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A 32-year-old member asked:

Describe the features of a brain arteriovenous malformation.?

3 doctor answers8 doctors weighed in
Dr. Bennett Werner
Cardiology 45 years experience
Often none: Unless it leaks, there would be no symptoms in most cases. Leaking can cause intense headache or stroke-like symptoms such as focal weakness, loss of speech or vision. Avm discovered after a minor stroke can be corrected before a major stroke. Family history of avm may prompt investigation in someone with no symptoms.
Dr. Robert Singer
Neurosurgery 30 years experience
Congenital: An avm is a congenital malformation of brain and possibly spinal blood vessels. They predispose those that have them to neurologic symptoms and, potentially, bleeding. A thorough neurosurgical evaluation is essentially if an avm is suspected.
Dr. William Singer
Pediatric Neurology 52 years experience
Localized deficits: A brain AVM is a connection of arteries directly to veins, without going through capilaries. When the flow increases it can produce a 'steal' effect by taking blood from surrounding tissue, resulting in an abnormality of brain fuction controled by the area of the 'steal'. another manifestation is a result of bleeding of the aVM

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Last updated Jun 19, 2015
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