Follow Up Study of 70 Patients With Renal Artery Stenosis Treated by Percutaneous Transluminal Dilatation

Abstract

Between April 1978 and April 1981, 70 patients with hypertension and renal artery stenosis were treated by percutaneous transluminal arterial dilatation. Selection of the patients was based solely on arteriographic criteria. Arteriography after dilatation showed considerable widening of the stenosed area in all patients. In 65 patients the effect of treatment on the blood pressure was assessed during follow up periods of one to four years. In 14 of these patients the hypertension was cured, in 29 it was improved, and in 22 there was no change. Patients with fibromuscular lesions benefited distinctly more than did those with atheromatous stenosis, only one of the 21 patients with fibromuscular lesions showing no change as compared with 21 of the 44 patients with atheromatous lesions. The only serious complication encountered was microcholesterol emboli, which developed in two patients with severe atheromatous lesions of the aorta. In the atheromatous group age and overall renal function had no influence on the blood pressure response. In the subgroup of patients with a unilateral lesion the renal vein renin ratios and asymmetrical

Renal Insufficiency: Usefulness of Gadodiamide-enhanced Renal Angiography to Supplement CO2-enhanced Renal Angiography for Diagnosis and Percutaneous Treatment

“…The only 30-day mortality that we encountered was in the patient reported in this article (30-day mortality rate, Ͻ1%). This mortality rate is in agreement with the 1%-2% mortality rate associated with renal artery PTA reported in the literature (2,(4)(5)(6)70). In the 19 patients with a creatinine level of less than 4.0 mg/dL (354 µmol/ L) (groups 1 and 2), none had a marked (Ͼ0.5 mg/dL [44 µmol/L]) increase in serum creatinine level 48 hours after their procedure.…”

Clinical predictors of improved long-term blood pressure control after successful stenting of hypertensive patients with obstructive renal artery atherosclerosis

“…Thus, factors other than a renal stenosis may determine the etiology of renovascular hypertension in man. This may account for the clinical observation by Geyskes et al [14] that only 52% of hypertensive patients with renal lesions experienced a beneficial blood pressure response after successful angioplasty. In a similar cohort of 271 patients, other investigators noted that after successful stent implantation, as determined by blood pressure values and antihypertensive medication requirements, only 55% were cured or improved [15].…”

Treatment of severe renal artery stenosis by percutaneous transluminal renal angioplasty and stent implantation

“…Renal function was not improved and the follow-up period of 6-12 months was short [5][6][7]. Slightly better results were obtained in renovascular hypertension due to FMD, in both prospective and retrospective studies [8][9][10][11][12][13][14][15]. As a further technical development, implantation of stents in RAS was introduced in 1991 [16][17][18].…”