• Jun Namiki, Motoyasu Yamazaki, Tomohiro Funabiki, and Shingo Hori.
• Department of Emergency and Critical Care Medicine, Keio University School of Medicine, Shinanomachi 35, Shinjuku, Tokyo 160-8582, Japan. namiki@sc.itc.keio.ac.jp
• Clin Neurol Neurosurg. 2011 Jun 1;113(5):393-8.

ObjectivesAppropriate triage of a large number of patients with head injury is crucial in the emergency department (ED) as well as in the field. Traumatic brain injury (TBI) is primarily assessed using the Glasgow Coma Scale (GCS) to evaluate consciousness. However, GCS score assignment is far from sufficiently reliable for correct assessment, especially with inexperienced users. The purpose of this study was to reveal what factors are misjudged when assessed by inexperienced medical personnel.MethodsWe analyzed GCS eye, verbal, and motor response (EVM) scoring profiles conducted by postgraduate year 1 junior residents (n=94) before they began residency in specific departments. GCS assessment was tested using a video simulation that portrayed mock patients with eight different levels of consciousness that are frequently encountered in trauma patients.ResultsOn average, 26±18% of examinees failed to provide the correct EVM profiles for the eight selected consciousness levels. Primary misjudged GCS factors belonged to two categories: the assessment of "confused conversation (V4)", and the assessment of "withdrawal motor response (M4)".ConclusionAdditional instruction regarding the specific misjudged factors identified in this study may help inexperienced medical personnel improve the reliability of GCS score assignment to casualties with TBI.Copyright © 2011 Elsevier B.V. All rights reserved.

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