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Raised Proinflammatory Cytokine Production Within Cerebrospinal Fluid Precedes Fever Onset in Patients With Neurosurgery-Associated Bacterial Meningitis.

Abstract：

OBJECTIVE:The objective of the present study was to determine whether selective inflammatory cytokine concentrations within cerebrospinal fluid are useful markers for the differential diagnosis of aseptic and bacterial meningitis within neurosurgical patients. DESIGN:Prospective, open-label, observational, cohort study. SETTING:Neurosurgical ICU, Chang Gung Memorial Hospital. PATIENTS:Thirty-two consecutive neurosurgical patients who had postoperative fever following external ventricular drain insertion for the treatment of brain injury underwent serial cerebrospinal fluid cytokine analysis pre and post fever to determine the value of such markers in ascertaining the differential diagnosis of meningitis. INTERVENTION:Cerebrospinal fluid samples were collected on the day of fever onset, as well as on day 2 and 4 pre and post fever development. Tumor necrosis factor-α, interleukin-1β, interleukin-6, interleukin-8, transforming growth factor-β, and procalcitonin were subsequently analyzed using enzyme-linked immunosorbent assay analysis techniques. MEASUREMENT AND MAIN RESULTS:Inflammatory marker levels were compared among febrile aseptic, bacterial, and nonmeningitis patients to determine cerebrospinal fluid inflammatory changes over time. Significant increases in cerebrospinal fluid tumor necrosis factor -α, interleukin-1β, interleukin-6, and interleukin-8 levels were observed within patients with bacterial meningitis at fever onset, which was not evident in aseptic or nonmeningitis patients. Furthermore, significant increases in cerebrospinal fluid tumor necrosis factor-α, interleukin-1β, interleukin-6, and interleukin-8 levels were detected as early as 4 days prior to fever onset within patients with bacterial meningitis when compared with both aseptic and nonmeningitis groups. Interestingly, procalcitonin was only significantly increased in patients with bacterial meningitis on the fourth day post fever. CONCLUSION:The present study suggests that raised cerebrospinal fluid tumor necrosis factor -α, interleukin-1β, and interleukin-8 in a temporal manner may indicate early bacterial meningitis development in neurosurgical patients, enabling earlier diagnostic certainty and improved patient outcomes.

journal_name

Crit Care Med

journal_title

Critical care medicine

authors

Liu ZH,Tu PH,Chen NY,Yip PK,Bowes AL,Lee CC,Chan SH,Kung CC,Wang AY,Wu CT,Lee ST

doi

10.1097/CCM.0000000000001188

subject

Has Abstract

pub_date

2015-11-01 00:00:00

pages

2416-28

issue

eissn

0090-3493

issn

1530-0293

journal_volume

pub_type

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Raised Proinflammatory Cytokine Production Within Cerebrospinal Fluid Precedes Fever Onset in Patients With Neurosurgery-Associated Bacterial Meningitis.