A cerebral arteriovenous malformation (AVM) is an abnormal connection between the arteries and veins in the brain.
The most frequently observed problems related to an AVM are headaches and seizures while at least 15% of the population at detection have no symptoms at all. Other common symptoms are a pulsing noise in the head, progressive weakness and numbness and vision changes.
In serious cases, the blood vessels rupture and there is bleeding wi...
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A cerebral arteriovenous malformation (AVM) is an abnormal connection between the arteries and veins in the brain.
The most frequently observed problems related to an AVM are headaches and seizures while at least 15% of the population at detection have no symptoms at all. Other common symptoms are a pulsing noise in the head, progressive weakness and numbness and vision changes.
In serious cases, the blood vessels rupture and there is bleeding within the brain (intracranial hemorrhage). Nevertheless in more than half of patients with AVM, hemorrhage is the first symptom. Symptoms due to bleeding include loss of consciousness, sudden and severe headache, nausea, vomiting, incontinence, and blurred vision, amongst others. Impairments caused by local brain tissue damage on the bleed site are also possible, including seizure, one-sided weakness (hemiparesis), a loss of touch sensation on one side of the body and deficits in language processing (aphasia). Minor bleeding can occur with no...
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