Medicine · 2017
Course of hepatitis E infection in a patient with rheumatoid arthritis and autoimmune hepatitis: A case report.
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Thodou Victoria, Buechter Matthias, Manka Paul, Gerken Guido, Kahraman Alisan
Аннотация
RATIONALE: A 62-year-old male patient was admitted to our clinic in February 2016 with persistently elevated liver enzymes.
PATIENT CONCERNS: Clinical history involved a long time of poly-autoimmunity with a rheumatoid arthritis (in remission under tocilizumab therapy), an autoimmune thyroiditis, an eosinophilia as well as a hyper-immunoglobulin (IgG) 4-syndrome.
DIAGNOSES: Laboratory studies revealed a significant increase in liver enzymes with an alanine aminotransferase (ALT) level of 574 U/L and an aspartate aminotransferase (AST) level of 864 U/L (normal <50 U/L). Furthermore, the patient was positive for anti-nuclear autoantibodies (ANA) with a titer of 1:320 (normal upper limit: 1:80).
INTERVENTIONS: Liver histology, obtained via mini-laparoscopy, demonstrated lobular hepatitis with markedly increased hepatocyte apoptosis, lymphoplasmatic cell infiltration, and 20% microvascular fat without significant fibrosis, which strengthened the diagnosis of autoimmune hepatitis (AIH). Pulse steroid treatment with 100 mg prednisolone for 3 days followed by a tapering down was initiated. Follow-up laboratory analysis demonstrated a decrease in liver enzymes and also of the ANA-titer.
OUTCOMES: At that point, hepatitis E virus (HEV) infection was diagnosed with a positive anti-HEV immunoglobulin M (IgM) antibody and HEV-ribonucleotide acid (RNA) of 6280 copies/mL.
LESSONS: Despite the HEV infection and due to the strength of autoimmunity, we decided to continue immunosuppressive therapy and monitored HEV-PCR regularly. However, HEV-RNA became negative after 2 months and HEV-IgM turned negative after 13 months.
PATIENT CONCERNS: Clinical history involved a long time of poly-autoimmunity with a rheumatoid arthritis (in remission under tocilizumab therapy), an autoimmune thyroiditis, an eosinophilia as well as a hyper-immunoglobulin (IgG) 4-syndrome.
DIAGNOSES: Laboratory studies revealed a significant increase in liver enzymes with an alanine aminotransferase (ALT) level of 574 U/L and an aspartate aminotransferase (AST) level of 864 U/L (normal <50 U/L). Furthermore, the patient was positive for anti-nuclear autoantibodies (ANA) with a titer of 1:320 (normal upper limit: 1:80).
INTERVENTIONS: Liver histology, obtained via mini-laparoscopy, demonstrated lobular hepatitis with markedly increased hepatocyte apoptosis, lymphoplasmatic cell infiltration, and 20% microvascular fat without significant fibrosis, which strengthened the diagnosis of autoimmune hepatitis (AIH). Pulse steroid treatment with 100 mg prednisolone for 3 days followed by a tapering down was initiated. Follow-up laboratory analysis demonstrated a decrease in liver enzymes and also of the ANA-titer.
OUTCOMES: At that point, hepatitis E virus (HEV) infection was diagnosed with a positive anti-HEV immunoglobulin M (IgM) antibody and HEV-ribonucleotide acid (RNA) of 6280 copies/mL.
LESSONS: Despite the HEV infection and due to the strength of autoimmunity, we decided to continue immunosuppressive therapy and monitored HEV-PCR regularly. However, HEV-RNA became negative after 2 months and HEV-IgM turned negative after 13 months.