Abstract
The objective of this study was to evaluate the correlation and agreement between transcutaneous and serum bilirubin among preterm low-birth-weight neonates. Neonates born at <35 weeks of gestation with birth weight <2,000 g were enrolled prospectively. Transcutaneous bilirubin (TcB) was measured at forehead, sternum, and abdomen at 24 ± 6 and 72 ± 12 h after birth and when icterus involved arms or legs (Kramer zone 4–5). Serum total bilirubin (STB) was measured by microbilimeter (STB-M) at all these time-points and by high-performance liquid chromatography (STB-H) at one randomly chosen time-point. A total of 1,619 observations were made in 256 neonates (median gestation, 34 weeks (IQR, 32–35), birth weight 1,522 ± 288 g). Overall there was excellent correlation and agreement between TcB and STB-M with TcB on forehead being most accurate (r = 0.84, mean difference, 0.3 ± 1.9 mg/dL) followed by TcB on abdomen (r = 0.73, mean difference, 1.5 ± 2.6 mg/dL) and sternum (r = 0.72, mean difference, 1.5 ± 2.6 mg/dL). TcB performed well at all three points of measurement with best correlations being observed at icterus level 4/5. Correlation between TcB and STB-H measured by high-performance liquid chromatography was less strong but significant (r = 0.59 to 0.69 at different time points of measurement). Conclusions: TcB has good correlation and agreement with STB in preterm low-birth-weight neonates born at ≥28 weeks of gestation.
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Abbreviations
- HPLC:
-
High-performance liquid chromatography
- LBW:
-
Low birth weight
- STB:
-
Serum total bilirubin
- STB-M:
-
Serum total bilirubin measured by microbilimeter
- STB-H:
-
Serum total bilirubin measured by high-performance liquid chromatography
- TcB:
-
Transcutaneous bilirubin
- VLBW:
-
Very low birth weight
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Study was funded by extramural research grant from Indian Council of Medical Research (IRIS ID, 2008–02250)
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None of the authors have any financial relationships relevant to this article to disclose.
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The authors declare that they have no conflict of interest. None of the authors have any financial relationship with the organization that sponsored the research.
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Chawla, D., Jain, S., Kaur, G. et al. Accuracy of transcutaneous bilirubin measurement in preterm low-birth-weight neonates. Eur J Pediatr 173, 173–179 (2014). https://doi.org/10.1007/s00431-013-2142-0
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DOI: https://doi.org/10.1007/s00431-013-2142-0