Biology · 2023
Applicability of International Autoimmune Hepatitis Group (IAIHG) Scoring System for Autoimmune Hepatitis in Pediatrics.
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Sakulsaengprapha Vorada, Wasuwanich Paul, Naraparaju Gayathri, Korotkaya Yelena, Thawillarp Supharerk, Oshima Kiyoko, Karwowski Christine, Scheimann Ann O, Karnsakul Wikrom
Аннотация
INTRODUCTION: Many hepatologic pathologies mimic autoimmune hepatitis (AIH). Researchers developed the International Autoimmune Hepatitis Group (IAIHG) scoring system to compensate for the lack of specific diagnostic tests for AIH. The scoring system was not designed with pediatric patients in mind, so there are limits to its pediatric use. Additionally, there is limited information on the value of a liver biopsy in conjunction with its use.
METHODS: In this retrospective study, we evaluated the effect of liver biopsy scores on the IAIHG scoring system in patients that were 0-18 years old with suspected AIH. We also analyzed demographic data and laboratory values associated with a final AIH diagnosis.
RESULTS: We found that interface hepatitis and predominant plasma cells found during the biopsy were significantly associated with a final AIH diagnosis. We also found that abnormal laboratory values were associated with an AIH diagnosis. We found that IAIHG scores calculated post-liver biopsy showed a greater area under the receiver operating characteristic curve (AUROC) of 0.95, which was compared to 0.88 for the scores calculated before a liver biopsy. Including biopsy metrics lowered the optimized cutoff score and test specificity.
CONCLUSION: Incorporating liver histopathological features improved the performance of the IAIHG scoring system. Further studies to identify other potential elements in liver histology may improve the performance metrics of the IAIHG test in the pediatric population.
METHODS: In this retrospective study, we evaluated the effect of liver biopsy scores on the IAIHG scoring system in patients that were 0-18 years old with suspected AIH. We also analyzed demographic data and laboratory values associated with a final AIH diagnosis.
RESULTS: We found that interface hepatitis and predominant plasma cells found during the biopsy were significantly associated with a final AIH diagnosis. We also found that abnormal laboratory values were associated with an AIH diagnosis. We found that IAIHG scores calculated post-liver biopsy showed a greater area under the receiver operating characteristic curve (AUROC) of 0.95, which was compared to 0.88 for the scores calculated before a liver biopsy. Including biopsy metrics lowered the optimized cutoff score and test specificity.
CONCLUSION: Incorporating liver histopathological features improved the performance of the IAIHG scoring system. Further studies to identify other potential elements in liver histology may improve the performance metrics of the IAIHG test in the pediatric population.