Percutaneous transluminal renal angioplasty: Immediate and long-term results in 113 patients

The aim of the study was to evaluate the anatomic results of percutaneous t ransluminal renal angioplasty in a population of 113 hypertensive patients (66 men, mean age 63 years) who had a significant renal artery stenosis (at heromatous in 105 patients and fibrodysplastic in the eight others). Conven tional angioplasty was performed in 89 arteries. and stent implantation in 46 cases. Stenting was associated with a better immediate result than simpl e angioplasty for atheromatous stenoses (rate of residual stenosis <30%=93. 5% and 71.2% respectively p<0.003). Technical success for angioplasty of at heromatous stenoses was achieved in 73.8% of procedures involving nan ostia l lesions and 51.6% for ostial stenoses (p=0.05). Restenosis was detected 6.3+/-0.3 months later (by echodoppler and/or helic al computed tomography angiography) in 9.1% of cases after stent implantati on and in 47% after simple angioplasty (p=0.00017), The presence of a resid ual stenosis <30% immediately after revascularization was associated with a significantly (26.4% versus 50%, p=0.044) lower rate of restenosis. In conclusion, this study confirms the utility of percutaneous transluminal renal angioplasty for treatment of renovascular hypertension, particularly with the utilisation of stents for atheromatous and ostial stenoses.