). The reported data allow to conclude that the jaundice is an early, but unfortunately, not specific symptom of congenital intestinal obstruction. The entero-hepatic circulation seems to be an important cause of the neonatal hyperbilirubinemia.