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The use of brachytherapy to treat renal artery in-stent restenosis.

The percutaneous treatment of renal artery stenosis has become the accepted revascularization strategy by most physicians treating this disorder. Unfortunately, as renal artery angioplasty and stent implantation become increasingly prevalent the Achilles heel of angioplasty, in-stent restenosis, also rises. There are currently no data suggestive of the optimal treatment strategy for renal artery in-stent restenosis. However, given the similarities in the pathophysiology between renal artery and coronary artery in-stent restenosis, brachytherapy is considered a reasonable option. This is the strategy that has been suggested and used by a number of operators. This case report describes two examples of renal artery in-stent restenosis treated with angioplasty and brachytherapy.