Arteriovenous Malformations Update
MedlinePlus sent this bulletin at 04/20/2016 01:10 PM EDTNew on the MedlinePlus Arteriovenous Malformations page:
04/13/2016 02:39 PM EDT
Source: National Library of Medicine - 
04/13/2016 02:39 PM EDT
Source: National Library of Medicine -
National Institutes of Health
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
- Arteriovenous Malformation (National Institute of Neurological Disorders and Stroke) - Short Summary
- Arteriovenous Malformations and Other Vascular Lesions of the Central Nervous System (National Institute of Neurological Disorders and Stroke)Available in Spanish
- What Is an Arteriovenous Malformation (AVM)? (American Stroke Association)
- Catheter Angiography (Radiological Society of North America, American College of Radiology)Available in Spanish
- CT Angiography (CTA) (Radiological Society of North America, American College of Radiology)Available in Spanish
- MR Angiography (MRA) (Radiological Society of North America, American College of Radiology)Available in Spanish
- Ultrasound -- Vascular (Radiological Society of North America, American College of Radiology)Available in Spanish
- Catheter Embolization (Radiological Society of North America, American College of Radiology)Available in Spanish
- Gamma-Knife Radiosurgery (Mayo Foundation for Medical Education and Research)
- Intracranial Vascular Treatments (Radiological Society of North America, American College of Radiology)Available in Spanish
- Hereditary Hemorrhagic Telangiectasia (HHT) and Pulmonary Hypertension (Pulmonary Hypertension Association) - PDF
- Klippel-Trenaunay Syndrome (KTS) (National Institute of Neurological Disorders and Stroke) - Short Summary
- Arteriovenous Fistula (Mayo Foundation for Medical Education and Research)
- Brain AVM (Arteriovenous Malformation) (Mayo Foundation for Medical Education and Research)
- Cerebral Cavernous Malformations (CCM) (Rare Diseases Clinical Research Network)
- Congenital Vascular Malformation (Vascular Disease Foundation) - PDF
- Hereditary Hemorrhagic Telangiectasia - HHT (Society of Interventional Radiology)
- Genetics Home Reference: capillary malformation-arteriovenous malformation syndrome (National Library of Medicine)
- Genetics Home Reference: hereditary hemorrhagic telangiectasia (National Library of Medicine)
- Genetics Home Reference: Parkes Weber syndrome (National Library of Medicine)
- ClinicalTrials.gov: Arteriovenous Malformations (National Institutes of Health)
- Cerebral angiography Available in Spanish
- Cerebral arteriovenous malformation Available in Spanish
- Klippel-Trenaunay syndrome Available in Spanish
- Osler-Weber-Rendu syndrome Available in Spanish
- Pulmonary arteriovenous fistula Available in Spanish
- Stereotactic radiosurgery - discharge Available in Spanish
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