Diffuse axonal injury (DAI) is one of the most common and devastating types of traumatic brain injury, meaning that damage occurs over a more widespread area than in focal brain injury. DAI, which refers to extensive lesions in white matter tracts, is one of the major causes of unconsciousness and persistent vegetative state after head trauma. It occurs in about half of all cases of severe head trauma and also occurs in moderate and mild brain injury.
The outcome is frequently coma, with over 90% of patients with severe DAI never regaining consciousness. Those who do wake up often remain significantly impaired.
Nowadays, other authors state that DAI can occur in every degree of severity from (very) mild or moderate to (very) severe. Concussion may be a milder type of diffuse axonal injury.
Other articles related to "diffuse axonal injury, diffuse, injury":
... Diffuse axonal injury, or DAI, usually occurs as the result of an acceleration or deceleration motion, not necessarily an impact ...
... Strich first proposed the idea in 1956, calling it diffuse degeneration of white matter, but that was too long so they just call it, "Diffuse axonal injury", or ...
... Damage from TBI can be focal or diffuse, confined to specific areas or distributed in a more general manner, respectively ... However, it is common for both types of injury to exist in a given case ... Diffuse injury manifests with little apparent damage in neuroimaging studies, but lesions can be seen with microscopy techniques post-mortem, and in the early 2000s, researchers discovered that diffusion tensor ...
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