Carotid Artery Angioplasty & Stenting (CAS)
Carotid artery angioplasty and stenting (CAS) is a minimally invasive interventional procedure that treats narrowed, clogged or blocked carotid arteries to restore blood flow to the brain. The carotid arteries are located on each side of the neck. These are the main arteries supplying blood to the brain. They can be clogged with fatty deposits (plaque) that slow or block blood flow to the brain — a condition known as carotid artery disease — which can lead to a stroke.
When is the procedure recommended?
Carotid angioplasty and stenting may be recommended for treatment of stroke or a stroke-prevention option if:
- The carotid artery has a blockage of 70% or more, especially if the patient has had a stroke or stroke symptoms, and is not in best health to undergo surgery
- Have already had a carotid endarterectomy and are experiencing new narrowing after surgery (restenosis)
- The location of the narrowing (stenosis) is difficult to access with endarterectomy
How is the procedure performed?
During the procedure, our interventional radiologist inserts a catheter with a deflated balloon at the tip into an artery in the groin and threads it up into the carotid artery in the neck. Once the catheter reaches the narrowed area, the balloon is inflated to open it up. A stent may also be inserted to keep the artery open.
What are the benefits of this procedure?
- CAS can help reopen narrowed carotid arteries
- CAS provides an alternative to open surgery for patients with certain high-risk factors, such as severe pulmonary disease or a history of neck radiation
