Treatment of Ostial Renal-Artery Stenoses with Vascular Endoprostheses after Unsuccessful Balloon Angioplasty

Abstract
Percutaneous transluminal renal angioplasty is a safe and effective treatment for nonostial stenoses of the renal arteries, but it has proved to be disappointing for ostial stenoses. Therefore, we prospectively studied the use of intravascular stents for the treatment of critical ostial stenoses after unsuccessful balloon angioplasty.