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Topic: Arteriovenous malformation


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In the News (Mon 27 May 19)

  
  Arteriovenous Malformation - Cerebral - Health Encyclopedia News Story - WNBC | New York
A cerebral arteriovenous malformation is a birth defect in which there is an abnormal connection between the arteries and veins in the brain.
The cause of cerebral arteriovenous malformation (AVM) is unknown.
Arteriovenous malformations vary in their size and location within the brain.
www.wnbc.com /encyclopedia/6860783/detail.html   (700 words)

  
 Arteriovenous Malformations and Other Vascular Lesions of the Central Nervous System Fact Sheet: National Institute of ...
In contrast, cavernous malformations, telangiectases, and venous malformations are all low-flow lesions.
A few types of vascular malformations are known to be hereditary and thus are known to have a genetic basis.
Venous malformations and capillary telangiectases rarely require surgery; moreover, their structures are diffuse and usually not suitable for surgical correction and they usually do not require treatment anyway.
www.ninds.nih.gov /disorders/avms/detail_avms.htm   (4298 words)

  
  Birthmarks: Hemangiomas & Vascular Anomalies
Arteriovenous malformations are considered to be congenital vascular anomalies, but are usually first noted several years after birth or after certain triggering changes such as trauma or the hormonal changes of puberty or pregnancy.
Arteriovenous malformations generally enlarge in size and number (eg, a single nidus may become multiple) and may cause significant health problems as a result of progressive arteriovenous shunting resulting in high-output cardiac failure, ischemia or bleeding.
Assignment of a locus for dominantly inherited venous malformations to chromosome 9.
www.clevelandclinicmeded.com /diseasemanagement/dermatology/birthmarks/birthmarks.htm   (4519 words)

  
 WDSU.com - Health Encyclopedia - Arteriovenous Malformation - Cerebral   (Site not responding. Last check: 2007-10-20)
A cerebral arteriovenous malformation is a congenital disorder (present at birth) of the brain's blood vessels.
The cause of cerebral arteriovenous malformation (AVM) is unknown.
Arteriovenous malformations vary in their size and location within the brain.
www.wdsu.com /encyclopedia/6860783/detail.html   (1111 words)

  
 Arteriovenous malformation - Wikipedia, the free encyclopedia
Arteriovenous malformation or AVM is a congenital disorder of the veins and arteries that make up the vascular system.
The cause of this disorder is unknown, but is not generally thought to be hereditary, unless in the context of a specific hereditary syndrome.
AVMs can occur in various parts of the body including the brain (see cerebral arteriovenous malformation), spleen, lung, kidney, spinal column, and liver.
en.wikipedia.org /wiki/Arteriovenous_malformation   (342 words)

  
 Center for Endovascular Surgery: Arteriovenous Malformation of the Brain
Arteriovenous malformation (AVM) of the brain is also a "short circuit" between the arteries (which carry blood from the heart to the tissues) and veins (which carry blood from the tissues back to the heart).
Arteriovenous malformation of the brain presents later in childhood or, more frequently, in adults in the second to third decade of life.
Embolization for arteriovenous malformation may be done as the sole form of treatment or in preparation for microsurgical resection or radiation therapy.
neuro.wehealny.org /endo/cond_arteriovenous.asp   (257 words)

  
 Cerebral arteriovenous malformation - Wikipedia, the free encyclopedia
A cerebral arteriovenous malformation (AVM) is a congenital disorder of blood vessels within the brain, characterized by tangle(s) of veins and arteries.
While an arteriovenous malformation can occur elsewhere in the body, this article discusses malformations found in the brain.
The most frequently observed problems related to the mechanical and blood loss (ischemic) effects of an AVM are headache and seizure.
en.wikipedia.org /wiki/Cerebral_arteriovenous_malformation   (742 words)

  
 Vascular Center : Massachusetts General Hospital
Arteriovenous malformations (AVM) are tangles of abnormal blood vessels.
Arteriovenous malformations are most likely not hereditary (inherited from your parents) and, if you have an arteriovenous malformation, you will most likely not pass it on to your children.
Arteriovenous malformations account for 30-50 percent of hemorrhagic strokes (sudden bleeding in the brain) in children.
www.mgh.harvard.edu /vascularcenter/page.asp?id=avm   (1575 words)

  
 Arteriovenous Malformation Information Page: National Institute of Neurological Disorders and Stroke (NINDS)
Arteriovenous malformation fact sheet compiled by the National Institute of Neurological Disorders and Stroke (NINDS).
The malformations tend to be discovered only incidentally, usually either at autopsy or during treatment for an unrelated disorder.
Información del malformaciones_arteriovenosas/Spanish-language fact sheet on arteriovenous malformations compiled by the National Institute of Neurological Disorders and Stroke (NINDS).
www.ninds.nih.gov /disorders/avms/avms.htm   (617 words)

