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Cerebral Arteriovenous Malformation (AVM)

Department of Cerebral Arteriovenous Malformation (AVM)

Arteriovenous malformations (AVMs) happen when a group of blood vessels in your body forms incorrectly. In these malformations, arteries and veins are unusually tangled and form direct connections, bypassing normal tissues. This usually happens during development before birth or shortly after.

Most people with AVMs have no initial symptoms or problems. Instead, the problem is discovered when health care providers treat another unrelated health concern. Sometimes the rupture of one of the blood vessels in an AVM will bring the issue to medical attention. 

Types

1.Simple AVM: Involves a single abnormal connection between arteries and veins.

2.Complex or Multifocal AVM: Involves multiple abnormal connections, increasing the complexity of treatment.

Diagnosis

1.Imaging Studies: Diagnostic tools like cerebral angiography, CT angiography, or magnetic resonance angiography (MRA) can reveal the abnormal tangle of blood vessels characteristic of AVM.

2.Neurological Examination: Assessing neurological function to identify any symptoms or deficits associated with the AVM.

Treatment

1.Embolization: A procedure where a substance is introduced to block or reduce blood flow through the abnormal vessels.

2.Stereotactic Radiosurgery: Precise radiation is directed at the AVM to induce closure or shrinkage.

3.Surgical Resection: Involves removing the AVM through open surgery, which may be necessary for certain cases

Cerebral Arteriovenous Malformation (AVM) Overview

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