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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.
ADVERTISEMENT. Angioplasty is a procedure to widen or open a blocked or narrowed artery. It restores normal blood flow through diseased arteries. Angioplasty is used on renal (kidney) arteries, carotid (neck) arteries, cerebral (brain) arteries, and coronary (heart) arteries. It treats coronary artery disease, peripheral artery disease, and carotid artery disease.