  
 DaytonDailyNews: Dayton, Ohio, news and information
Cerebral arteriovenous malformation (AVM) is a congenital disorder.
Large malformations may have enough blood flow through them to stress the pumping ability of the heart, especially in young patients.
Cerebral arteriovenous malformations occur in approximately 3 out of 10,000 people.AVMs are slightly more common in males.Although the lesion is present at the time of birth, symptoms may occur at any time.
www.daytondailynews.com /travel/healthfd/shared/health/adam/ency/article/000779.html   (433 words)

  
 Arteriovenous malformation - cerebral
A cerebral arteriovenous malformation is a congenital disorder (present at birth) of the brain's blood vessels.
Intracerebral (in the brain) or subarachnoid (around the brain) hemorrhages are common with cerebral arteriovenous malformation.
A bleeding arteriovenous malformation is a medical emergency and requires immediate hospitalization.
www.pennhealth.com /ency/article/000779.htm   (933 words)

  
 Learning About Health & Illness
Arteriovenous malformations (AVM) are tangles of abnormal blood vessels.
Arteriovenous malformations are most likely not hereditary (inherited from your parents) and, if you have an arteriovenous malformation, you will most likely not pass it on to your children.
Arteriovenous malformations account for 30-50 percent of hemorrhagic strokes (sudden bleeding in the brain) in children.
healthgate.partners.org /browsing/LearningCenter.asp?fileName=96476.xml&title=   (1559 words)

  
 Cerebral arteriovenous malformation (AVM): What are the signs and symptoms? - MayoClinic.com
Cerebral arteriovenous malformation (AVM) often causes no signs or symptoms until the AVM ruptures, resulting in bleeding in the brain.
A cerebral arteriovenous malformation is an abnormal connection between arteries and veins in your brain that's present at birth (congenital).
Arteriovenous malformations, which appear as tangles of normal or dilated blood vessels, can occur in any part of your brain.
www.mayoclinic.com /health/arteriovenous-malformation/AN00460   (256 words)

  
 Endovascular Therapy for Arteriovenous Malformation - CNI Review Medical Journal - Online Library - Colorado ...
Vascular malformations are lesions that present at birth and grow commensurately with the child.
In arteriovenous fistula, that are congenital and not traumatic, the cure rate at the same mean follow up, is 100%.
Arteriovenous malformations of the kidneys: Ablation with alcohol.
www.thecni.org /reviews/12-1-p18-yakes.htm   (1886 words)

  
 Arteriovenous Malformation
Arteriovenous malformation (AVM) is a congenital defect that acts upon the linkage between the arteries and veins.
The malformation may be small and localized or may involve a large area (e.g., half the spinal cord).
The cause of arteriovenous malformation is not known.
hw.healthdialog.com /kbase/nord/nord221.htm   (1536 words)

  
 ARTERIOVENOUS MALFORMATIONS (AVM)
Arteriovenous malformations are masses of abnormal blood vessels which grow in the brain.
The interventional angiographer is capable of filling the malformation with agents which help decrease the blood supply to the malformation (coils, glues, plastic spheres, balloons, etc).
Another example might be the case of the 52-year old businessman with a very large and complex AVM located deep in the brain, involving the vessels that drain to the brainstem and/or speech areas of the brain.
www.brain-surgery.com /bsicavm.html   (684 words)

  
 eMedicine - Renal Arteriovenous Malformation : Article by Mark R Wakefield, MD, FACS
Idiopathic arteriovenous fistulas are thought to arise from the spontaneous erosion or rupture of a renal artery into a nearby renal vein.
Small malformations located in the peripheral aspect of the kidney may be treated by ligation of feeding vessels.
Yoon JW, Koo JR, Baik GH, et al: Erosion of embolization coils and guidewires from the kidney to the colon: delayed complication from coil and guidewire occlusion of renal arteriovenous malformation.
www.emedicine.com /med/topic2861.htm   (5338 words)

  
 MedPix™ -2 Arteriovenous Malformation Patient: 3649
If the malformation is isolated, they appear to be composed of dilated medullary veins that form a large channel draining into cortical veins or subependymal veins.
Arteriovenous malformations consist of feeding arteries that are dilated with a cluster of entangled vascular loops.
Arteriovenous malformations are usually congenital developmental anomalies, but are frequently asymptomatic until 30 to 40 years of age.
rad.usuhs.mil /medpix/teaching_case.html?mode=quiz&pt_id=3649&quiz=no   (1056 words)

