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Arch Dis Child. 2020 Feb 28. pii: archdischild-2019-317960. doi: 10.1136/archdischild-2019-317960. [Epub ahead of print]

Accuracy of cerebrospinal fluid ferritin for purulent meningitis.

Author information

1
Postgraduate Program in Pediatrics and Child Health, Pontificia Universidade Catolica do Rio Grande do Sul, Porto Alegre, Brazil.
2
Universidade Federal de Santa Maria, Santa Maria, Brazil.
3
Postgraduate Program in Pediatrics and Child Health, Pontificia Universidade Catolica do Rio Grande do Sul, Porto Alegre, Brazil cristiantonial@gmail.com.
4
Pediatric Intensive Care Unit, Sidra Medical and Research Center, Doha, Qatar.

Abstract

OBJECTIVE:

To evaluate the use of cerebrospinal fluid (CSF) ferritin levels in the diagnosis of purulent meningitis (PM).

METHOD:

We studied 81 children between 28 days and 12 years of age who presented with clinical suspicion of meningitis to the emergency department. CSF ferritin levels were measured and compared between diagnostic groups (PM, aseptic meningitis (AM) and no meningitis).

RESULTS:

The median age was 24 (IQR 8-69) months. There were 32 patients with AM (39%), 23 with PM (28%) and 26 with no meningitis (32%). Median CSF ferritin was 4.2 ng/mL (IQR 3.0-6.5), 52.9 ng/mL (IQR 30.7-103 ng/mL) and 2.4 ng/mL (IQR 2-4), respectively. CSF ferritin was higher in children with PM compared with AM (p<0.001) or no meningitis (p<0.001). There was no difference between AM and no meningitis.

CONCLUSION:

CSF ferritin may be a useful biomarker to discriminate PM in children with clinical symptoms of this disease.

KEYWORDS:

biomarker; cerebrospinal fluid; ferritin; meningitis

Conflict of interest statement

Competing interests: None declared.

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