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  • Title: Defining the limitations of transcutaneous bilirubin measurement in late preterm newborns.
    Author: Fine KL, Carey WA, Schuster JAW, Bryant SC, Cook WJ, Karon BS.
    Journal: J Perinatol; 2017 Jun; 37(6):658-661. PubMed ID: 28206994.
    Abstract:
    OBJECTIVE: The objective of this study is to determine the impact of postnatal age on the bias between transcutaneous (TcB) and total serum bilirubin (TSB), and evaluate a TcB screening protocol. STUDY DESIGN: Preterm and term infants had paired TcB and TSB performed on days 1 to 3 of life; a subset of preterm infants had measurements on days 4 to 7. Sensitivity and specificity of TcB (plotted on an age-specific TSB nomogram) for prediction of high-intermediate (HIR) or high-risk TSB were calculated. RESULTS: Median TcB bias was 2.6 and 2.5 mg dl-1 for term and preterm infants in the first 3 days of life, respectively. However, median bias was 2.2 mg dl-1 for preterm infants at 4 to 7 days of life. TcB in preterm infants predicted HIR or high-risk TSB with 94% sensitivity and 56% specificity. CONCLUSION: TcB screening protocols developed for term infants can be used for late preterm infants in the first 3 days of life.
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