BIND score: A system to triage infants readmitted for extreme hyperbilirubinemia

Extreme hyperbilirubinemia [EHB, total serum bilirubin (TB) >25 mg/dL]) can lead to death, acute bilirubin encephalopathy (ABE), exchange transfusion, and/or bilirubin-induced neurologic dysfunction (BIND). In specific low- to middle-income countries, an "epidemic" exists, therefore, a simplified triage management system is needed. Here, we studied a cohort of 72 infants readmitted for EHB (TB: 28.1 ± 2.5; range: 25-42 mg/dL). Of these, 15/72 (20.8%) newborns had BIND scores ≥4. Eleven (15.3%) infants with BIND scores of 4 to 6 developed moderate ABE, with 6/11 (54.5%) with TB of 28.1 ± 4.8 mg/dL having post-icteric sequelae. Eight infants (TB of 32.1 ± 3.5 mg/dL) had BIND scores >6 and developed adverse outcomes. One infant, who had Rh disease and a BIND score of 8 died. We report that the key determinants for adverse outcomes were TB >30 mg/dL and a BIND score ≥4 and may be useful for a systems approach to triage infants readmitted for EHB.