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PSH is observed more in younger patients than older ones. It is also seen more commonly in men than women. [2] There is no known reason why this is the case, although it is suspected that pathophysiological links exist. In patients surviving traumatic brain injury, the occurrence of these episodes is one in every three.
Patients report that their episodes are at best only partially amenable to voluntary control, and unless they experience a severe change of mental status, as in traumatic brain injury they often have insight into their problem and judge their emotional displays as inappropriate and out of character. The clinical effect of PBA can be severe ...
Traumatic brain injury (TBI, physical trauma to the brain) can cause a variety of complications, health effects that are not TBI themselves but that result from it. The risk of complications increases with the severity of the trauma; [1] however even mild traumatic brain injury can result in disabilities that interfere with social interactions, employment, and everyday living. [2]
According to Pimsleur, "Foreign Language Syndrome occurs after a serious accident or injury to the brain renders victims unconscious. When the patients come around they find themselves talking in ...
The brain sustains irreversible injury after about 20 minutes of ischemia. [4] Even after blood flow is restored to the brain, patients can experience hours-days of hypotension, hypoxemia, impaired cerebrovascular autoregulation, brain edema, fever, hyperglycemia and/or seizures which further insult brain tissue. [5]
A traumatic brain injury (TBI), also known as an intracranial injury, is an injury to the brain caused by an external force. TBI can be classified based on severity ranging from mild traumatic brain injury (mTBI/concussion) to severe traumatic brain injury. [ 5 ]
More than 50% of patients who suffer from a traumatic brain injury will develop psychiatric disturbances. [6] Although precise rates of anxiety after brain injury are unknown, a 30-year follow-up study of 60 patients found 8.3% of patients developed a panic disorder, 1.7% developed an anxiety disorder, and 8.3% developed a specific phobia. [7]
Diffuse injury has more microscopic injury than macroscopic injury and is difficult to detect with CT and MRI, but its presence can be inferred when small bleeds are visible in the corpus callosum or the cerebral cortex. [34] MRI is more useful than CT for detecting characteristics of diffuse axonal injury in the subacute and chronic time ...