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MPO-ANCA-associated small vessel vasculitis presenting as fever of unknown origin. Report of one case

Harun Akar1, Cigdem Ozbasli-Levi, Taskin Senturk

  • 1Department of Nephrology, Adnan Menderes University Medical School, Aydin, Turkey. hakar2002@hotmail.com

Nephron
|October 10, 2002
PubMed

Insights

Microscopic polyangiitis (MPA), an ANCA-associated vasculitis, can be treated with corticosteroids and immunosuppressants. Plasmapheresis (PF) showed utility in a refractory MPA case, aiding remission when standard therapies were insufficient.

Area of Science:

  • Nephrology
  • Rheumatology
  • Immunology

Background:

  • Microscopic polyangiitis (MPA) is a small vessel vasculitis associated with antineutrophil cytoplasmic antibodies (ANCAs).
  • Standard treatment involves corticosteroids and immunosuppressants, but some patients exhibit refractory disease or require high-dose therapy.
  • Fever, leukocytosis, elevated ESR, rising creatinine, and hematuria are key indicators for MPA investigation.

Observation:

  • A 54-year-old female presented with prolonged fever, leukocytosis, and elevated ESR.
  • Persistent renal dysfunction and hematuria prompted a renal biopsy, confirming MPA via microscopy.
  • The patient achieved remission with corticosteroids, cyclophosphamide, and plasmapheresis (PF).

Findings:

  • This case highlights the successful use of plasmapheresis in conjunction with standard immunosuppressive therapy for MPA.
  • Plasmapheresis was instrumental in inducing remission in a patient with refractory disease.
  • The study assesses the role and utility of PF in MPA management, particularly for non-responders or those needing high-dose conventional treatments.

Implications:

  • Plasmapheresis may be a valuable therapeutic option for select patients with microscopic polyangiitis who do not respond adequately to conventional treatments.
  • Considering MPA in the differential diagnosis of fever of unknown origin with renal involvement is crucial.
  • This case expands the understanding of treatment strategies for ANCA-associated vasculitis, emphasizing personalized therapeutic approaches.

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