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Stroke Center at Johnson City Medical Center

When every minute counts, you need the best and you need it fast.

That’s why Johnson City Medical Center (JCMC) is offering the latest in advanced stroke treatment. Our highly skilled surgeons are standing by to provide the very best stroke care the moment you need it. Dr. Samuel “Chip” Massey and Dr. Brian Mason are the only fellowship trained neuroendovascular surgeons in our region who perform minimally invasive stroke procedures. This means you get the very best treatment with a shorter recovery time. 

The Certified Stroke Center at Johnson City Medical Center provides world-class comprehensive stroke care for those at risk or suffering from complex vascular disorders of the brain and spine. We use the latest technology to accurately diagnose and treat patients. Our surgeons are experts in the fields of cerebrovascular and endovascular surgery. 

Johnson City Medical Center follows treatment protocols based on the guidelines from several national organizations, including:

  • American Stroke Association
  • The Brain Attack Coalition
  • National Institute of Neurological Disorders and Stroke
  • National Stroke Association

Our “Life Saved” videos feature grateful stroke survivors and their stories about their experience and the treatment they received here at the Stroke Center at JCMC.

At Johnson City Medical Center's Stroke Center we provide a wide range of treatments for:

  • Atherosclerotic Disease in the head and neck
  • Brain aneurysms
  • Traumatic vascular dissections
  • Arteriovenous malformations

Visit our HEALTH LIBRARY for comprehensive stroke information, including signs and symptoms, types of stroke, effects, medication, treatment and prevention for stroke.

Meet our doctors

Brian Mason, M.D.

Areas of expertise:

  • Diagnostic cerebral angiograms
  • Endovascular neurosurgical treatment of brain aneurysms with coils, stents and pipeline embolization devices
  • Endovascular neurosurgical treatment of atherosclerotic disease of the vessels in the neck (carotid vessels) and in the brain with stents and balloon angioplasty
  • Endovascular neurological treatment of brain and spine arteriovenous malformations with liquid embolic agents
  • Endovascular treatment of acute stroke
  • Minimally invasive treatment of vertebral body fractures with kyphoplasty

Dr. Mason is board certified in Radiology as a sub-specialist in vascular and interventional radiology and earned his medical degree through an accelerated six-year combined bachelors/medical degree program at the University of Missouri School of Medicine. He completed his diagnostic radiology residency training at Bridgeport/Yale-New Haven Hospital where he served as Chief Resident. Dr. Mason advanced his medical preparation by training further to sub-specialize in image guided micro-invasive techniques at the University of Oklahoma. Dr. Mason was in private practice as an interventional radiologist in a large tertiary referral center for nine years in Orlando, Florida, where he also acted as the section chair. He completed his training with a Neuroendovascular Interventional Neurosurgery fellowship at the University of Wisconsin Medical Health Center in Madison, Wisconsin. Dr. Mason has been widely published in multiple peer-reviewed scientific journals. 



Samuel "Chip" Massey, M.D.

Dr. Massey is board certified in Radiology with a fellowship in NeuroRadiology and Endovascular Neurosurgery. He earned his medical degree from the University of Mississippi School of Medicine and completed his residency at the University of Arkansas for Medical Sciences, where he served as the Chief Resident. He is a senior member of the Society of NeuroInterventional Surgery. He is also a member of the Radiological Society of North America, the American College of Radiology, the American Roentgen Ray Society and the American Society of Neuroradiology.

What is a stroke?

A stroke, which can also be referred to as a brain attack, occurs when blood flow to the brain is disrupted. Disruption in blood flow is caused when either a blood clot blocks one of the vital blood vessels in the brain (ischemic stroke), or when a blood vessel in the brain bursts, spilling blood into surrounding tissues (hemorrhagic stroke). The brain needs a constant supply of oxygen and nutrients in order to function. Even if there is a brief interruption in blood supply it can still cause problems. Brain cells begin to die after just a few minutes without blood or oxygen due to both the physical and chemical changes that occur in the brain with stroke, damage can continue to occur for several days. Impairment of brain function occurs with the loss of brain cells. The impairment of brain function may include impaired ability with movement, speech, thinking and memory, bowel and bladder function, eating, emotional control,and other vital body functions. Recovery from stroke and the specific impaired ability depends on the size and location of the stroke. A small stroke may result in problems such as weakness in an arm or leg, whereas larger strokes may cause paralysis, loss of speech, or even death. 

What can I expect if I am having surgery?

You will be given specific instructions on the time to arrive at the hospital and where to check in. Once checked in you will be directed to a Pre-Operation area where you will change into a hospital gown, and you may get white stockings to wear to help prevent blood clots in your legs after surgery. Our endovascular nurses will talk with you about the type of anesthesia and pain medication you will be receiving, and an IV line will be placed in your arm for fluids and medicine throughout your surgery. 

As with all surgeries, you will be asked to sign a standard consent form prior to surgery and your surgeon will discuss the specifics of any risks associated with your individual situation. If you have any questions prior to surgery, please do not hesitate to ask your doctor or any other member of your health care team.