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Focal neurological deficits may be caused by a variety of medical conditions such as head trauma, [1] tumors or stroke; or by various diseases such as meningitis or encephalitis or as a side effect of certain medications such as those used in anesthesia. [2] Neurological soft signs are a group of non-focal neurologic signs. [3]
Focal injuries typically have symptoms that are related to the damaged area of the brain. [3] Stroke can produce focal damage that is associated with signs and symptoms that correspond to the part of the brain that was damaged. [1] For example, if a speech center of the brain such as Broca's area is damaged, problems with speech are common.
Central nervous system (CNS) depression is a physiological state that can result in a decreased rate of breathing, decreased heart rate, and loss of consciousness, possibly leading to coma or death. It is the result of inhibited or suppressed brain activity .
Global cerebral ischemia – A complete stoppage of blood flow to the brain. Cerebral infarction – A "stroke", caused by complete oxygen deprivation due to an interference in cerebral blood flow which affects multiple areas of the brain. Cerebral hypoxia can also be classified by the cause of the reduced brain oxygen: [23]
Following acquired brain injury it is common for people to experience memory loss; [6] memory disorders are one of the most prevalent cognitive deficits experienced in affected people. [6] However, because some aspects of memory are directly linked to attention, it can be challenging to assess what components of a deficit are caused by memory ...
Less common causes of expressive aphasia include primary autoimmune phenomenon and autoimmune phenomenon that are secondary to cancer (as a paraneoplastic syndrome) have been listed as the primary hypothesis for several cases of aphasia, especially when presenting with other psychiatric disturbances and focal neurological deficits. Many case ...
310.8 Other specific nonpsychotic mental disorders following organic brain damage (Include: other focal (partial) organic psychosyndromes) 310.9 Unspecified specific nonpsychotic mental disorders following organic brain damage; 311 Depressive disorder, not elsewhere classified (Include: depressive disorder NOS, depressive state NOS, depression NOS)
They can detect, localize and quantify focal interruptions along the somatosensory pathways, which may be due to any number of focal neurological problems, including trauma, compression, multiple sclerosis, tumor or other focal lesions. SEPs are also sensitive to cortical attenuation due to diffuse central nervous system (CNS