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Utilizing radio frequency energy and the heated catheter, the physician cauterizes â or burns â the tissue surrounding your saphenous vein to close it. Balloon angioplasty/stents for renal vascular hypertension is a procedure to open narrowed arteries that carry blood to your kidneys. It involves inserting a long, thin tube called a catheter through into the narrowed part of the artery.
To open a narrowed artery, a doctor may do a procedure. called a percutaneous coronary intervention (PCI) or angioplasty. In it, a balloon-tipped tube (catheter) is inserted into an artery and moved to the point of. blockage. Then the balloon is inflated. This compresses. the plaque and opens the narrowed spot. When the. opening in the vessel has been widened, the balloon is.