M Aphasia Secondary to Traumatic Head Injury

The majority of patients have been in vehicular accidents (closed head injuries), with a smaller number receiving gunshot or other penetrating wounds (open head injury). Unlike the pathophysiology of stroke, the majority of those who have suffered traumatic head injury do not have focal cerebral lesions but suffer diffuse injury to the cerebral white matter that is apparently the result of shearing and stretching of nerve fibers at the moment of impact.

Classic aphasia symptoms as a result of traumatic head injury are not uncommon, especially when there is a history of loss of consciousness. A characteristic of acute aphasia after trauma is the pervasiveness of anomia. Nonaphasic language processing deficits are a common finding in the closed head injury population. It is generally reported that aphasia secondary to head injury has a better prognosis for recovery than aphasia secondary to stroke.

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