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Diagnostic Value and Utility of the Simplified International Autoimmune Hepatitis Group (IAIHG) Criteria for Autoimmune Hepatitis in Korea  

Lee, Yun-Nah (Digestive Disease Center, Department of Internal Medicine, Soonchunhyang University College of Medicine)
Kim, Young-Seok (Digestive Disease Center, Department of Internal Medicine, Soonchunhyang University College of Medicine)
Kim, Sang-Gyune (Digestive Disease Center, Department of Internal Medicine, Soonchunhyang University College of Medicine)
Lim, Jae-Hee (Digestive Disease Center, Department of Internal Medicine, Soonchunhyang University College of Medicine)
Jeong, Soung-Won (Digestive Disease Center, Department of Internal Medicine, Soonchunhyang University College of Medicine)
Jang, Jae-Young (Digestive Disease Center, Department of Internal Medicine, Soonchunhyang University College of Medicine)
Lee, Se-Hwan (Digestive Disease Center, Department of Internal Medicine, Soonchunhyang University College of Medicine)
Kim, Hong-Soo (Digestive Disease Center, Department of Internal Medicine, Soonchunhyang University College of Medicine)
Kim, Boo-Sung (Digestive Disease Center, Department of Internal Medicine, Soonchunhyang University College of Medicine)
Kim, Hee-Kyung (Digestive Disease Center, Department of Pathology, Soonchunhyang University College of Medicine)
Publication Information
The Korean Journal of Medicine / v.81, no.3, 2011 , pp. 340-350 More about this Journal
Abstract
Background/Aims: The diagnostic criteria for autoimmune hepatitis (AIH) were created and revised by the International Autoimmune Hepatitis Group (IAIHG) in 1999. Simplified scoring criteria based on four clinical components were recently proposed. The aim of this study was to assess the diagnostic value and usefulness of these simplified criteria in Korea. Methods: We applied the simplified scoring criteria to 22 AIH patients diagnosed according to the original revised scoring criteria proposed in 1999. Furthermore, in order to compare the predictive power of these two sets of diagnostic criteria, we included 84 patients with liver diseases [toxic hepatitis (n = 50), nonalcoholic fatty liver disease (n = 18), primary biliary cirrhosis (PBC) (n = 11), and PBC/AIH overlap syndrome (n = 5)] other than AIH. Results: Twenty (90.9%) patients with AIH and five (100%) with PBC/AIH overlap syndrome were diagnosed with AIH according to the simplified scoring criteria. Three (27.3%) patients with PBC were false-positive for AIH according to the simplified scoring criteria. Those patients diagnosed according to the simplified scoring criteria showed an increased frequency of ANA and/or SMA of ${\geq}$ 1:80 (p = 0.491) and an increased frequency of serum IgG levels at or above the upper normal limit compared to patients with PBC (p = 0.006). The sensitivity and specificity of the simplified scoring criteria for the diagnosis of AIH were 90.9 and 96.2%, respectively. Conclusions: The simplified scoring criteria offer a reliable and simple method for excluding AIH; however, these criteria may have limitations in the diagnosis of patients with atypical features, especially those with low autoantibody and IgG levels.
Keywords
Hepatitis, Autoimmune; Diagnosis; Criteria;
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