Cerebrospinal fluid ferritin concentration in patients with purulent, bacterial meningitis – own observations

The aim of the study was to evaluate the usefulness of cerebrospinal fluid (CSF) ferritin concentration assessment in adults with purulent, bacterial meningoencephalitis.

The investigation was performed in 18 subjects hospitalized at the Clinical Ward of Infectious Diseases, Medical University of Silesia in Bytom from 2008 through 2012, for purulent, bacterial meningoencephalitis. The patients were divided into two groups, according to severity of their clinical condition: Group I – very severe course of the disease, group II – moderate and mild course of the disease. In all the individuals, CSF interleukin-6 concentration was evaluated during the first 24 hours of hospitalization.

Mean CSF ferritin concentration in patients in very severe clinical condition (group I) was 314.71 ng/mL as compared to 162.13 ng/mL in subjects of group II with moderate and mild course of the disease. The difference between CSF mean concentration of this cytokine was statistically significant (p<0.01). Correlations between CSF ferritin and CSF protein and lactate were determined. The control assays performed in 6 patients from group I revealed only slightly decrease of CSF ferritin level in the fatal course of the disease. In survivals with recovery CSF concentration of this protein was decreased markedly as compared to the initial level.

The obtained results indicate the usefulness of CSF ferritin concentration assessment in estimation of intensity of inflammation in the subarachnoid space, and indirectly, of severity of the patient’s clinical condition. The level of this protein concentration also seems to be helpful as a prognostic marker in purulent, bacterial meningoencephalitis.