新生儿高胆红素血症是新生儿期特有的现象,发生率为32％至86％,早产儿达90-95％。游离胆红素能引起胆红素脑病,尤其是早产儿更易发生。早产儿胆红素脑病发生率为1.6％至24％。血清高浓度直接胆红素升高到“危急水呼”(足月儿18-20毫克％,早产儿15毫克％),通常是换血的指征。但是目 Neonatal hyperbilirubinemia is a characteristic of the neonatal period, the incidence of 32% to 86%, 90-95% of premature children. Free bilirubin can cause bilirubin encephalopathy, especially premature children more likely to occur. The incidence of bilirubin encephalopathy in preterm infants was 1.6% to 24%. Serum high concentrations of direct bilirubin increased to “critical water call” (full-term children 18-20 mg%, 15 mg% preterm children), is usually an indicator of blood transfusion. But head