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Acquired high titre factor VIII inhibitor with underlying polyarteritis nodosa
J A Snowden1, M Hutchings, R Spearing
1Department of Hematology, Christchurch Public Hospital, New Zealand.
Pathology
|May 1, 1997
Summary
This case report details a fatal outcome in a patient with acquired Factor VIII inhibitors and ANCA-associated vasculitis. It highlights the challenges in managing these complex autoimmune conditions.
Area of Science:
- Internal Medicine
- Hematology
- Rheumatology
Background:
- Acquired Factor VIII inhibitors are rare autoimmune complications.
- Autoimmune disorders can be associated with Factor VIII inhibitors.
Observation:
- A 70-year-old woman presented with bleeding due to a high-titer acquired Factor VIII inhibitor.
- She had a history of ANCA-associated vasculitis relapse.
- Treatment with immunosuppression was ineffective.
Findings:
- The patient died from multi-organ failure and hemorrhage.
- Post-mortem examination revealed necrotizing vasculitis consistent with polyarteritis nodosa.
- This is the first reported case of Factor VIII inhibitors associated with histologically proven polyarteritis nodosa.
Implications:
- This case underscores the diagnostic and management difficulties in patients with acquired high-titer Factor VIII inhibitors.
- It highlights a novel association between Factor VIII inhibitors and polyarteritis nodosa.
- Further research is needed to understand the pathogenesis and treatment strategies for such complex cases.