Briefly noted: “Unbound Unconjugated Hyperbilirubinemia is Associated with Central Apnea in Premature Infants” J Pediatr 2015; 166: 571-5.  This was a prospective observational study with 100 27-33 gestational infants.  The group with central apnea had higher unconjugated hyperbilirubinemia (UB).  The authors speculate that UB could cause neurotoxicity via central chemoreceptors and more aggressive treatment of UB with phototherapy could be needed.