التفاصيل البيبلوغرافية
| العنوان: |
Repeated intervention for in-stent restenosis of the renal arteries. |
| المؤلفون: |
Bax, Liesbeth, Mali, Willem P.Th.M., van de Ven, Peter J.G., Beek, Frederik J.A., Vos, Jan Albert, Beutler, Jaap J. |
| المصدر: |
Journal of Vascular & Interventional Radiology; Dec2002, Vol. 13 Issue 12, p1219-1224, 6p |
| مصطلحات موضوعية: |
PLASTIC surgery, RENAL artery diseases, ANGIOPLASTY, SURGICAL stents |
| مستخلص: |
Purpose: To assess the long-term technical success of repeated endovascular intervention in stenosed renal artery stents.Materials and Methods: Fifteen patients with stenoses >or=50% in a renal stent placed because of an ostial atherosclerotic renal artery stenosis were included in this study. In the presence of increased blood pressure or decreased renal function, the in-stent restenosis was treated with percutaneous transluminal angioplasty (PTA) in the stent or placement of a second stent if the stenosis was located too distally in the stent. The results of these repeat interventions were evaluated by angiography.Results: The 15 patients had a total of 20 stenosed stents. Eighteen of these in-stent stenoses were treated with PTA and two were treated with placement of a second stent. Angiographic follow-up was available in 16 arteries, showing in-stent restenosis in four (25%; mean follow-up, 11 mo). The cumulative patency rates after repeat endoluminal intervention were 93% (95% CI: 80%-106%) and 76% (95% CI: 52%-101%) after 6 and 12 months, respectively. Renal function remained stable or improved in most patients (80%) after repeated intervention in the stent, and hypertension was classified as improved or cured in 47% of patients after 1 year.Conclusion: Patients with stenosed renal artery stents can be treated successfully with PTA in a majority of cases, with a long-term success rate of 75% and stable renal function 1 year after repeated intervention. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
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