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Arteriovenous Malformations

Also called: AVM
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Summary

Arteriovenous malformations (AVMs) are defects in your vascular system. The vascular system includes arteries, veins, and capillaries. Arteries carry blood away from the heart to other organs; veins carry blood back to the heart. Capillaries connect the arteries and veins. An AVM is a snarled tangle of arteries and veins. They are connected to each other, with no capillaries. That interferes with the blood circulation in an organ.

AVMs can happen anywhere, but they are more common in the brain or spinal cord. Most people with brain or spinal cord AVMs have few, if any, major symptoms. Sometimes they can cause seizures or headaches.

AVMs are rare. The cause is not known, but they seem to develop during pregnancy or soon after birth. Doctors use imaging tests to detect them.

Medicines can help with the symptoms from AVMs. The greatest danger is hemorrhage. Treatment for AVMs can include surgery or focused radiation therapy. Because surgery can be risky, you and your doctor need to make a decision carefully.

NIH: National Institute of Neurological Disorders and Stroke

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  • From the National Institutes of Health (National Institute of Neurological Disorders and Stroke) - Short Summary
  • From the National Institutes of Health (National Institute of Neurological Disorders and Stroke) Also in
  • (American Stroke Association)

Diagnosis and Tests

  • Video (American College of Radiology, Radiological Society of North America) Also in
  • (American College of Radiology, Radiological Society of North America) Also in
  • (American College of Radiology, Radiological Society of North America) Also in
  • (American College of Radiology, Radiological Society of North America) Also in

Treatments and Therapies

  • (American College of Radiology, Radiological Society of North America) Also in
  • (American College of Radiology, Radiological Society of North America) Also in

Related Issues

  • (Pulmonary Hypertension Association) - PDF
  • From the National Institutes of Health (National Institute of Neurological Disorders and Stroke)

Specifics

  • (Mayo Foundation for Medical Education and Research) Also in
  • (Mayo Foundation for Medical Education and Research)
  • (Rare Diseases Clinical Research Network)
  • (Vascular Disease Foundation) - PDF
  • (Society of Interventional Radiology)

Genetics

  • From the National Institutes of Health (National Library of Medicine)
  • From the National Institutes of Health (National Library of Medicine)
  • From the National Institutes of Health (National Library of Medicine)

Clinical Trials

  • From the National Institutes of Health (National Institutes of Health)

Journal Articles References and abstracts from MEDLINE/PubMed (National Library of Medicine)

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  • From the National Institutes of Health Also in

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