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Related Experiment Videos

Lone hepatitis C virus myocarditis responsive to immunosuppressive therapy.

Andrea Frustaci1, Fiorella Calabrese, Cristina Chimenti

  • 1Department of Cardiology, Catholic University, Largo A. Gemelli 8, 00168 Rome, Italy. biocard@rm.unicatt.it

Chest
|October 16, 2002
PubMed
Summary

Hepatitis C virus (HCV) is detected in the heart muscle of patients with lone myocarditis. Immunosuppression treatment improved cardiac function, suggesting an immune-mediated damage mechanism.

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Area of Science:

  • Cardiology
  • Virology
  • Immunology

Background:

  • The role of Hepatitis C virus (HCV) in lone myocarditis remains unclear.
  • Understanding HCV's damage mechanism and treatment is crucial.

Purpose of the Study:

  • To investigate the causal link between HCV and lone myocarditis.
  • To assess the effectiveness of immunosuppression in HCV-associated myocarditis.

Main Methods:

  • Serological screening for HCV in 48 myocarditis patients.
  • Endomyocardial biopsy, echocardiography, and coronary angiography.
  • Nested PCR for HCV RNA detection in serum and myocardium.

Main Results:

  • HCV RNA detected in serum and myocardium of three patients with lone myocarditis.

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  • Lymphocytic myocarditis and cardiac autoantibodies present in all cases.
  • Successful treatment with immunosuppression (prednisone, azathioprine) leading to cardiac recovery.

    • Conclusions:

    • Hepatitis C virus (HCV) is present in the myocardium of 6% of lone myocarditis patients.
    • HCV myocarditis shows positive response to immunosuppression, indicating immune-mediated damage.
    • Viral genome persistence does not preclude therapeutic benefit from immunosuppression.