• World Neurosurg · Feb 2020

    YKL-40, SAA1, CRP and PCT are promising biomarkers for intracranial severity assessment of traumatic brain injury: Relationship with Glasgow Coma Scale and CT volumetry.

    • Cristina Sánchez Carabias, Pedro A Gomez, Irene Panero, Carla Eiriz, Ana María Castaño-León, Javier Egea, Alfonso Lagares, and i+12 Neurotraumatology Group Collaborators.
    • Neurotraumatology and Subarachnoid Hemorrhage Research Unit, Instituto de Investigación Hospital 12 de Octubre (i+12), Madrid, Spain. Electronic address: csanchezcarabias@gmail.com.
    • World Neurosurg. 2020 Feb 1; 134: e120-e143.

    ObjectiveThe volume and location of intracranial hematomas are well-known prognostic factors for traumatic brain injury. The aim of this study was to determine the relationship of serum biomarkers S100β, glial fibrillary acidic protein, neuron-specific enolase, total tau, phosphorylated neurofilament heavy chain, serum amyloid A1 (SAA1), C-reactive protein, procalcitonin (PCT), and chitinase-3-like protein 1 (YKL-40) with traumatic brain injury severity and the amount and location of hemorrhagic traumatic lesions.MethodsA prospective observational cohort of 115 patients with a Glasgow Coma Scale (GCS) score of 3-15 were evaluated. Intracranial lesion volume was measured from the semiautomatic segmentation of hematoma on computed tomography using Analyze software. The establishment of possible biomarker cutoff points for intracranial lesion detection was estimated using the Youden Index (J) obtained from the area under the receiver operating characteristic curve.ResultsSAA1, YKL-40, PCT, and S100β showed the most robust association with level of consciousness, both with total GCS and motor score. Biomarkers significantly correlated with volumetric measurements of subdural hematoma, traumatic subarachnoid hemorrhage, intraparenchymal hemorrhage, intraventricular hemorrhage, and total amount of bleeding. The type of intracranial hemorrhage was associated with various release patterns of neurobiochemical markers.ConclusionsYKL-40, SAA1, C-reactive protein, and PCT combined with S100β were the most promising biomarkers to determine the presence, location, and extent of traumatic intracranial lesions. Combination of biomarkers further increased the discriminatory capacity for the detection of intracranial bleeding.Copyright © 2019 Elsevier Inc. All rights reserved.

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