The Benefit of Renal Artery Stenting in Patients with Atheromatous Renovascular Disease and Advanced Chronic Kidney Disease

被引:70
作者
Kalra, Philip A. [1 ]
Chrysochou, Constantina [1 ]
Green, Darren [1 ]
Cheung, Ching M. [1 ]
Khavandi, Kaivan [1 ]
Sixt, Sebastian [2 ]
Rastan, Aljoscha [2 ]
Zeller, Thomas [2 ]
机构
[1] Salford Royal Hosp, Dept Renal Med, Salford M6 8HD, Greater Manches, England
[2] Herz Zentrum Bad Krozingen, Dept Vasc Med, Bad Krozingen, Germany
关键词
Atheromatous renovascular disease; chronic kidney disease; estimated glomerular filtration rate; medical therapy; renal artery stenosis; revascularization; BALLOON ANGIOPLASTY; CARDIAC-CATHETERIZATION; HYPERTENSIVE PATIENTS; VASCULAR-DISEASE; RANDOMIZED-TRIAL; MEDICAL THERAPY; RISK-FACTORS; STENOSIS; REVASCULARIZATION; DYSFUNCTION;
D O I
10.1002/ccd.22290
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Background: Around 16% of all patients who present with atheromatous renovascular disease (ARVD) in the United States undergo revascularization. Historically, patients with advanced chronic kidney disease (CKD) have been considered least likely to show improvement in renal functional terms, or survival. We aimed to investigate whether differences in outcomes after revascularization compared to medical management might be observed in ARVD patients if stratified by their CKD classes. Methods: Two prospective cohorts, a UK center with a traditionally conservative approach, and a German center who undertook a proactive revascularization approach, were compared. An improvement in renal function was defined as > 20% renal improvement at one year's follow-up. To improve validity and comparability, revascularized patients in the UK center were also used within analyses, Results: 347 (UK conservative group), 89 (UK revascularized group), and 472 (German center) patients were included in the analysis. When subdivided by CKD stage, patient ages between the two centers were comparable. Improvements in renal function were observed in twice as many patients who underwent revascularization as compared to medical treatment, particularly in the latter CKD stages, 15.2 (German revascularization) vs. 0% in CKD 1-2, 12.2 (UK), and 32-8 (German) revascularization vs. 14.1% in CKD3, and 53.1 and 53.8 vs. 28.3 in patients with CKD 4-5. The improvements in eGFR were 10.2 (16) and 8.1 (12.5) ml/min/year in the German and UK revascularized groups, respectively, vs. -0.05 (6.8) ml/min/year in the medical cohort in CKD 4-6. Improvements in blood pressure control were noted at 1 year overall and within each CKD category. Multivariate analysis revealed that revascularization independently reduced the risk of death by 45% in all patients combined (RR 0.55, P = 0.013). Conclusions: Although this study has significant methodological limitations, it does shows that percutaneous renal revascularization can improve renal function in advanced CKD (stages 4-5), and that this can provide a survival advantage in prospective analysis. (C) 2009 Wiley-Liss, Inc.
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页码:1 / 10
页数:10
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