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The posterior circulation supplies the medulla, pons, midbrain, cerebellum and (in 70-80% of people) supplies the posterior cerebellar artery to the thalamus and occipital cortex. [1] As a result, symptoms vary widely depending which brain region is predominantly affected. The term 'vertebrobasilar insufficiency' may be used to describe disease ...
Posterior circulation infarct (POCI) is a type of cerebral infarction affecting the posterior circulation supplying one side of the brain.. Posterior circulation stroke syndrome (POCS) refers to the symptoms of a patient who clinically appears to have had a posterior circulation infarct, but who has not yet had any diagnostic imaging (e.g. CT Scan) to confirm the diagnosis.
Benedikt syndrome, also called Benedikt's syndrome or paramedian midbrain syndrome, is a rare type of posterior circulation stroke of the brain, with a range of neurological symptoms affecting the midbrain, cerebellum and other related structures.
Lateral medullary syndrome is the most common form of posterior ischemic stroke syndrome. It is estimated that there are around 600,000 new cases of this syndrome in the United States alone. It is estimated that there are around 600,000 new cases of this syndrome in the United States alone.
Cerebral infarction, also known as an ischemic stroke, is the pathologic process that results in an area of necrotic tissue in the brain (cerebral infarct). [1] In mid to high income countries, a stroke is the main reason for disability among people and the 2nd cause of death. [2]
FAST is less reliable in the recognition of posterior circulation stroke. [21] Other symptoms include those that indicate a rise in intracranial pressure caused by a large mass (due to hematoma expansion) putting pressure on the brain. [15] These symptoms include headaches, nausea, vomiting, a depressed level of consciousness, stupor and death. [7]
Posterior cerebral artery syndrome is a condition whereby the blood supply from the posterior cerebral artery (PCA) is restricted, leading to a reduction of the function of the portions of the brain supplied by that vessel: the occipital lobe, the inferomedial temporal lobe, a large portion of the thalamus, and the upper brainstem and midbrain. [1]
Digital subtraction angiography is the preferred imaging modality in suspected cases of primary CNS vasculitis and has greater specificity than magnetic resonance angiography or CT angiography (which have reduced accuracy for assessment of luminal irregularities of medium sized vessels or the posterior circulation of the brain). [5]