Digestive and liver disease : official journal of the Italian Society of Gastroenterology and the Italian Association for the Study of the Liver · 2009
Autoimmune hepatitis with acute presentation in Japan.
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Miyake Y, Iwasaki Y, Kobashi H, Yasunaka T, Ikeda F, Takaki A, Yamamoto K
Аннотация
BACKGROUND: In Caucasians with autoimmune hepatitis, patients with acute presentation have autoimmune thyroiditis and histological zone 3 necrosis more frequently.
AIM: We aimed at investigating clinical features of Japanese autoimmune hepatitis patients with acute presentation.
METHODS: Of 176 patients retrospectively reviewed, 53 were diagnosed with acute presentation.
RESULTS: Patients with acute presentation had higher serum levels of bilirubin and transaminase, lower frequencies of autoimmune thyroiditis and antinuclear antibodies of 1:160 or greater, and a higher frequency of zone 3 necrosis. Of the 53 patients with acute presentation, 10 showed histological acute hepatitis; however, advanced staging of fibrosis was found in 13 patients. In patients with acute presentation, those with histological acute hepatitis were younger than those with chronic hepatitis. The cumulative incidental rate of the normalization of serum alanine aminotransferase levels with prednisolone treatment was similar between patients with acute presentation and those with classical presentation.
CONCLUSIONS: In line with previous results, zone 3 necrosis is a histological characteristic of autoimmune hepatitis with acute presentation. Autoimmune hepatitis with acute presentation includes not only histological acute hepatitis but also acute exacerbation of pre-existing chronic disease. On the other hand, Japanese patients with acute presentation may also have different clinical features from Caucasian patients.
AIM: We aimed at investigating clinical features of Japanese autoimmune hepatitis patients with acute presentation.
METHODS: Of 176 patients retrospectively reviewed, 53 were diagnosed with acute presentation.
RESULTS: Patients with acute presentation had higher serum levels of bilirubin and transaminase, lower frequencies of autoimmune thyroiditis and antinuclear antibodies of 1:160 or greater, and a higher frequency of zone 3 necrosis. Of the 53 patients with acute presentation, 10 showed histological acute hepatitis; however, advanced staging of fibrosis was found in 13 patients. In patients with acute presentation, those with histological acute hepatitis were younger than those with chronic hepatitis. The cumulative incidental rate of the normalization of serum alanine aminotransferase levels with prednisolone treatment was similar between patients with acute presentation and those with classical presentation.
CONCLUSIONS: In line with previous results, zone 3 necrosis is a histological characteristic of autoimmune hepatitis with acute presentation. Autoimmune hepatitis with acute presentation includes not only histological acute hepatitis but also acute exacerbation of pre-existing chronic disease. On the other hand, Japanese patients with acute presentation may also have different clinical features from Caucasian patients.