Aim To examine whether Cycrobilirubin Formation Capacity (CFC) could be clinically relevant in the treatment of neonatal hyperbilirubinemia.
Study design CFC is a sum of irradiances multiplied by the wavelength-specific bilirubin photoisomerization rate, calculated at 40 nm intervals between the ranges 400–520 nm, measured using a novel spectroradiometer. After evaluating CFC and footprints of light emitting diode (LED) device and fluorescent tube (FT) device, we performed a randomised controlled trial (RCT) to test whether phototherapies provided with different light spectra using the same CFC are equally effective. Thirty-two babies were enrolled without any exclusion criteria. Total serum bilirubin (TSB) levels before and after phototherapies were compared.
Result Seventeen babies were assigned to FT and fifteen to LED group. Birth characteristics were similar. Changes in TSB levels before and after phototherapy in LED and FT group were not different.
Conclusion Under the same CFC evaluated by the spectroradiometer, LED was as effective as FT. This supports the idea that CFC could be relevant in phototherapy for the treatment of hyperbilirubinemia in otherwise healthy newborns.
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