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New techniques for percutaneous renal revascularization: atherectomy and stenting.

All current techniques for PTRA carry the risk of re-stenosis due to intimal hyperplasia and associated complications. More data are now available to better determine the best candidates for PTRA or surgical revascularization. Great progress has been made with the introduction of renal artery stenting. I believe that this technique, when adequately sized and positioned, will give the best long-term results. Further randomized trials are needed to prove that this technique is superior to PTRA.