[Infection in systemic lupus erythematosus].

Area of Science:

• Rheumatology and Infectious Diseases
• Clinical Microbiology

Context:

• Systemic lupus erythematosus (SLE) is an autoimmune disease increasing susceptibility to infections.
• Hospitalized SLE patients face significant risks of various infections.
• Understanding infection prevalence and types is vital for patient management.

Purpose:

• To assess the types and frequency of infections in hospitalized patients with SLE.
• To determine the diagnostic utility of positive culture tests.
• To correlate infection occurrence with SLE activity and renal failure.

Summary:

• A study of 43 hospitalized SLE patients found 17 (41%) had infections, with urinary tract infections (E. coli) being most common.
• Positive cultures confirmed diagnoses in 84% of cases. Other infections included Staphylococcus, S. typhi, invasive Aspergillosis, and Tuberculosis.
• Infections frequently occurred during active SLE, particularly in patients with renal failure. Sepsis and pneumonia were also noted. Mortality was low, primarily linked to invasive Aspergillosis.

Impact:

• Highlights the high incidence of infections in SLE patients, emphasizing the need for vigilant monitoring.
• Underscores the importance of microbiological cultures for accurate diagnosis and appropriate treatment.
• Provides data for developing targeted preventive and therapeutic strategies for infections in SLE.