Etiology
It is widely believed that 10-20%
of people who suffer a mild TBI develop post-concussional
disorder. However, there is no universally agreed upon etiology,
pathophysiology, definition, or diagnostic criteria for post-concussive
disorder. Lack of a proper diagnostic category for
postconcussional disorder has created difficulty for communication
between clinicians. Some symptoms are even thought to be due to
patients exaggerating their complaints because they are thought to be
“hysterical” or “malingering.”
Overall, the disorder is assumed
to be a direct and/or indirect result of an injury to the head or
brain. The etiology of the symptoms and problems typically
associated with a mild brain injury are non-specific so it is not known
if the symptoms are caused by the injury itself or if they arise from
other conditions. It is the combination of different factors that
may be the etiology for a post-concussive disorder.
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