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  • Title: Transluminal angioplasty in patients with bilateral renal artery stenosis or renal artery stenosis in a solitary functioning kidney.
    Author: Kim PK, Spriggs DW, Rutecki GW, Reaven RE, Blend D, Whittier FC.
    Journal: AJR Am J Roentgenol; 1989 Dec; 153(6):1305-8. PubMed ID: 2530858.
    Abstract:
    Renal angioplasty in patients with bilateral renal artery stenosis or with renal artery stenosis in a solitary functioning kidney has been thought to be relatively contraindicated. We report the results of renal artery angioplasty in 18 patients, 10 with severe bilateral renal artery stenosis and eight with severe renal artery stenosis in a solitary kidney. Twenty-five (89%) of 28 angioplasties were successful, with a mean improvement of the degree of stenosis from 85% to 18% after angioplasty and a restoration of renal blood flow. A significant drop in mean blood pressure at admission of 187/101 mm Hg to 154/87 mm Hg at discharge, 152/86 mm Hg at 3-month, and 146/82 mm Hg at 1-year follow-up was seen. Because of the decrease in blood pressure, 11 of the patients decreased or stopped taking diuretics and 15 decreased or stopped taking antihypertensive medications. Although no significant change in renal function was found by measuring mean serum creatinine levels over time, no patient had an elevated serum creatinine level at follow-up, indicating preservation of renal function. One major complication, cholesterol embolization to the bowel, was seen. Our results suggest that angioplasty is an acceptable treatment of hypertension in patients with bilateral renal artery stenosis or renal artery stenosis in a single kidney.
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