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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.
Angioplasty is a procedure to open blocked or narrowed coronary (heart) arteries. It can improve blood flow, relieve chest pain, and possibly prevent a heart attack. Sometimes a small mesh tube, called a stent, is placed in the artery to keep it open after angioplasty.