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Accuracy of the S100β protein as a marker of brain damage in traumatic brain injury.
MedLine Citation:
PMID:  22149446     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Introduction: This study tested the hypothesis that S100β is a useful screening tool for detecting intracranial lesion (IL) in patients with a normal level of consciousness after traumatic brain injury (TBI). Methods: One hundred and forty-three post-TBI patients without a decrease in consciousness (GCS = 15) and with at least one neurological symptom (e.g. transitory loss of consciousness, amnesia, headache, dizziness or vomiting) were prospectively included. A blood sample was drawn at 6-hours post-TBI. A routine CT scan was obtained within 24 hours post-injury. Diagnostic properties of S100β for IL prediction in CT scan findings were tested using ROC-analysis. Results: A total of 15 patients (10.5%) had IL. Serum levels were significantly higher in these patients. Significant differences were found between S100β levels and CT scan findings (p = 0.007). ROC-analysis showed that S100β is a useful tool for detecting the presence of IL in CT scans (p = 0.007). In this series, the best cut-off for S100β is 0.130 µg L(-1), with 100% sensitivity and 32.81% specificity. Conclusion: Within the first 6 hours post-TBI, serum S100β seems to be an effective biochemical indicator of IL in patients without a decrease in consciousness. These results indicate that higher S100β cut-off values substantially improve the clinical relevance of this protein.
Authors:
J J Egea-Guerrero; J Revuelto-Rey; F Murillo-Cabezas; M A Muñoz-Sánchez; A Vilches-Arenas; P Sánchez-Linares; J M Domínguez-Roldán; J León-Carrión
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Brain injury : [BI]     Volume:  26     ISSN:  1362-301X     ISO Abbreviation:  Brain Inj     Publication Date:  2012  
Date Detail:
Created Date:  2011-12-13     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8710358     Medline TA:  Brain Inj     Country:  England    
Other Details:
Languages:  eng     Pagination:  76-82     Citation Subset:  IM    
Affiliation:
NeuroCritical Care Unit .
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