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Angioplasty - Carotid Artery Angioplasty
Carotid Artery Angioplasty with Stenting (CAS)
Carotid angioplasty with stenting is a minimally invasive procedure in which a very small hollow tube, or catheter, is advanced from a blood vessel in the groin to the carotid arteries. Once the catheter is in place, a balloon may be inflated to open the artery and a stent is placed.
A stent is a cylinder-like tube made of thin metal-mesh framework used to hold the artery open. Because there is a risk of stroke from bits of plaque breaking off during the procedure, an apparatus, called an embolic protection device, may be used.
An embolic protection device is a filter (like a small basket) that is attached on a guidewire to catch any debris that may break off during the procedure. While this procedure is performed widely, the long-term effects are still being studied.