OSTIAL STENOSIS OF THE RENAL-ARTERY - PER CUTANEOUS REVASCULARIZATION

In a series of 50 patients (22 females, 28 males); 52 ostial renal art ery stenoses were treated by transluminal balloon angioplasty. The mea n age of patients was 66 years (range 36-81); mean arterial pressures were 181 mmHg for the systolic pressure and 87 mmHg for the diastolic pressure. The mean level of serum creatinine was 179 mu mol/l +/- 128. An immediate success was obtained in 86,5 % (residual stenosis of 26 %). There were 7.6 % of immediate failures and 13.5 % of residual sten osis above 50 %. Mortality within 1 month was observed in 2 patients. - Morbidity included one aortic dissection and 5 cholesterol embolisms . After a mean follow-up of 10 months, 78 % of the series were control led : 66,6 % exhibited a residual stenosis below 50 %, 25.9 % had rest enosis and 7.4 % had an occlusion of the renal artery. Since patients with ostial renal artery stenosis constitute a high surgical risk grou p, transluminal balloon angioplasty might be considered as an acceptab le and safe alternative treatment.