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. 2021 Jul-Sep;35(3):E30-E37.
doi: 10.1097/JPN.0000000000000555.

Comparing JM-105 and MBJ-20 Transcutaneous Bilirubinometers According to the Area Tested in Ethnically Diverse Late-Preterm and Term Neonates

Marjan Khajehei  1 , Seng Chai Chua, Beata Gidaszewski, Julie Swain
Affiliations

Comparing JM-105 and MBJ-20 Transcutaneous Bilirubinometers According to the Area Tested in Ethnically Diverse Late-Preterm and Term Neonates

Marjan Khajehei et al. J Perinat Neonatal Nurs. 2021 Jul-Sep.

Abstract

This study aims to evaluate the correlation between the results of transcutaneous bilirubin (TcB) levels measured by the 2 transcutaneous bilirubinometers according to the area tested and to compare the TcB measurements and the serum bilirubin (SBR) levels. We screened 78 neonates born at more than 35 weeks of gestation and aged less than 168 hours for jaundice. We used JM-105 and MBJ-20 to measure the TcB at the forehead and the chest. For newborns who had high TcB measurements, we obtained blood samples during the subsequent 30 minutes. There was a strong correlation between the TcB measurements by JM-105 and MBJ-20 and this correlation was stronger when they were used on the sternum. The mean differences between the TcB measurements on the forehead and the sternum and the SBR levels were similar for the JM-105 and the MBJ-20. There was a strong correlation between SBR and the measurements using the 2 devices on the sternum (JM-105: r = 0.805; MBJ-20: r = 0.801), unlike measurements taken on the forehead by each device (r = 0.777 and r = 0.751, respectively). Both devices had high sensitivity and negative predictive values at SBR level of less than 230 μmol/L (<13.4 mg/dL) and high specificity and positive predictive values at SBR level of 230 μmol/L and greater (>13.4mg/dL). Both devices equally overestimated the actual SBR and had more reliable results if used on the sternum.

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