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[Collagen diseases with pulmonary involvement].

Masataka Kuwana1

  • 1Institute for Advanced Medical Research, Keio University School of Medicine.

Nihon Rinsho Men'Eki Gakkai Kaishi = Japanese Journal of Clinical Immunology
|August 5, 2004
PubMed
Summary

This study examines intractable pulmonary complications in collagen diseases like dermatomyositis, scleroderma, and vasculitis. Early, intensive treatment is crucial for managing interstitial pneumonia and diffuse alveolar hemorrhage.

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Area of Science:

  • Rheumatology
  • Pulmonology
  • Immunology

Context:

  • Collagen diseases frequently cause pulmonary involvement, with some forms proving resistant to standard treatments.
  • Intractable pulmonary conditions include interstitial pneumonia in dermatomyositis, pulmonary fibrosis in scleroderma, and diffuse alveolar hemorrhage.
  • These conditions significantly impact patient prognosis and quality of life.

Purpose:

  • To review the characteristics and management of intractable pulmonary complications in collagen vascular diseases.
  • To highlight the importance of early diagnosis and tailored treatment strategies for these severe conditions.
  • To discuss current evidence regarding treatment efficacy for specific pulmonary manifestations.

Summary:

  • Acute/subacute interstitial pneumonia with diffuse alveolar damage (DAD) in amyopathic/hypomyopathic dermatomyositis, often lacking specific autoantibodies, may respond to early immunosuppressive therapy.
  • Scleroderma-associated pulmonary interstitial fibrosis, frequently showing non-specific interstitial pneumonia (NSIP) histology, shows potential benefit from cyclophosphamide, particularly with active alveolitis.
  • Diffuse alveolar hemorrhage, a life-threatening complication in systemic lupus erythematosus and ANCA-associated vasculitis (e.g., microscopic polyangitis, Wegener's granulomatosis), necessitates immediate diagnosis and aggressive treatment.

Impact:

  • Provides insights into managing severe, treatment-resistant lung conditions in rheumatologic and autoimmune diseases.
  • Emphasizes the need for prompt, aggressive therapeutic interventions to improve outcomes for patients with diffuse alveolar damage and hemorrhage.
  • Informs clinical decision-making for rheumatologists and pulmonologists managing complex pulmonary manifestations in collagen diseases.

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