What is Brain AVM?

Understanding this rare condition is the first step toward effective treatment and recovery

Dr. Nirav J. Patel, MD for Brigham And Women’s Hospital

A Rare Yet Serious Vascular Condition

Understanding Brain AVM

A brain arteriovenous malformation (AVM) is a tangle of abnormal blood vessels connecting arteries and veins in the brain. Unlike healthy blood vessels, AVMs disrupt the normal flow of blood and oxygen, leading to a range of potential complications.

Arteries are responsible for carrying oxygen-rich blood to the brain, while veins carry oxygen-depleted blood back to the heart.
In an AVM, this natural process is bypassed, creating a “short circuit” that can cause dangerous pressure on blood vessels.

Recognizing the Signs of AVM

Symptoms of AVM

Symptoms of brain AVMs can vary widely depending on their size and location. Common symptoms include:

Severe headaches, often described as sudden or pulsating.
Seizures with no prior history.
Neurological symptoms, such as:
- Weakness or numbness in one part of the body.
- Loss of vision or difficulty speaking.
- Dizziness or unsteady movements.
Brain hemorrhage (in severe cases).

If you or a loved one are experiencing these symptoms, seeking immediate medical attention is critical to prevent long-term complications.

Early Detection, Better Outcomes

How is Brain AVM Diagnosed?

Diagnosing a brain arteriovenous malformation (AVM) is the first crucial step toward effective treatment. Thanks to advancements in medical imaging, AVMs can be identified with precision and accuracy.

Common diagnostic methods include:

CT Scan (Computed Tomography):

A non-invasive imaging test that helps detect bleeding in the brain caused by an AVM.

MRI (Magnetic Resonance Imaging):

Provides detailed images of the brain to identify AVMs and assess their size and location.

Cerebral Angiography (Digital Subtraction Angiography):

The gold standard for AVM diagnosis. This specialized test uses contrast dye and X-rays to provide a detailed map of blood flow in the brain, offering crucial information for treatment planning.

Hope and Healing Beyond Diagnosis

Living with AVM

A diagnosis of AVM can be overwhelming, but many patients go on to live full, healthy lives after treatment. Our team is here to guide you through every step, offering personalized care and ongoing support.