acute bacterial meningitis


Also found in: Acronyms.

bacterial meningitis

Meningeal inflammation caused by bacteria which, if untreated, is often fatal, or associated with significant sequelae.
 
Epidemiology
60% are community acquired (C), 40% nosocomial (N); predisposing factors:
• Recent neurosurgery/use of neurosurgical devices—60% N;
• Immune dysfunction—20.5% N, 7.5% C;
• CSF leak—8.6% N, 3% C;
• Head injury—8.6% N, 3.5% C;
• Acute or chronic otitis media—< 1% N, 10% C;
• Others—Sinusitis, pneumonia, endocarditis, diabetes, alcoholism.

Microbiology
Haemophilus influenzae > Streptococcus pneumoniae > Neisseria meningitidis.

Management
Antibiotics and dexamethasone.

Mortality
± 25%; highest in those > age 60, obtunded at presentation or with seizures in past 24 hours.

acute bacterial meningitis

See Bacterial meningitis.
References in periodicals archive ?
Both our patients presented with gastrointestinal manifestations of Strongyloides hyperinfection but the symptoms were subtle and overshadowed by the features of acute bacterial meningitis.
Additional markers that may assist in the diagnosis of acute bacterial meningitis exist, but their diagnostic role in the current guidelines is modest.
Clinical features and independent prognostic factors for acute bacterial meningitis in adults.
Meningitis registry of hospitalized cases in children: epidemiological patterns of acute bacterial meningitis throughout a 32-year period.
Risk factors analysis for early fatality in children with acute bacterial meningitis.
She died, aged 37, from acute bacterial meningitis in 1999.
Long term sequelae of childhood acute bacterial meningitis in a developing country.
Efficacy of Dexamethasone as a Complementary Therapy in Acute Bacterial Meningitis Due to Streptococcus pneumoniae in adults
2002;347:1549-56) has demonstrated that adjunctive dexamethasone improved outcomes in adults with acute bacterial meningitis, giving us evidence-based medicine to back this treatment, she said.
And in January, Joanna Watson, aged 15, of Yardley Wood Road, Yardley Wood, died from acute bacterial meningitis after collapsing at home.

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