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Pyogenic infection and rheumatoid arthritis
Abstract:
Ten episodes of severe pyogenic infection occurring in nine patients with rheumatoid arthritis are reported. There was a wide range of presenting features including pyoarthrosis in 7 episodes. Three cases presented with meningitis, bacterial endocarditis and probable multiple abscesses respectively. Infection was caused by Staphylococcus aureus in 7 episodes and by Staphylococcus epidermidis, Streptococcus pneumoniae and beta-haemolytic Streptococcus in each of one episode. Three infective episodes were fatal. Pyogenic, especially staphylococcal, infection should be considered in patients with rheumatoid arthritis with unexplained illness with or without sudden deterioration in joint symptoms. It is important to recognize and treat infection rapidly.
Insights
Patients with rheumatoid arthritis (RA) have a high risk of severe pyogenic infections, particularly Staphylococcus aureus. Prompt recognition and treatment of these infections are crucial for better outcomes.
Area of Science:
- Infectious Diseases
- Rheumatology
- Clinical Medicine
Background:
- Rheumatoid arthritis (RA) is a chronic autoimmune disease characterized by joint inflammation.
- Patients with RA are often immunocompromised due to the disease itself and its treatments, increasing susceptibility to infections.
Observation:
- This report details ten episodes of severe pyogenic infections in nine RA patients.
- Presenting features were diverse, including septic arthritis (pyoarthrosis) in seven episodes.
- Other severe infections included meningitis, bacterial endocarditis, and multiple abscesses.
Findings:
- Staphylococcus aureus was the causative agent in seven episodes.
- Staphylococcus epidermidis, Streptococcus pneumoniae, and beta-hemolytic Streptococcus each caused one episode.
- Three of the ten infectious episodes were fatal.
Implications:
- Pyogenic bacterial infections, especially staphylococcal, should be strongly suspected in RA patients presenting with unexplained illness or worsening joint symptoms.
- Rapid diagnosis and aggressive treatment of infections are critical for improving survival rates in RA patients.
- This highlights the importance of vigilance for infection in the management of rheumatoid arthritis.