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Symptoms of brain injuries can also be influenced by the location of the injury and as a result, impairments are specific to the part of the brain affected. Lesion size is correlated with severity, recovery, and comprehension. [16] Brain injuries often create impairment or disability that can vary greatly in severity.
Closed-head injuries are caused primarily by vehicular accidents, falls, acts of violence, and sports injuries. [4] Falls account for 35.2% of brain injuries in the United States, with rates highest for children ages 0–4 years and adults ages 75 years and older. [3] Head injuries are more common in men than women across every age group. [3]
Brain injury; Other names: Brain damage, neurotrauma: A CT of the head years after a traumatic brain injury showing an empty space where the damage occurred, marked by the arrow: Specialty: Neurology: Symptoms: Depending on brain area injured: Types: Acquired brain injury (ABI), traumatic brain injury (TBI), focal or diffuse, primary and secondary
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The name of the condition includes the word "posterior" because it predominantly, though not exclusively, affects the back of the brain (the parietal and occipital lobes). Common underlying causes are severely elevated blood pressure , kidney failure , severe infections , certain medications, some autoimmune diseases , and pre-eclampsia .
SIS is a potential complication from an athlete returning to a game before symptoms from a minor head injury have subsided. [4] Such symptoms include headache, cognitive difficulties, or visual changes. [1] The initial injury may be a concussion, or it may be another, more severe, type of head trauma, such as cerebral contusion. [5]
Mild brain injury-related factors that increase the risk for persisting post-concussion symptoms include an injury associated with acute headache, dizziness, or nausea; an acute Glasgow Coma Score of 13 or 14; and having another head injury before recovering from the first. [16]
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]