The symptoms of<unk>  reflect the anatomical region undergoing blood and oxygen deprivation.<unk>  within the arteries branching from the internal carotid artery may result in symptoms such as blindness in one eye, weakness in one arm or leg, or weakness in one entire side of the body.<unk>  within the arteries branching from the vertebral arteries in the back of the brain may result in symptoms such as dizziness, vertigo, double vision, or weakness on both sides of the body . Other symptoms include difficulty speaking, slurred speech, and the loss of coordination. The symptoms of<unk>  range from mild to severe. Further, symptoms can last from a few seconds to a few minutes or extended periods of time. If the brain becomes damaged irreversibly and infarction occurs, the symptoms may be permanent. Similar to cerebral hypoxia, severe or prolonged<unk>  will result in unconsciousness, brain damage or death, mediated by the<unk>  cascade. Multiple cerebral<unk>  events may lead to subcortical<unk>  depression, also known as vascular depression. This condition is most commonly seen in elderly depressed patients. Late onset depression is increasingly seen as a distinct sub-type of depression, and can be detected with an MRI.
Brain ischemia
Cerebral infarction
Cerebral edema
Stroke
Brain herniation
Intracranial hemorrhage
Heat stroke
Intracerebral hemorrhage