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Cerebrovascular accident
Pronunciation
Definition 1
In medicine, a loss of blood flow to part of the brain, which damages brain tissue. Cerebrovascular accidents are caused by blood clots and broken blood vessels in the brain. Symptoms include dizziness, numbness, weakness on one side of the body, and problems with talking, writing, or understanding language. The risk of cerebrovascular accident is increased by high blood pressure, older age, smoking, diabetes, high cholesterol, heart disease, atherosclerosis (a buildup of fatty material and plaque inside the coronary arteries), and a family history of cerebrovascular accident. Also called CVA and stroke. (NCI Dictionary)
Definition 2
A sudden loss of neurological function secondary to hemorrhage or ischemia in the brain parenchyma due to a vascular event. Infarction or hemorrhage may be demonstrated either directly by imaging, laboratory, or pathologic examination in patients with symptom duration less than 24 hours, or inferred by symptoms lasting greater than or equal to 24 hours (or fatal within 24 hours) that cannot be attributed to another cause. Diagnostic tests include CT scan, MRI, angiography, and EEG to locate and evaluate the extent of the hemorrhagic or ischemic damage in the brain parenchyma, coagulation studies, complete blood count, comprehensive metabolic panel, and urinalysis. (NCI Thesaurus)
Definition 3
A disorder characterized by a sudden loss of sensory function due to an intracranial vascular event. (NCI Thesaurus/CTCAE)
Definition 4
An acute episode of focal or global neurological dysfunction caused by presumed brain, spinal cord, or retinal vascular injury as a result of hemorrhage or infarction but with insufficient information to allow categorization as ischemic or hemorrhagic. (NCI Thesaurus/CDISC)
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