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  • Title: Operative management of renovascular hypertension.
    Author: McCombs PR, Berkowitz HD, Roberts B.
    Journal: Ann Surg; 1975 Dec; 182(6):762-6. PubMed ID: 1190880.
    Abstract:
    From 1966 to 1975, 38 patients underwent 42 procedures for renovascular hypertension; 35 operations were aortorenal bypasses and 7 were nephrectomies. Forty-five per cent of the patients were cured, 43% were improved and 12% were unimproved. There were no operative deaths and only three late deaths. Two grafts occluded and 2 became stenotic, giving a graft complication rate of 12%. Curability was best correlated with a short history of hypertension and a pathologic diagnosis of fibromuscular hyperplasia, but not with patient age. Most patients selected for surgery had elevated renal venous renin ratios, and of these 95% were cured or improved. Of those with normal renin ratios, 85% were still cured or improved. Postoperative aortography and peripheral renin measurements offered valuable information in predicting the ultimate response to surgery. Preservation of renal function was a principal indication for surgery in 11 patients. In 8, azotemia was documented preoperatively. Hypertension was cured or improved in every case and 5 patients demonstrated a 10-50% reduction in BUN and creatinine following revascularization.
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