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Cerebral edema is commonly seen in a variety of brain injuries including ischemic stroke, subarachnoid hemorrhage, traumatic brain injury, subdural, epidural, or intracerebral hematoma, hydrocephalus, brain cancer, brain infections, low blood sodium levels, high altitude, and acute liver failure.
Subdural hematomas may cause an increase in the pressure inside the skull, which in turn can cause compression of and damage to delicate brain tissue. Acute subdural hematomas are often life-threatening. Chronic subdural hematomas have a better prognosis if properly managed
These factors cause the brain to swell with fluid, resulting in severe impairment. [15] If the swelling is untreated, it causes death by brain herniation. [4] The brain swelling is likely a result of vasogenic edema, the penetration of the blood–brain barrier by fluids. [16] This process has been observed in MRI studies.
An increase in pressure, most commonly due to head injury leading to intracranial hematoma or cerebral edema, can crush brain tissue, shift brain structures, contribute to hydrocephalus, cause brain herniation, and restrict blood supply to the brain. [13] It is a cause of reflex bradycardia. [14]
The cause of death: cerebral edema, a swelling of the brain brought on after Lee had taken too much aspirin." It also mentioned that toward the end of his life, Lee had suffered "several public ...
Neurological collapse can occur within a short period, [12] with rapid onset of dilating pupils, loss of eye movement, unconsciousness, and respiratory failure. [11] Failure of the brain stem frequently occurs between two and five minutes after the second impact, [1] [2] [11] and death can follow shortly. [8]
Researchers studying the brain’s final moments have gained new insight into the “wave of death” that occurs before a brain’s activity fully flatlines. When neural activity stops, it doesn ...
[7] [50] Perihematomal edema, or secondary edema surrounding the hematoma, is associated with secondary brain injury, worsening neurological function and is associated with poor outcomes. [7] Intraventricular hemorrhage, or bleeding into the ventricles of the brain, which may occur in 30–50% of patients, is also associated with long-term ...