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Infection versus disease activity in rheumatoid arthritis: eight years' experience
Abstract:
Septic arthritis is a serious and sometimes fatal complication of rheumatoid arthritis. We have examined the clinical characteristics of 16 patients with infectious arthritis seen during an eight-year period. This represented 0.5% of all admissions to our hospital for patients with rheumatoid arthritis. Although rheumatoid arthritis is considered a predisposing factor for joint sepsis, 15 of our patients had other conditions that most likely increased their susceptibility to infection. Many patients lacked distinctive features of joint sepsis (fever, chills) and only one half had leukocytosis. Six had polyarticular complaints despite documented monarthric sepsis. Delay in diagnosis of joint infection and persistent effusions of the infected joints portended a poor prognosis.
Insights
Rheumatoid arthritis patients face a risk of septic arthritis. Many infected patients had other risk factors, and diagnosis was often delayed, leading to poor outcomes.
Area of Science:
- Rheumatology
- Infectious Diseases
- Clinical Medicine
Background:
- Septic arthritis is a severe complication in rheumatoid arthritis patients.
- Rheumatoid arthritis is a known risk factor for joint sepsis.
- Infectious arthritis complicates rheumatoid arthritis management.
Purpose of the Study:
- To examine the clinical characteristics of infectious arthritis in rheumatoid arthritis patients.
- To identify factors influencing the prognosis of septic arthritis in this population.
- To understand the presentation and diagnostic challenges of joint sepsis in rheumatoid arthritis.
Main Methods:
- Retrospective review of 16 patients with infectious arthritis admitted over eight years.
- Analysis of clinical features, comorbidities, and diagnostic markers.
- Correlation of diagnostic delays and joint effusions with patient outcomes.
Main Results:
- Infectious arthritis represented 0.5% of rheumatoid arthritis admissions.
- Fifteen of 16 patients had additional conditions predisposing them to infection.
- Classic signs of sepsis (fever, chills) and leukocytosis were often absent.
- Six patients presented with polyarticular complaints despite monarthric sepsis.
- Delayed diagnosis and persistent joint effusions were associated with poor prognosis.
Conclusions:
- Septic arthritis in rheumatoid arthritis patients often presents atypically.
- Comorbidities significantly increase susceptibility to joint sepsis.
- Early diagnosis and prompt treatment are crucial for improving outcomes in septic arthritis.
- Clinical vigilance is essential for recognizing joint sepsis in rheumatoid arthritis, even with non-specific symptoms.