Arteriovenous Malformation Care

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Meet Our Specialists

The endovascular neurosurgeons at Norton Neuroscience Institute provide comprehensive arteriovenous malformation (AVM) treatment to patients from Louisville and Southern Indiana. Our endovascular neurosurgeons are fellowship trained in advanced endovascular techniques. They can embolize, or block, an AVM to make surgery safer.

What is a Brain AVM?

A brain arteriovenous malformation (AVM) is an abnormal connection between the arteries and veins in the brain. Although AVMs usually form before birth, symptoms may occur at any age. Brain AVMs have an approximately 4 percent per year risk of bleeding into the brain. AVM bleeding can cause significant neurological deficits; it is even fatal in about 10 percent of cases. AVMs also can irritate the surrounding brain, which can cause seizures and headaches.

AVM Treatment

Most AVMs can be treated using a two-step treatment, stereotactic radiosurgery or conservative therapy.

Two-step treatment

  • Endovascular embolization: A catheter is inserted through a leg artery into the AVM vessels in the brain. The AVM is then completely filled with surgical glue (Onyx), shutting it down from the inside.
  • Surgical resection: Brain surgery is performed through an opening in the skull to remove the AVM. This is much easier and safer if the AVM has already been embolized with Onyx glue.

Stereotactic radiosurgery

A focused beam of radiation is directed at the AVM, which causes shrinkage and closure over a two- to three-year time period.

Conservative therapy

An AVM is closely monitored in rare cases where the risk of treatment exceeds the risks associated with living with the AVM.

AVM Care Tailored to You

AVM treatment options are tailored to individual patients. Patient preference and age, as well as AVM size and location, are important considerations.

A bleeding AVM is a medical emergency. The goal of treatment is to prevent further complications by controlling bleeding and seizures and, if possible, removing the AVM.

Leading the Region in Neurological Care

National Association of Epilepsy Centers Level 4 seal
  • Breakthrough essential tremor and Parkinson’s disease treatment: We are the first health care system in Kentucky  to offer high-frequency focused ultrasound to treat these conditions without any incisions.
  • Slowing the progression of Alzheimer’s disease: We are the first health care system in Kentucky to offer lecanemab and a leader nationally in the application of this cutting-edge drug.
  • Highest level of stroke care
    • Four Norton Healthcare adult-service hospitals are DNV-certified for stroke care, reflecting the highest standards in rapid treatment and outcomes.
    • Four adult-service hospitals have earned American Heart Association Get With the Guidelines awards for exceptional stroke care, including multiple Gold Plus and Honor Roll designations.
  • More than 75 medical, surgical and research specialists collaborate to provide innovative treatment of brain, spine and nervous system conditions.
  • Norton Neuroscience Institute’s multiple sclerosis (MS) program has met the high standards to achieve Center for Comprehensive MS Care designation by the National Multiple Sclerosis Society.
  • The National Association of Epilepsy Centers has recognized Norton Neuroscience Institute Comprehensive Epilepsy Center as a Level 4 center, providing the highest level of medical and surgical evaluation and treatment for patients with complex epilepsy.
  • Norton Neuroscience Institute Resource Center navigators help educate patients and their families about new diagnoses, available treatments and ways to manage their disease.
  • Medicare, Medicaid and most major commercial insurance accepted; families with income equal to or less than 350% of the federal poverty level may be eligible for financial assistance.
  • Communicate with your provider, refill prescriptions, make appointments and more with the free Norton MyChart account.

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