Serum procalcitonin in viral and bacterial meningitis

Background: In children with meningitis, there is a difficulty to verify the etiology as viral or bacterial. Therefore, intensive research has been carried out to find new and rapid diagnostic methods for differentiating bacterial from viral meningitis. Objectives: The aim of this work was to study...

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Main Authors: Usama M Alkholi, Nermin Abd Al-monem, Ayman A Abd El-Azim, Mohamed H Sultan
Format: Article
Language:English
Published: Wolters Kluwer Medknow Publications 2011-01-01
Series:Journal of Global Infectious Diseases
Subjects:
Online Access:http://www.jgid.org/article.asp?issn=0974-777X;year=2011;volume=3;issue=1;spage=14;epage=18;aulast=Alkholi
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author Usama M Alkholi
Nermin Abd Al-monem
Ayman A Abd El-Azim
Mohamed H Sultan
author_facet Usama M Alkholi
Nermin Abd Al-monem
Ayman A Abd El-Azim
Mohamed H Sultan
author_sort Usama M Alkholi
collection DOAJ
description Background: In children with meningitis, there is a difficulty to verify the etiology as viral or bacterial. Therefore, intensive research has been carried out to find new and rapid diagnostic methods for differentiating bacterial from viral meningitis. Objectives: The aim of this work was to study the behavior of procalcitonin (PCT) and whether it can be used to differentiate children with bacterial from those with viral meningitis. We also compared PCT to C-reactive protein (CRP) and white blood cell count. Patients and Methods: Forty children aged from 4 months to 12 years with clinically suspected meningitis were studied. Lumbar punctures were done for all cases before starting initial antibiotic treatment. According to the results of bacterial cultures and cerebrospinal fluid (CSF) cytochemical profile, our patients were classified into two groups: bacterial meningitis group and viral meningitis group. PCT, CRP, and leukocyte count were measured at the time of admission and after 3 days. Results: PCT levels were significantly higher in patients with bacterial meningitis (mean, 24.8 ng/ml) compared to patients with viral meningitis (mean, 0.3 ng/ml) (P<0.001). PCT levels in bacterial meningitis group decreased after 3 days of starting treatment, but remained higher than viral meningitis group (mean, 10.5 ng/ml). All CSF parameters, blood leukocytes, and CRP showed overlapping values between the two groups. Serum PCT with cut off value >2 ng/ml showed sensitivity, specificity, positive predictive value, and negative predictive value of 100%, 66%, 68%, and 100%, respectively, for the diagnosis of bacterial meningitis. Conclusion: Serum procalcitonin level has a better diagnostic and prognostic value than CRP or leukocyte count to distinguish between bacterial and viral meningitis. It is also a good indicator of the efficacy of treatment of bacterial meningitis.
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spelling doaj.art-fd6d89979c394a7e91913bc6fa3e1bc62022-12-21T22:22:12ZengWolters Kluwer Medknow PublicationsJournal of Global Infectious Diseases0974-777X2011-01-0131141810.4103/0974-777X.77290Serum procalcitonin in viral and bacterial meningitisUsama M AlkholiNermin Abd Al-monemAyman A Abd El-AzimMohamed H SultanBackground: In children with meningitis, there is a difficulty to verify the etiology as viral or bacterial. Therefore, intensive research has been carried out to find new and rapid diagnostic methods for differentiating bacterial from viral meningitis. Objectives: The aim of this work was to study the behavior of procalcitonin (PCT) and whether it can be used to differentiate children with bacterial from those with viral meningitis. We also compared PCT to C-reactive protein (CRP) and white blood cell count. Patients and Methods: Forty children aged from 4 months to 12 years with clinically suspected meningitis were studied. Lumbar punctures were done for all cases before starting initial antibiotic treatment. According to the results of bacterial cultures and cerebrospinal fluid (CSF) cytochemical profile, our patients were classified into two groups: bacterial meningitis group and viral meningitis group. PCT, CRP, and leukocyte count were measured at the time of admission and after 3 days. Results: PCT levels were significantly higher in patients with bacterial meningitis (mean, 24.8 ng/ml) compared to patients with viral meningitis (mean, 0.3 ng/ml) (P<0.001). PCT levels in bacterial meningitis group decreased after 3 days of starting treatment, but remained higher than viral meningitis group (mean, 10.5 ng/ml). All CSF parameters, blood leukocytes, and CRP showed overlapping values between the two groups. Serum PCT with cut off value >2 ng/ml showed sensitivity, specificity, positive predictive value, and negative predictive value of 100%, 66%, 68%, and 100%, respectively, for the diagnosis of bacterial meningitis. Conclusion: Serum procalcitonin level has a better diagnostic and prognostic value than CRP or leukocyte count to distinguish between bacterial and viral meningitis. It is also a good indicator of the efficacy of treatment of bacterial meningitis.http://www.jgid.org/article.asp?issn=0974-777X;year=2011;volume=3;issue=1;spage=14;epage=18;aulast=AlkholiC-reactive proteinMeningitisProcalcitonin
spellingShingle Usama M Alkholi
Nermin Abd Al-monem
Ayman A Abd El-Azim
Mohamed H Sultan
Serum procalcitonin in viral and bacterial meningitis
Journal of Global Infectious Diseases
C-reactive protein
Meningitis
Procalcitonin
title Serum procalcitonin in viral and bacterial meningitis
title_full Serum procalcitonin in viral and bacterial meningitis
title_fullStr Serum procalcitonin in viral and bacterial meningitis
title_full_unstemmed Serum procalcitonin in viral and bacterial meningitis
title_short Serum procalcitonin in viral and bacterial meningitis
title_sort serum procalcitonin in viral and bacterial meningitis
topic C-reactive protein
Meningitis
Procalcitonin
url http://www.jgid.org/article.asp?issn=0974-777X;year=2011;volume=3;issue=1;spage=14;epage=18;aulast=Alkholi
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AT aymanaabdelazim serumprocalcitonininviralandbacterialmeningitis
AT mohamedhsultan serumprocalcitonininviralandbacterialmeningitis