alexa Serum procalcitonin levels in bacterial and abacterial meningitis.
Infectious Diseases

Infectious Diseases

Journal of Meningitis

Author(s): Schwarz S, Bertram M, Schwab S, Andrassy K, Hacke W

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Abstract OBJECTIVES: To test the hypothesis that serum procalcitonin (PCT) levels are elevated in patients with bacterial meningitis and remain within normal limits in patients with abacterial meningitis. DESIGN: Prospective case series. SETTING: Tertiary care center. PATIENTS: A total of 30 patients (13 men and 17 women) with a mean age of 52 yrs, having acute bacterial (n = 16) or abacterial (n = 14) meningitis. INTERVENTIONS: Blood and cerebrospinal fluid samples. MEASUREMENTS AND MAIN RESULTS: Patients with abacterial meningitis were younger and had a shorter hospital stay. Of 16 patients with bacterial meningitis, 14 were in a septic condition at admission, but only 5 of 14 patients with abacterial meningitis were in a septic condition at admission. At discharge, 12 patients were without symptoms, 9 patients were moderately disabled, and 9 were severely disabled. No patient died. At admission, PCT, C-reactive protein, white blood cell and cerebrospinal fluid leukocyte counts, and cerebrospinal fluid protein and lactate levels were higher and the serum/cerebrospinal fluid glucose quotient was lower in patients with bacterial meningitis as compared with those with abacterial meningitis (p < .001). PCT was the variable with the highest specificity for bacterial infections (100\%), but there were false-negative findings in five patients with bacterial meningitis (a sensitivity of 69\%). Persistently elevated or increasing PCT levels after 2 days were associated with an unfavorable clinical course. CONCLUSIONS: Our results indicate that PCT is a useful additional variable for distinguishing bacterial from abacterial meningitis. In patients with abacterial meningitis, PCT levels do not increase even in cases of viral sepsis. Elevated PCT levels indicate a bacterial origin with high specificity, but false-negative results can occur.
This article was published in Crit Care Med and referenced in Journal of Meningitis

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