Biomarker S100B in plasma a screening tool for mild traumatic brain injury in an emergency department

Joëlla H. Hopman*, Juliette A. L. Santing, Kelly A. Foks, Rolf J. Verheul, Christien M. van der Linden, Crispijn L. van den Brand, Korné Jellema

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

7 Citations (Scopus)

Abstract

Introduction: A computerized tomography (CT) scan is an effective test for detecting traumatic intracranial findings after mild traumatic brain injury (mTBI). However, a head CT is costly, and can only be performed in a hospital. Objective: To determine if the addition of plasma S100B to clinical guidelines could lead to a more selective scanning strategy without compromising safety. Methods: We conducted a single center prospective cohort study at the emergency department. Patients (≥16 years) who received head CT and had a blood draw were included. The primary outcome was the accuracy of plasma S100B to predict the presence of any traumatic intracranial lesion on head CT. Results: We included 495 patients, out of the 74 patients who had traumatic intracranial lesions, 5 patients had a plasma S100B level below the cutoff value of 0.105 ug/L. For the detection of traumatic intracranial injury, S100B had a sensitivity of 0.932, a specificity of 0.157, a negative predictive value of 0.930, and a positive predictive value of 0.163. Conclusions: Among patients undergoing guideline-based CT scan for mTBI, the use of S100B, would results in a further decrease (14.8%) of CT scans but at a cost of missed injury, without clinical consequence, on CT.

Original languageEnglish
Pages (from-to)47-53
Number of pages7
JournalBrain Injury
Volume37
Issue number1
DOIs
Publication statusPublished - 2023

Bibliographical note

Funding Information:
This study was supported by Roche Diagnostics. They had no role in the design, conduct, analysis, or content of this research or article.

Publisher Copyright:
© 2022 Taylor & Francis Group, LLC.

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