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[Pulmonary infections in patients with rheumatoid arthritis]

Noboru Takayanagi1, Yutaka Tsuchiya, Daidou Tokunaga

  • 1Department of Respiratory Medicine, Saitama Cardiovascular and Respiratory Center.

Nihon Kokyuki Gakkai Zasshi = the Journal of the Japanese Respiratory Society
|July 25, 2007
PubMed

Insights

Rheumatoid arthritis patients face diverse pulmonary infections, including nontuberculous mycobacteriosis and pneumonia. Underlying lung disease and immunosuppressive therapies are key risk factors for these infections.

Area of Science:

  • Rheumatology
  • Infectious Diseases
  • Pulmonology

Context:

  • Rheumatoid arthritis (RA) is a chronic autoimmune disease affecting joints and potentially other organs.
  • Pulmonary complications are a significant cause of morbidity and mortality in RA patients.
  • Understanding the spectrum and risk factors of pulmonary infections in RA is crucial for patient management.

Purpose:

  • To investigate the types and prevalence of pulmonary infections in rheumatoid arthritis patients.
  • To identify underlying conditions and treatments associated with increased risk of pulmonary infections in RA.
  • To analyze the specific risk factors contributing to different types of pulmonary infections in this population.

Summary:

  • A study of 149 RA patients revealed various pulmonary infections, with nontuberculous mycobacteriosis (59 cases) and pneumonia (46 cases) being most common.
  • Underlying lung diseases were prevalent, especially in patients with exacerbation of bronchiectasis (100%), pulmonary aspergillosis (91.7%), and pneumonia (87%).
  • Immunosuppressive therapies like steroids, methotrexate, and TNFalpha inhibitors were associated with specific infections, while comorbidities like malignancy and diabetes mellitus were noted in lung abscess cases. Pseudomonas aeruginosa was a common pathogen.

Impact:

  • This research highlights the complex interplay of factors contributing to pulmonary infections in RA patients.
  • It underscores the importance of considering underlying lung disease, specific immunosuppressive treatments, and comorbidities when assessing infection risk.
  • Findings can inform clinical practice, leading to better diagnostic strategies and preventative measures for pulmonary infections in rheumatoid arthritis.

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