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Arteriovenous Malformations

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What are Arteriovenous Malformations?

Veins carry deoxygenated blood towards the heart and the arteries carry oxygenated blood from the heart to the brain. Arteriovenous Malformations interrupt this process. Arteriovenous Malfunctions may occur in the spinal cord, brain or the brain stream. The only main cause of Arteriovenous Malfunctions is a genetic disorder passed on by parents.


People with Arteriovenous Malformations often experience the following symptoms or signs:


The cause of Arteriovenous Malformations is unknown. The veins and arteries in a patient of Arteriovenous Malformation lack proper network of capillaries and small blood vessels.


The risks of Arteriovenous Malformations include:

  • Family history
  • Being male


Prevention from Arteriovenous Malformation is not possible as doctors believe it is a congenital disease. 

How is it diagnosed?

The following tests may be used to diagnose Arteriovenous Malformations:

  • Cerebral arteriography
  • MRI scan