  
 Arteriovenous Malformations and Embolization Treatment Information about Microspheres
Arteriovenous malformations are groups of abnormal vessels which may occur within the brain and other parts of the body.
These malformations are usually present at birth but may grow over time and typically produce symptoms due to bleeding or pressure on normal adjacent structures (seizures, pain, deformity of the face including the tongue, lips and eyelids).
In some cases vascular malformations are embolized prior to radiation therapy in order to reduce the malformation to a treatable size.
www.biospheremed.com /INDICATIONS/ARTERIOVENOUS.CFM   (620 words)

  
 NWH Gamma Knife Center | CONDITIONS TREATED | Arteriovenous Malformation
An arteriovenous malformation (AVM) is an entanglement of blood vessels that forms as a result of the failure of embryonic vessels to separate into arteries and veins.
These malformations are exceptionally thin and without the normal characteristics of arteries or veins.
Although some arteriovenous malformations do not cause symptoms, many become symptomatic in patients between the ages of 10 and 30 years old.
www.nwhgammaknife.com /gamma/cond_avm.asp   (415 words)

  
 AVM arteriovenous malformation | Mayfield Clinic   (Site not responding. Last check: 2007-10-20)
An arteriovenous malformation (AVM) is an abnormal tangle of blood vessels in the brain or spine.
Arteriovenous malformation – abnormal tangle of blood vessels where arteries shunt directly into veins with no intervening capillary bed; high pressure.
Venous malformation – abnormal cluster of enlarged veins resembling the spokes of a wheel with no feeding arteries; low pressure, rarely bleed and usually not treated.
www.mayfieldclinic.com /PE-AVM.htm   (1932 words)

  
 Arteriovenous Malformation Overview - New York Presbyterian Hospital
A vascular malformation is an abnormal collection or tangle of blood vessels.
The malformations restrict or alter blood flow and are associated with the degeneration of neurons.
In arteriovenous malformations (AVMs), blood flows directly from arteries into veins without passing through interconnecting capillaries.
www.nyp.org /health/arteriovenous-malformation.html   (613 words)

  
 Spontaneous involution of retinal and intracranial arteriovenous malformation in Bonnet-Dechaume-Blanc syndrome -- ...
Spontaneous angiographic disappearance of a cerebral arteriovenous malformation.
Arteriovenous aneurysm of the retina with spontaneous regression.
Arteriovenous malformation of the mid-brain and retina, facial naevi, and mental changes.
bjo.bmjjournals.com /cgi/content/full/86/3/360   (653 words)

  
 Spinal Arteriovenous Malformations treatment at Mayo Clinic
(Synonyms: Spinal avm, spinal arteriovenous fistulas, spinal AVF, spinal intradural AVM)
A spinal arteriovenous malformation (AVM) is an abnormal tangle of blood vessels on, in or near the spinal cord.
The arteriovenous malformation causes spinal tissues to be starved of normal amounts of oxygen, and the cells that make up these tissues begin to deteriorate or die.
www.mayoclinic.org /spinal-arteriovenous-malformations   (330 words)

  
 Arteriovenous Malformation Glossary of Terms with Definitions on MedicineNet.com
AVM: An AVM (arteriovenous malformation) is a congenital disorder (one present at birth) of blood vessels in the brain, brainstem, or spinal cord that is characterized by a complex, tangled web of abnormal arteries and veins connected by one or more fistulas (abnormal communications).
A genetic disease characterized by the presence of arteriovenous malformations (AVMs) which involve direct connections between arteries and veins without the usual intervening capillaries.
Malformation: A structural defect in the body due to abnormal embryonic or fetal development.
www.medicinenet.com /arteriovenous_malformation/glossary.htm   (5581 words)

  
 Arteriovenous Malformations -- eCureMe.com
In arteriovenous malformation (AVM), blood is shuttled directly from the artery to the vein, where the blood flow is high and the venous pressure is elevated.
An arteriovenous malformation (AVM) is a cluster of abnormal blood vessels composed of direct arterial to venous connections without intervening capillary beds.
Arteriovenous malformation of the brain occurs in 3 out of 10,000 people.
www.ecureme.com /emyhealth/data/Arteriovenous_Malformations.asp   (344 words)

  
 Korean Journal of Radiology
Arteriovenous malformation (AVM) of the brain is one of the important pathologic conditions which cause intracerebral or subarachnoid hemorrhage, epilepsy, or chronic cerebral ischemia.
Spontaneous regression of intracranial arteriovenous malformations: Report of three cases.
Krapf H, Siekmann R, Freudenstein D, Kuker W, Skalej M. Spontaneous occlusion of a cerebral arteriovenous malformation: Angiographic and MR imaging follow-up and review of the literature.
www.kjronline.org /abstract/view_articletext.asp?year=2002&page=74   (1311 words)

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