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Trimethoprim-sulfamethoxasole induced meningitis in systemic lupus erythematosus

A Escalante1, M M Stimmler

  • 1Arthritis Service, Rancho Los Amigos Medical Center, Downey, CA.

Insights

Trimethoprim-sulfamethoxazole (TMP-SMX) can cause drug-induced aseptic meningitis in patients with systemic lupus erythematosus (SLE). Retrospective analysis revealed a history of severe reactions to TMP-SMX in a patient who developed meningitis.

Area of Science:

  • Clinical Medicine
  • Neurology
  • Rheumatology

Background:

  • Systemic lupus erythematosus (SLE) is an autoimmune disease with diverse clinical manifestations.
  • Drug-induced meningitis is a rare but serious adverse reaction to certain medications.
  • Ibuprofen is the most commonly reported drug causing meningitis in SLE patients.

Observation:

  • A 46-year-old woman with a history of SLE presented with acute aseptic meningitis.
  • The patient had ingested trimethoprim-sulfamethoxazole (TMP-SMX) prior to symptom onset.
  • Previous exposures to TMP-SMX were associated with escalating, unrecognized adverse reactions.

Findings:

  • Trimethoprim-sulfamethoxazole (TMP-SMX) was identified as the causative agent for aseptic meningitis in this SLE patient.
  • The patient experienced increasingly severe reactions with prior TMP-SMX use, suggesting a pattern of hypersensitivity.
  • Diagnosis was confirmed retrospectively by linking meningitis symptoms to TMP-SMX ingestion.

Implications:

  • Clinicians should consider TMP-SMX as a potential cause of aseptic meningitis in SLE patients.
  • A detailed medication history is crucial for diagnosing meningitis in patients with autoimmune disorders.
  • Increased awareness of TMP-SMX-induced meningitis may improve patient outcomes and prevent future occurrences.

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