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[Relapsing viral hepatitis type A complicated with renal failure].

Martin Tagle1, Jose A Barriga, Sussy Gutierrez

  • 1Gastroenterólogo-Héatólogo, Clínica Anglo Americana, Lima. Peru.

Revista De Gastroenterologia Del Peru : Organo Oficial De La Sociedad De Gastroenterologia Del Peru
|April 21, 2004
PubMed
Summary

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This case study details a rare relapsing hepatitis A infection with cholestatic features, complicated by renal failure and vasculitis. Treatment with corticosteroids and cyclophosphamide proved effective for this unusual presentation.

Area of Science:

  • Hepatology
  • Nephrology
  • Immunology

Background:

  • Hepatitis A virus (HAV) infection typically follows a benign course, but relapsing forms (3-20%) and extra-hepatic manifestations, though rare, can occur.
  • Renal involvement and acute renal failure (ARF) are infrequent complications of non-fulminating hepatitis A, with unclear etiology.
  • Thrombotic microangiopathy has been previously associated with Hepatitis B, but its link to relapsing Hepatitis A is not well-documented.

Observation:

  • A 42-year-old male presented with relapsing cholestatic hepatitis A, fever, anemia, and acute renal failure requiring hemodialysis.
  • Cryoglobulinemia and hypocomplementemia were detected; kidney biopsy revealed thrombotic microangiopathy.
  • Skin biopsy showed leukocytoclastic vasculitis, with symptoms improving upon corticosteroid and cyclophosphamide therapy.

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Findings:

  • The patient exhibited thrombotic microangiopathy, suggesting a link to Hemolytic Uremic Syndrome (HUS).
  • This represents the first reported case of relapsing hepatitis A associated with confirmed microangiopathic renal involvement.
  • The patient responded well to immunosuppressive therapy, indicating an immune-mediated process.

Implications:

  • This case expands the understanding of potential severe complications of hepatitis A, including renal involvement.
  • It underscores the importance of considering immune-mediated mechanisms in hepatitis A-associated renal failure.
  • Further research is warranted to elucidate the pathophysiology of hepatitis A-related thrombotic microangiopathy and vasculitis.