• Xian-Dong Chen, Jun Sun, Chuan Lu, Hua-Jun Ba, Mao-Hua Chen, Jian-Hu Lin, and Jian-Yong Cai.
• Department of Neurosurgery, The Central Hospital of Wenzhou City, 32 Dajian Lane, Wenzhou 325000, China.
• Thromb. Res. 2015 Jul 1; 136 (1): 24-9.

BackgroundIncreased circulating soluble CD40 ligand (sCD40L) levels have been reported to be associated with severity and mortality of severe traumatic brain injury. The current study tested the hypothesis that elevated plasma sCD40L levels are predictive of clinical outcomes of aneurysmal subarachnoid hemorrhage (aSAH).MethodsPlasma sCD40L concentrations of 120 aSAH patients and 120 healthy volunteers were measured using enzyme-linked immunosorbent assay. An unfavorable outcome was defined as Glasgow Outcome Scale score of 1-3.ResultsPlasma sCD40L levels were significantly elevated in aSAH patients compared with healthy controls; plasma sCD40L levels were highly associated with clinical severity reflected by World Federation of Neurological Surgeons (WFNS) score and Fisher score; sCD40L emerged as an independent predictor of 6-month mortality and unfavorable outcome and 6-month overall survival; although a combined logistic-regression model did not demonstrate the additive benefit of sCD40L to WFNS score and Fisher score, sCD40L possessed similar predictive value to WFNS score and Fisher score based on receiver operating characteristic curves.ConclusionsHigher plasma sCD40L levels on presentation are associated with clinical severity and have potential to be a good prognostic biomarker of aSAH.Copyright © 2015 Elsevier Ltd. All rights reserved.

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