Chapter 2 traumatic brain injury research in military populations.
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Traumatic brain injury (TBI) in all of its forms--blast, concussive, and penetrating--has been an unfortunate sequela of warfare since ancient times. The continued evolution of military munitions and armor on the battlefield, as well as the insurgent use of improvised explosive devices, has led to blast-related TBI whose long-term effects on behavior and cognition are not yet known. Advances in medical care have greatly increased survival from these types of injuries. Therefore, an understanding of the potential health effects of TBI is essential. This review focuses on specific aspects of military-related TBI. There exists a large body of literature reporting the environmental conditions, forces, and staging of injury. Many of these studies are focused on the neuropathology of TBI, due to blast overpressure waves, and the emergence of large numbers of mild blast-related TBI cases.