A biomarker test based on the presence of two proteins in the blood appears to be suitable for ruling out significant intracranial injuries in patients with a history of mild traumatic brain injury (TBI) without the need for a CT head scan, according to data presented at the annual meeting of the American College of Emergency Physicians. A biomarker suitable for ruling out significant brain injury could save substantial resources because only about 10% of patients with mild TBI have a positive CT head scan, according to Jeffrey J. Bazarian, MD, professor of emergency medicine, University of Rochester (New York). In the ALERT-TBI study, which evaluated the biomarker test, 1,959 patients with suspected TBI at 22 participating EDs in the United States and Europe were enrolled and available for analysis. All had mild TBI as defined as a Glasgow Coma Scale (GCS) score of 13-15.

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