• J. Surg. Res. · May 2010

    Tau proteins in serum predict outcome after severe traumatic brain injury.

    • Po-Chou Liliang, Cheng-Loong Liang, Hui-Ching Weng, Kang Lu, Kuo-Wei Wang, Han-Jung Chen, and Jiin-Haur Chuang.
    • Department of Neurosurgery, E-Da Hospital, I-Shou University, Kaohsiung, Taiwan.
    • J. Surg. Res. 2010 May 15;160(2):302-7.

    BackgroundThe identification of reliable outcome predictors after traumatic brain injury (TBI) is crucial. The objective of our study was to investigate the role of tau protein as a serum marker of TBI.MethodsThirty-four patients with severe TBI (Glasgow Coma Scale [GCS] score at admission Resultstau Protein levels were higher in the poor outcome group (436.2 +/- 473.6 pg/mL) than in the good outcome group (51.6 +/- 81.5 pg/mL) (P < 0.0001). Univariate analyses demonstrated that poor outcome was significantly associated with a poor GCS score (P = 0.001), higher serum tau protein levels (P < 0.001), abnormal pupil light reflex (P = 0.013), and basal cistern compression on computed tomogram (CT) (P = 0.026). Multivariate analyses revealed that a poor GCS score (P = 0.049) and higher serum tau protein levels (P = 0.043) were independent prognostic factors for poor outcome. The receiver-operating characteristic (ROC) curve demonstrated that a tau protein level >or= 114.5 pg/mL yielded 88% sensitivity and 94% specificity for predicting a poor outcome.ConclusionsThese results suggest that in addition to GCS; serum tau protein levels may serve as indicators for the prediction of outcome following severe TBI. However; it should be viewed with caution because of the small sample size and wide standard deviations.Copyright (c) 2010 Elsevier Inc. All rights reserved.

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