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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.
Primary injury occurs at the moment of trauma and includes contusion, damage to blood vessels, and axonal shearing, in which the axons of neurons are stretched and torn. [1] The blood brain barrier and meninges may be damaged in the primary injury, and neurons may die. [7] Cells are killed in a nonspecific manner in primary injury. [8]
Symptoms of a mild brain injury include headaches, confusions, tinnitus, fatigue, changes in sleep patterns, mood or behavior. Other symptoms include trouble with memory, concentration, attention or thinking. [3] Mental fatigue is a common debilitating experience and may not be linked by the patient to the original (minor) incident.
Symptoms of a mild brain injury include headaches, confusion, ringing ears, fatigue, changes in sleep patterns, mood or behavior. Other symptoms include trouble with memory, concentration, attention or thinking. Mental fatigue is a common debilitating experience and may not be linked by the patient to the original (minor) incident.
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]
Edema, or swelling, of the brain may occur which increases intracranial pressure and may result in brain herniation. A stroke may result in coma or death if it involves key areas of the brain. [14] Other symptoms of cerebrovascular disease include migraines, seizures, epilepsy, or cognitive decline.
This wave of activity, called a cortical spreading depression, follows a particular pattern across the brain and can create a few different patterns of light in your vision. For example, the Mayo ...
The primary and most serious complication of a spontaneous cerebrospinal fluid leak is spontaneous intracranial hypotension, where pressure in the brain is severely decreased. [ 23 ] [ 42 ] [ 54 ] This complication leads to the hallmark symptom of severe orthostatic headaches .