Synonyms
Acceleration-deceleration injury
Definition
Deceleration injury is a traumatic injury to the brain, typically following an acceleration injury to the brain in a high-speed situation such as a motor vehicle accident or high-impact sports. Deceleration injuries typically result in additive damage to an acceleration injury after the speed and inertia of momentum is obstructed. In this situation, the brain that is moving forward in the direction of inertia falls backward in the opposite direction, which may result in further compression of the underlying brain tissue and white matter connections.
Current Knowledge
Similar to acceleration injuries, primary injury in deceleration injury results in bruising, hemorrhage, and shearing of the underlying tensile strength of white matter connections deep within the brain. Secondary injury may occur hours or even days after the inciting traumatic event. Secondary effects of injury can include decreased cerebral blood flow, edema,...
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References and Readings
Barth, J. T., Freeman, J. R., Broshek, D. K., & Varney, R. N. (2001). Acceleration-deceleration sport-related concussion: The gravity of it all. Journal of Athletic Training, 36(3), 253–256.
Meythaler, J. M., et al. (2001). Current concepts: diffuse axonal injury-associated traumatic brain injury. Archives of Physical Medicine and Rehabilitation, 82, 1461–1471.
Olvey, S. E., et al. (2004). The development of a method to measure head acceleration and motion in high-impact crashes. Neurosurgery, 54, 672–677.
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Rush, B. (2018). Deceleration Injury. In: Kreutzer, J.S., DeLuca, J., Caplan, B. (eds) Encyclopedia of Clinical Neuropsychology. Springer, Cham. https://doi.org/10.1007/978-3-319-57111-9_230
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DOI: https://doi.org/10.1007/978-3-319-57111-9_230
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Publisher Name: Springer, Cham
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