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Autoimmune coagulation disorders

L J Scott-Timperley1, W D Haire

  • 1Department of Internal Medicine, University of Nebraska Medical Center, Omaha, USA.

Rheumatic Diseases Clinics of North America
|May 1, 1997
PubMed
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Autoantibodies against circulating clotting factors, especially Factor VIII (F VIII), can cause spontaneous bleeding. Treatment involves supportive care, blood products, and immunosuppression to manage this rare autoimmune condition.

Area of Science:

  • Hematology
  • Immunology
  • Autoimmune Disorders

Background:

  • Spontaneous autoantibodies against coagulation factors (II, V, VII, VIII, IX, XI, XII, XIII) have unclear origins.
  • These autoantibodies, typically IgG, often target Factor VIII (F VIII) and can manifest without prior bleeding history.
  • Onset may be associated with autoimmune diseases or malignancies, or occur idiopathically.

Purpose of the Study:

  • To summarize the clinical presentation, laboratory findings, and management strategies for spontaneous autoantibodies against coagulation factors.
  • To highlight the challenges in diagnosis and treatment of acquired hemophilia, particularly F VIII inhibitors.
  • To discuss the role of various therapeutic interventions and the potential for spontaneous remission.

Main Methods:

Related Experiment Videos

  • Review of literature on spontaneous autoantibodies against coagulation factors.
  • Analysis of clinical cases presenting with bleeding diathesis and identified inhibitors.
  • Evaluation of diagnostic approaches and treatment outcomes, including supportive care, blood products, and immunosuppressive therapy.

    • Main Results:

    • Autoantibodies are predominantly IgG, frequently targeting F VIII, leading to bleeding diathesis.
    • Laboratory abnormalities differ based on the affected coagulation pathway (intrinsic/extrinsic).
    • Initial treatments (supportive, blood products like recombinant F VIII, porcine F VIII, PCC/aPCC) have limitations; plasmapheresis offers temporary titer reduction.

    Conclusions:

    • Effective management requires a multi-faceted approach, including immunosuppressive therapy to reduce antibody production.
    • While some treatments provide temporary relief, long-term control relies on suppressing the autoimmune response.
    • Spontaneous remission is possible, particularly in postpartum or drug-related cases, but the underlying mechanisms remain incompletely understood.