期刊
BRAIN AND BEHAVIOR
卷 6, 期 11, 页码 -出版社
JOHN WILEY & SONS INC
DOI: 10.1002/brb3.545
关键词
bacterial meningitis; cerebrospinal fluid; diagnostic marker; external ventricular drain; meningitis; neurosurgical intervention; procalcitonin
ObjectivesBacterial meningitis is a severe but treatable condition. Clinical symptoms may be ambiguous and current diagnostics lack sensitivity and specificity, complicating diagnosis. Procalcitonin (PCT) is a protein that is elevated in serum in bacterial infection. We aimed to assess the value of PCT in cerebrospinal fluid (CSF) in the diagnosis of bacterial meningitis. MethodsWe included patients with bacterial meningitis, both community acquired and post neurosurgery. We included two comparison groups: patients with viral meningitis and patients who underwent lumbar punctures for noninfectious indications. We calculated mean differences and 95% confidence intervals of procalcitonin in CSF and plasma in patients with and without bacterial meningitis. ResultsAverage PCT concentrations in CSF were 0.60ngmL(-1) (95% CI: 0.29-0.92) in the bacterial meningitis group (n=26), 0.81 (95% CI: 0.33-1.28) in community-acquired meningitis (n=16) and 0.28 (95% CI: 0.10-0.45) in postneurosurgical meningitis (n=10), 0.10ngmL(-1) (95% CI: 0.08-0.12) in the viral meningitis group (n=14) and 0.08ngmL(-1) (95% CI: 0.06-0.09) in the noninfectious group (n=14). Mean difference of PCT-CSF between patients with community-acquired bacterial meningitis and with viral meningitis was 0.71ngmL(-1) (95% CI: 0.17-1.25) and 0.73ngmL(-1) (95% CI: 0.19-1.27) for community-acquired bacterial meningitis versus the noninfectious group. The median PCT CSF: plasma ratio was 5.18 in postneurosurgical and 0.18 in community-acquired meningitis (IQR 4.69 vs. 0.28). ConclusionProcalcitonin in CSF was significantly higher in patients with bacterial meningitis when compared with patients with viral or no meningitis. PCT in CSF may be a valuable marker in diagnosing bacterial meningitis, and could become especially useful in patients after neurosurgery.
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