Citation

Lefevre-Dognin C, Cogné M, Perdrieau V, Granger A, Heslot C, Azouvi P. Neurochirurgie (Paris) 2020; ePub(ePub): ePub.

Affiliation

AP-HP, Hôpital Raymond Poincaré, Service de Médecine Physique et de Réadaptation, 92380 Garches, France; EA 4047 HANDIReSP, Université de Versailles Saint Quentin en Yvelines, France.

Copyright

(Copyright © 2020, Elsevier Publishing)

DOI

10.1016/j.neuchi.2020.02.002

PMID

32387427

Abstract

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. 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.

Copyright © 2020. Published by Elsevier Masson SAS.

Language: en

Keywords

concussion; epidemiology; mild traumatic brain injury