Waka Takahashi1, Taka-aki Nakada2, Ryuzo Abe1, Kumiko Tanaka1, Yosuke Matsumura1, Shigeto Oda1. 1. Chiba University Graduate School of Medicine, Department of Emergency and Critical Care Medicine, Chiba, Japan. 2. Chiba University Graduate School of Medicine, Department of Emergency and Critical Care Medicine, Chiba, Japan. Electronic address: taka.nakada@nifty.com.
Abstract
PURPOSE: Interleukin 6 (IL-6) is a proinflammatory cytokine produced during infections. We hypothesized that IL-6 levels in the cerebrospinal fluid (CSF) would be elevated in bacterial meningitis and useful for diagnosing and predicting neurologic outcomes. MATERIALS AND METHODS: For the differentiation of bacterial meningitis, serum and CSF samples were obtained from patients with an altered level of consciousness. Patients were classified into 3 groups: bacterial meningitis, nonbacterial central nervous system disease, and other site sepsis. RESULTS: Of the 70 patients included in this study, there were 13 in the bacterial meningitis group, 21 in the nonbacterial central nervous system disease group, and 36 in the other site sepsis group. The CSF IL-6 level was significantly higher in the bacterial meningitis group than in the other 2 groups (P<.0001). Of the 5 CSF parameters assessed, CSF IL-6 level exhibited the largest area under the receiver operating characteristic curve (0.962), with a cut-off value of 644 pg/mL (sensitivity, 92.3%; specificity, 89.5%). To examine a potential association between a high CSF level and neurologic outcome, CSF IL-6 levels were divided into 4 quartiles, and each level was compared with the frequency of a good neurologic outcome. The frequency of a good neurologic outcome was significantly lower in the highest CSF IL-6 quartile than in the other 3 quartiles (odds ratio, 0.18; 95% confidence interval, 0.05-0.69; P=.013). CONCLUSIONS: Measurement of the CSF IL-6 level is useful for diagnosing bacterial meningitis.
PURPOSE:Interleukin 6 (IL-6) is a proinflammatory cytokine produced during infections. We hypothesized that IL-6 levels in the cerebrospinal fluid (CSF) would be elevated in bacterial meningitis and useful for diagnosing and predicting neurologic outcomes. MATERIALS AND METHODS: For the differentiation of bacterial meningitis, serum and CSF samples were obtained from patients with an altered level of consciousness. Patients were classified into 3 groups: bacterial meningitis, nonbacterial central nervous system disease, and other site sepsis. RESULTS: Of the 70 patients included in this study, there were 13 in the bacterial meningitis group, 21 in the nonbacterial central nervous system disease group, and 36 in the other site sepsis group. The CSF IL-6 level was significantly higher in the bacterial meningitis group than in the other 2 groups (P<.0001). Of the 5 CSF parameters assessed, CSF IL-6 level exhibited the largest area under the receiver operating characteristic curve (0.962), with a cut-off value of 644 pg/mL (sensitivity, 92.3%; specificity, 89.5%). To examine a potential association between a high CSF level and neurologic outcome, CSF IL-6 levels were divided into 4 quartiles, and each level was compared with the frequency of a good neurologic outcome. The frequency of a good neurologic outcome was significantly lower in the highest CSF IL-6 quartile than in the other 3 quartiles (odds ratio, 0.18; 95% confidence interval, 0.05-0.69; P=.013). CONCLUSIONS: Measurement of the CSF IL-6 level is useful for diagnosing bacterial meningitis.
Authors: Daniel Molano Franco; Ingrid Arevalo-Rodriguez; Marta Roqué I Figuls; Nadia G Montero Oleas; Xavier Nuvials; Javier Zamora Journal: Cochrane Database Syst Rev Date: 2019-04-30
Authors: Federico Perdomo-Celis; Miguel A Torres; Henry Ostos; Javier Gutierrez-Achury; Víctor Molano; Luis F Durán; Guillermo González; Carlos F Narváez Journal: Biomark Insights Date: 2015-12-20
Authors: T T Thanh; C Casals-Pascual; N T H Ny; N M Ngoc; R Geskus; L N T Nhu; N T T Hong; D T Duc; D D A Thu; P N Uyen; V B Ngoc; L T M Chau; V X Quynh; N H H Hanh; N T T Thuong; L T Diem; B T B Hanh; V T T Hang; P K N Oanh; R Fischer; N H Phu; H D T Nghia; N V V Chau; N T Hoa; B M Kessler; G Thwaites; L V Tan Journal: Clin Microbiol Infect Date: 2020-07-11 Impact factor: 8.067