Drug induced aseptic meningitis: Difference between revisions

(Created page with "==Background== *Abbreviation: DIAM *Two proposed mechanisms **Direct meningeal irritation by intrathecal drug **Hypersensitivity reaction to drug (type III and IV)")
 
No edit summary
 
(16 intermediate revisions by 3 users not shown)
Line 4: Line 4:
**Direct meningeal irritation by intrathecal drug
**Direct meningeal irritation by intrathecal drug
**Hypersensitivity reaction to drug (type III and IV)
**Hypersensitivity reaction to drug (type III and IV)
*Higher predominance in SLE and female gender
===Causes===
*[[NSAIDs]]
**Most common cause
*[[Antibiotics]]
**Sulfamethizole
**[[TMP-SMX]]
**[[Isoniazid]]
**[[Ciprofloxacin]]
**[[Amoxicillin]]
**[[Gentamicin]]
**[[Penicillin]]
**[[Metronidazole]]
**[[Cephalosporins]]
**[[Pyrazinamide]]
*Immunoregulating agents
**IVIGs
**OKT3 monoclonal antibodies
*Misc
**Sulfasalazine
**[[Carbamazepine]]
**[[Azathioprine]]
**Indinavir
**[[Valacyclovir]]
**[[Ranitidine]]
**[[Famotidine]]
**Methylprednisolone acetate
**[[Allopurinol]]
==Clinical Freatures==
''Symptoms generally occur within 24-48 hours after taking drug''
*[[Headache]]
*[[Fever]]
*Nuchal rigidity
*[[Nausea/vomiting]]
*General malaise
*[[Altered mental status]]
*Less common symptoms include rash, arthralgia, myalgia, facial edema
==Differential Diagnosis==
{{Headache DDX}}
==Evaluation==
*Drug history with focus on time of ingestion and symptom onset
*CSF studies
**Pleiocytosis (primarily neutrophilic)
**Elevated protein levels
**Normal glucose
**Negative cultures
*Challenge test with suspected drug
**Only confirmatory test
**Requires informed written consent
**Due to associated risk, should only be done if suspected drug is irreplaceable
==Management==
*Discontinuation of offending agent
==Disposition==
==Outcome==
*Generally good, usually with no long term sequelae
==See Also==
*[[Meningitis]]
==References==
<references/>
[[Category:ID]]
[[Category:Pharmacology]]

Latest revision as of 16:21, 12 September 2017

Background

  • Abbreviation: DIAM
  • Two proposed mechanisms
    • Direct meningeal irritation by intrathecal drug
    • Hypersensitivity reaction to drug (type III and IV)
  • Higher predominance in SLE and female gender

Causes

Clinical Freatures

Symptoms generally occur within 24-48 hours after taking drug

Differential Diagnosis

Headache

Common

Killers

Maimers

Others

Aseptic Meningitis

Evaluation

  • Drug history with focus on time of ingestion and symptom onset
  • CSF studies
    • Pleiocytosis (primarily neutrophilic)
    • Elevated protein levels
    • Normal glucose
    • Negative cultures
  • Challenge test with suspected drug
    • Only confirmatory test
    • Requires informed written consent
    • Due to associated risk, should only be done if suspected drug is irreplaceable

Management

  • Discontinuation of offending agent

Disposition

Outcome

  • Generally good, usually with no long term sequelae


See Also

References