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Table 3 Diagnostic value of cerebral extracellular glucose and fever for bacterial meningitis in patients with aneurysmal subarachnoid haemorrhage

From: Cerebral microdialysis for detection of bacterial meningitis in aneurysmal subarachnoid hemorrhage patients: a cohort study

 

Glucose decrease ≥ 1 mmol/L

Body temperature ≥ 38°C

Glucose decrease ≥ 1 mmol/L AND body temperature ≥ 38°C

Sensitivity

92%

83%

69%

Specificity

50%

60%

80%

Positive predictive value

20.1%

22.1%

32.0%

Negative predictive value

97.9%

96.6%

95.0%

  1. The results are displayed for a decrease in cerebral extracellular glucose of ≥ 1 mmol/L over variable time spans within the observation period, and for presence of fever ≥ 38°C. Positive and negative predictive values were calculated for a prevalence of meningitis of 12%, as found in the present study.
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Critical Care

ISSN: 1364-8535