Abstract
Background/Aims
Disease-modifying anti-rheumatic drugs (DMARDs) require blood monitoring as recommended by the British Society for Rheumatology guidelines. Deranged liver function tests are a common abnormality, and when a significant transaminitis occurs further investigations are required. We wish to present three cases where a transaminitis was caused by acute hepatitis E. Hepatitis E rarely causes illness in the general population. Transmission can occur via sewage-contaminated food and water, undercooked or raw pig and game meat, or processed pork and shellfish. Blood transfusion and solid organ transplantation is very rare. There is an estimated 60,000 cases of Hepatitis E per year in England. Those who are immunosuppressed are more likely to develop chronic liver disease.
Methods
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Results
Case 1 is 55 year old male with a seronegative inflammatory arthritis treated with methotrexate and sulfasalazine whose ALT rose to 2043 U/l. After a negative liver screen including autoantibodies, Hepatitis E IgM was detected. Case 2 is a 71 year old male with seropositive rheumatoid arthritis prescribed Methotrexate and Sulfasalazine who developed a transaminitis following a holiday to Spain. Hepatitis E serology was positive. Case 3 is a 65 year old male with seropositive rheumatoid arthritis on Abatacept and Methotrexate who also developed deranged liver function tests following a trip to Spain. Alcohol excess was initially suspected due to the consumption of > 20 units per week. However, on cessation of all medications the ALT continued to rise to 1087 U/l. He was found to be Hepatitis E IgM positive with viral PCR also detected. In all three cases contaminated food was likely to be the source of infection and DMARDs were successfully restarted in all patients following normalisation of liver function tests.
Conclusion
This case series highlights an important differential for transaminitis with very little published literature. Hepatitis E is under reported and not routinely requested in practice as part of a liver screen. Failure to check Hepatitis E serology may lead to DMARDs being discontinued inappropriately. All patients should be educated about the risks of Hepatitis E from food products.We recommend that DMARDs are suspended once Hepatitis E infection has been diagnosed in order to allow the immune system combat the infection. Treatment is usually self limiting, though in severe cases Ribavirin has been used with good effect. DMARDs should be restarted once liver markers normalise, and two serum Hepatitis E RNA results and two stool samples are negative. The presence of persistent Hepatitis E RNA (viral shedding) is highly suspicious for chronic infection, which would warrant hepatology input.
Disclosure
G.A. Brown: None. L. Kearney: None. E. Warner: None. S. Ellis: None.
Fine Mapping Seronegative and Seropositive Rheumatoid Arthritis to Shared and Distinct HLA Alleles by Adjusting for the Effects of Heterogeneity
