• Seong-Hyun Park and Sung-Kyoo Hwang.
• Department of Neurosurgery, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, South Korea. Electronic address: nsdoctor@naver.com.
• World Neurosurg. 2018 Oct 1; 118: e534-e542.

ObjectiveTo analyze serum levels of S100 calcium-binding protein B (S100B), neuron-specific enolase (NSE), and interleukin (IL)-6 in pediatric patients with traumatic brain injury (TBI) and to assess their relationship with clinical outcome.MethodsTo measure biomarkers, peripheral venous blood was collected within 6 hours and 1 week after TBI. Initial Glasgow Coma Scale (GCS) scores and Glasgow Outcome Scale scores 6 months after the trauma were used to evaluate clinical outcome.ResultsMedian serum levels of S100B (178.12 pg/mL), NSE (16.54 ng/mL), and IL-6 (15.48 pg/mL) at admission decreased significantly 1 week after TBI to 40.86 pg/mL, 5.85 ng/mL, and 8.63 pg/mL. In the group with poor GCS scores, serum S100B and NSE levels both at admission and 1 week after TBI were significantly higher than levels in the group with good GCS scores. Serum S100B and NSE levels 1 week after injury in patients with unfavorable 6-month outcomes were significantly higher than levels 1 week after injury in patients with favorable outcomes.ConclusionsSerum levels of S100B, NSE, and IL-6 decreased 1 week after injury. Serum levels of S100B and NSE at admission were related to initial GCS scores, and these levels 1 week after TBI were related to 6-month Glasgow Outcome Scale scores. Thus, serial measurements of serum S100B and NSE, but not IL-6, may help assess brain damage and clinical outcome of pediatric patients with TBI.Copyright © 2018 Elsevier Inc. All rights reserved.

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