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Ibuprofen-induced aseptic meningoencephalitis confirmed by drug challenge

A Moreno-Ancillo1, A C Gil-Adrados, J Jurado-Palomo

  • 1Department of Allergy, Hospital Nuestra Señora del Prado, Talavera de la Reina, Spain. alanaro@telefonica.net

Journal of Investigational Allergology & Clinical Immunology
|October 15, 2011
PubMed

Insights

Drug-induced aseptic meningitis (DIAM) is a rare hypersensitivity reaction, often challenging to diagnose. A case study highlights ibuprofen as a key culprit, confirmed through a positive drug challenge.

Area of Science:

  • Neurology
  • Immunology
  • Pharmacology

Background:

  • Drug-induced aseptic meningitis (DIAM) presents diagnostic challenges, with NSAIDs, antibiotics, and immunotherapies as common causes.
  • DIAM is more prevalent in patients with underlying autoimmune conditions.
  • Accurate diagnosis is crucial for patient management and preventing recurrence.

Observation:

  • A 36-year-old woman experienced recurrent aseptic meningoencephalitis episodes over nine months.
  • Neurological symptoms were consistently linked to ibuprofen use.
  • A diagnostic drug challenge confirmed ibuprofen as the causative agent, triggering classic DIAM symptoms.

Findings:

  • The patient presented with fever, headache, and nuchal rigidity following ibuprofen ingestion.
  • Cerebrospinal fluid analysis revealed high protein levels and pleocytosis (neutrophilic initially, then lymphocytic).
  • Acetylsalicylic acid challenge did not elicit a reaction, differentiating from ibuprofen's role.

Implications:

  • This case underscores the importance of considering DIAM in patients with recurrent meningitis, especially those with autoimmune diseases.
  • Pharmacological drug challenges are essential for confirming causative agents in suspected DIAM cases.
  • Early and accurate diagnosis of DIAM prevents unnecessary investigations and guides appropriate treatment strategies.

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