Survival after Stenting of Severe Atherosclerotic Ostial Renal Artery Stenoses

Purpose: To examine long-term survival after angioplasty and stenting of atherosclerotic renal artery stenosis (RAS). Methods: Over a 5-year period, 241 consecutive patients (153 men; mean age 67±9 years, range 44–84) were treated with angioplasty and stent implantation for 355 ostial renal stenoses >70%. The procedures were performed in standard fashion using a variety of stents. For survival analysis, the patients were divided into 3 groups based on baseline creatinine levels: group 1: 115 (48%) patients with normal renal function (creatinine 2.5 mg/dL). Results: All patients were treated successfully without any procedure-related mortality. The 30-day mortality was 0.4% (1/241). Twenty-two patients died during a follow-up of 27±15 months (range 1–60) (overall survival 91%). The causes of death were cardiac (congestive heart failure or myocardial infarction, 73%), stroke (13.5%), and malignant disease (13.5%). The survival rate was significantly lower (29.6%) in patients with a baseline serum creatinine >2.5 mg/dL (p