Levels Of Interleukin-1 Beta, Interleukin-18, And Tumor Necrosis Factor-Alpha In Cerebrospinal Fluid Of Aneurysmal Subarachnoid Hemorrhage Patients May Be Predictors Of Early Brain Injury And Clinical Prognosis
WORLD NEUROSURGERY(2018)
摘要
BACKGROUND: Aneurysmal subarachnoid hemorrhage (aSAH) is a severe cerebrovascular accident with high morbidity and mortality. The aim of this study is to investigate the relationship between level of inflammatory cytokines in cerebrospinal fluid (CSF) of aSAH patients, the severity of aSAH, and the outcome of aSAH patients.METHODS: aSAH patients were prospectively included and followed-up for 6 months. CSF samples were collected at 1-3, 4-6, and 7-9 days after aSAH onset. Levels of interleukin (IL)-1 beta, IL-18, and tumor necrosis factor-alpha (TNF-alpha) in the CSF of aSAH patients were measured by enzyme-linked immunosorbent assay.RESULTS: Eighty-one aSAH patients were enrolled. The levels of IL-1 beta, IL-18 and TNF-alpha in the CSF were especially higher in the group of aSAH patients with cerebral edema, cerebral vasospasm, and a high grade on Hunt-Hess scale, the high World Federation of Neurological Surgeons grades, and Fisher grade (P < 0.01). Higher levels of plasma C-reactive protein in the blood were correlated with poor outcome. The areas under the receiver operating characteristic curves for the levels of inflammatory cytokines in CSF were 0.85, 0.84, and 0.95, respectively. Clinical features (age, Hunt-Hess grade, etc.) were positively correlated with poor outcomes (P < 0.05).CONCLUSIONS: The levels of IL-1 beta, IL-18, and TNF-alpha in CSF were elevated in aSAH patients and were positively associated with cerebral edema and acute hydrocephalus. Our findings suggest that CSF inflammatory cytokines might be biomarkers to assess severity and predict outcomes.
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关键词
Early brain injury,Inflammatory cytokines,Outcome,Subarachnoid hemorrhage
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