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Article Dans Une Revue Neurochirurgie Année : 2021

Definition and epidemiology of mild traumatic brain injury

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Background/objectives: The definition of mild traumatic brain injury (mTBI), also known as concussion, has been a matter of controversy, which makes comparison between studies difficult. Incidence varies greatly from one country to another. The present article reviews definitions and epidemiology. Methods: Literature review. Results: According to the Mild TBI Committee of the American Congress of Rehabilitation Medicine, revised by the World Health Organization (WHO), mTBI is defined by a Glasgow Coma Scale score between 13 and 15 at 30 minutes post-injury, and one or more of the following symptoms: <30 min loss of consciousness; <24 hours post-traumatic amnesia (PTA); impaired mental state at time of accident (confusion, disorientation, etc.); and/or transient neurological deficit. If a focal lesion is found on computed tomography (CT) or magnetic resonance imaging (MRI), the term “complicated mild TBI” has been proposed. Incidence of mTBI is 200–300/100,000 persons per year for hospitalized patients and probably twice as high if non-hospitalized patients are included. However, a few recent population-based studies reported a much higher rate (>700/100,000). A changing pattern of epidemiology has been found in high-income countries, related to a decrease in road-accident injuries in young adults, while conversely the proportion of falls has increased with population aging. Conclusion: Mild TBI is a major public health concern, the epidemiology of which has greatly changed in the last twenty years.
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hal-03230885 , version 1 (09-05-2023)

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Clémence Lefevre-Dognin, Mélanie Cogné, Valérie Perdrieau, A. Granger, C. Heslot, et al.. Definition and epidemiology of mild traumatic brain injury. Neurochirurgie, 2021, 67 (3), pp.218-221. ⟨10.1016/j.neuchi.2020.02.002⟩. ⟨hal-03230885⟩
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