title: The increase of yellow skin colour beyond that of serum bilirubin: a proposed indicator of risk for bilirubin encephalopathy in the newborn.
abstract: Forty-seven newborn infants with 1 min Apgar score < 7 were studied. On the third postnatal day the following measurements were made: yellow skin colour, serum bilirubin concentration, reserve albumin concentration and plasma pH. Given the bilirubin concentration and the regression curve between the yellow skin colour and the bilirubin concentration, delta-TcB was calculated as the difference between measured yellow skin colour and the expected yellow skin colour. There was a negative correlation between delta-TcB and Apgar score (P = 0.003), pH (P = 0.026) and reserve albumin concentration (P = 0.045). Fourteen of the included newborns had central nervous system symptoms in the days just following birth. A tendency towards higher delta-TcB was noted in this group (P = 0.08). The results suggest that further study of delta-TcB determination as a tool in the assessment of the icteric newborn infant is justified.
authors.affiliation: Department of Paediatrics, Aalborg Hospital, Denmark.
authors.forename: A
authors.initials: A
authors.lastname: Knudsen
authors.forename: F
authors.initials: F
authors.lastname: Ebbesen
authors.forename: H
authors.initials: H
authors.lastname: Hansen
authors.forename: R
authors.initials: R
authors.lastname: Brodersen
mesh_terms: D001034:Apgar Score; D001238:Asphyxia Neonatorum / Q000150:complications; D001663:Bilirubin / Q000097:blood*; D005865:Gestational Age; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007231:Infant, Newborn; D007565:Jaundice / Q000209:etiology; D007647:Kernicterus / Q000209:etiology*; D012307:Risk Factors
chemical_list: D001663:Bilirubin