A service of the U.S. National Library of Medicine
National Institutes of Health
National Institutes of Health
Arteriovenous Malformations
Also called: AVM
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.
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
MEDICAL ENCYCLOPEDIA
National Institutes of Health
- The primary NIH organization for research on Arteriovenous Malformations is the National Institute of Neurological Disorders and Stroke
Start Here
- Arteriovenous Malformation(National Institute of Neurological Disorders and Stroke) - Short Summary
Overviews
- Arteriovenous Malformations and Other Vascular Lesions of the Central Nervous System(National Institute of Neurological Disorders and Stroke)
- Also available in Spanish
- What Is an Arteriovenous Malformation (AVM)?(American Stroke Association)
-
Diagnosis/Symptoms
- Catheter Angiography(American College of Radiology, Radiological Society of North America)
- Also available in Spanish
- CT Angiography (CTA)(American College of Radiology, Radiological Society of North America)
- Also available in Spanish
- MR Angiography (MRA)(American College of Radiology, Radiological Society of North America)
- Also available in Spanish
- Ultrasound -- Vascular(American College of Radiology, Radiological Society of North America)
- Also available in Spanish
-
Treatment
- Catheter Embolization(American College of Radiology, Radiological Society of North America)
- Also available in Spanish
- Gamma-Knife Radiosurgery(Mayo Foundation for Medical Education and Research)
- Intracranial Vascular Treatments(American College of Radiology, Radiological Society of North America)
-
Specific Conditions
- Arteriovenous Fistula(Mayo Foundation for Medical Education and Research)
- Brain AVM (Arteriovenous Malformation)(Mayo Foundation for Medical Education and Research)
- Congenital Vascular Malformation(Vascular Disease Foundation) - PDF
- Familial Cavernous Malformations (CCM) - Common Hispanic Mutation(Rare Diseases Clinical Research Network)
- Hereditary Hemorrhagic Telangiectasia - HHT(Society of Interventional Radiology)
- Return to top
-
Related Issues
- Hereditary Hemorrhagic Telangiectasia (HHT) and Pulmonary Hypertension(Pulmonary Hypertension Association) - PDF
- Klippel-Trenaunay Syndrome (KTS)(National Institute of Neurological Disorders and Stroke) - Short Summary
- Return to top
-
Clinical Trials
- ClinicalTrials.gov: Arteriovenous Malformations(National Institutes of Health)
- Return to top
-
Genetics
- 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)
- Return to top
-
Journal Articles
References and abstracts from MEDLINE/PubMed (National Library of Medicine)- Article: Unexpected silent infarctions after embolization of cerebral arteriovenous malformations and...
- Article: Expression of endoglin (CD105) and endothelial nitric oxide synthase in...
- Article: Spinal aneurysms: clinicoradiological features and management paradigms.
- Arteriovenous Malformations -- see more articles
- Return to top
-
Organizations
- National Institute of Neurological Disorders and Stroke
- Also available in Spanish
- Return to top
-
Patient Handouts
- Arteriovenous malformation - cerebral
- Also available in Spanish
- Cerebral angiography
- Also available in Spanish
- Klippel-Trenaunay syndrome
- Also available in Spanish
- Osler-Weber-Rendu syndrome
- Also available in Spanish
- Pulmonary arteriovenous fistula
- Also available in Spanish
- Stereotactic radiosurgery - discharge
- Also available in Spanish
No hay comentarios:
Publicar un comentario