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논문 기본 정보

자료유형
학술저널
저자정보
Hanmil Jang (Yonsei University College of Medicine) Yonggeun Cho (Hallim University Sacred Heart Hospital) John Hoon Rim (Yonsei University College of Medicine) Hyein Kang (Yonsei University College of Medicine) Sang-Guk Lee (Yonsei University College of Medicine) Jong-Baeck Lim (Yonsei University College of Medicine)
저널정보
대한임상검사정도관리협회 Journal of Laboratory Medicine And Quality Assurance Laboratory Medicine and Quality Assurance 제43권 제4호
발행연도
2021.12
수록면
208 - 213 (6page)
DOI
10.15263/jlmqa.2021.43.4.208

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Plasma hemoglobin (pHb) is measured when hemolysis is suspected as a result of biochemical, immunological, and mechanical conditions. In this study, we evaluated the clinical feasibility of the hemolysis index (H-index) for pHb measurement using automated chemistry analyzers. A total of 176 plasma samples were analyzed for pHb in the Severance Hospital using a Lambda 365 UV/Vis spectrophotometer (PerkinElmer, USA) and Fairbanks method 2. The remnant samples after pHb measurement were then analyzed for total bilirubin, and H-indices were determined using the automated Atellica CH930 system (Siemens, Germany) and Cobas c702 system (Roche, USA). The equivalence and correlation among the methods were evaluated using Passing-Bablok regression analysis and Spearman’s correlation analysis. All the methods showed high correlations with each other. However, the H-indices showed a negative constant bias compared to the Fairbanks method 2. When a cut-off value of 33.2 mg/dL was applied for diagnosis of hemolysis, 13 samples were determined positive by Fairbanks method 2 but negative by H-indices. These discordant results occurred mostly among samples with total bilirubin levels higher than 3 mg/dL (12 out of 13 samples). The correlation between total bilirubin and pHb measured by Fairbanks method 2 showed the largest correlation coefficient (R =0.347) and slope. These results suggest that the pHb measured by Fairbanks method 2 is more prone to bilirubin interference. In summary, our results suggest that H-indices from both automated chemistry analyzers possess excellent clinical feasibility for pHb measurements and have minimum total bilirubin interference compared to traditional measurement via Fairbanks method 2.

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