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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.
There are several approaches to reopening an arterial obstruction: 1  Thrombolytic therapy involves the use of clot-busting drugs. 2  Angioplasty is the medical term for the surgical repair/reopening of an artery. 3  Stenting involves the insertion a mesh tube to reopen the artery.