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Published on: February 25, 2022

Arthritis in adults with community-acquired bacterial meningitis: a prospective cohort study

Martijn Weisfelt1, Diederik van de Beek, Lodewijk Spanjaard

  • 1Department of Neurology, Centre of Infection and Immunity Amsterdam (CINIMA), Academic Medical Centre, University of Amsterdam, Amsterdam, The Netherlands. m.weisfelt@amc.uva.nl

Abstract

Insights

Bacterial meningitis co-occurs with arthritis in 7% of adult cases. While often immune-mediated and generally having good outcomes, prolonged antibiotic therapy is crucial for infectious arthritis in bacterial meningitis.

Area of Science:

  • Infectious Diseases
  • Rheumatology
  • Clinical Microbiology

Background:

  • The simultaneous occurrence of bacterial meningitis and arthritis is recognized but not well-quantified.
  • Understanding the frequency and characteristics of this dual condition is important for patient management.

Purpose of the Study:

  • To determine the incidence of arthritis in adult patients with community-acquired bacterial meningitis.
  • To analyze the clinical features and outcomes of bacterial meningitis with coexisting arthritis.

Main Methods:

  • A prospective nationwide cohort study of 696 adult patients with culture-confirmed bacterial meningitis.
  • Arthritis diagnosis was based on physician judgment; statistical analysis included Fisher exact test and Mann-Whitney U test.

Main Results:

  • Arthritis was present in 7% of bacterial meningitis episodes (48/696).
  • Meningococcal meningitis had the highest arthritis incidence (12%).
  • Of those with arthritis, 48% underwent joint fluid aspiration, with 26% yielding positive bacterial cultures. Mortality was 8%, and 23% experienced residual joint symptoms.

Conclusions:

  • Arthritis is a common complication of community-acquired bacterial meningitis.
  • Outcomes vary by causative agent; meningococcal arthritis is typically immune-mediated and less deforming than staphylococcal arthritis.
  • Consideration of additional therapies and mandatory prolonged antibiotic treatment for infectious arthritis are recommended.

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