The PreTBI II study aims to investigate the diagnostic potential of prehospital S100B and GFAP measurements in prediction of need for neurosurgical observation and/or intervention in moderate TBI patients, to rule-in high-risk patients. Ultimately to select patients who will benefit from neuro surgical expertise in specialized departments and thereby possibly better patient outcome. Hopefully also minimize treatment delay, secure optimal resource consumption and streamline patient courses by predicting the presence of neurotrauma. Hypotheses: 1. A prehospital serum S100B level \> 0,10 microgram/L and expectedly above a certain and currently unknown cut-off value indicates the need for neurosurgical observation and/or intervention in moderate TBI patients. 2. A prehospital serum GFAP level above a certain and currently unknown cut-off value can significantly predict a need for urgent neurosurgical observation and/or intervention in moderate TBI patients. 3. Biomarker dynamics between prehospital and in-hospital biomarker values of S100B and GFAP can significantly predict a need for urgent neurosurgical observation and/or intervention. 4. Biomarker dynamics between prehospital and in-hospital biomarker values of S100B and GFAP can significantly predict hospital course and outcome of patients with moderate TBI.
Study Type
OBSERVATIONAL
Enrollment
22
Blood sampling from peripheral venous catheter routinely inserted in trauma patients during transportation
Prehospital Emergency Medical Services, Central Denmark Region
Aarhus N, Denmark
Sensitivity of se-S100B in relation to a binary outcome measured by a yes/no question of "need for neurosurgical observation and/or intervention" pick yes/no
Time frame: in relation to event within 7 days of trauma
Specificity of se-S100B in relation to a binary outcome measured by a yes/no question of "need for neurosurgical observation and/or intervention" pick yes/no
Time frame: in relation to event within 7 days of trauma
Positive predictive value of se-S100B in relation to a binary outcome measured by a yes/no question of "need for neurosurgical observation and/or intervention" pick yes/no
Time frame: in relation to event within 7 days of trauma
Negative predictive value of se-S100B in relation to a binary outcome measured by a yes/no question of "need for neurosurgical observation and/or intervention" pick yes/no
Time frame: in relation to event within 7 days of trauma
Sensitivity of se-GFAP in relation to a binary outcome measured by a yes/no question of "need for neurosurgical observation and/or intervention" pick yes/no
Time frame: in relation to event within 7 days of trauma
Specificity of se-GFAP in relation to a binary outcome measured by a yes/no question of "need for neurosurgical observation and/or intervention" pick yes/no
Time frame: in relation to event within 7 days of trauma
Positive predictive value of se-GFAP in relation to a binary outcome measured by a yes/no question of "need for neurosurgical observation and/or intervention" pick yes/no
Time frame: in relation to event within 7 days of trauma
Negative predictive value of se-GFAP in relation to a binary outcome measured by a yes/no question of "need for neurosurgical observation and/or intervention" pick yes/no
Time frame: in relation to event within 7 days of trauma
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