Percutaneous angioplasty in clinical management of renovascular hypertension: initial and long-term results.

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Abstract
Between Jan. 1980-July 1983, percutaneous transluminal angioplasty was attempted on 137 stenotic renal arteries in 100 patients. [In all cases, a diagnosis of renal artery stenosis was documented by a preliminary abdominal aortogram.] At termination of follow-up studies (3-39 mo., mean of 16 mo.), 70% of those treated for hypertension had benefited from the procedure. Stenosis secondary to fibromuscular dysplasia responded better than stenosis from arteriosclerosis (85% and 65% of the patients, respectively). Benefit was minimal for those with stenosis of the renal artery ostium or renal insufficiency. Determining levels of renal vein renin before angioplasty is helpful in selecting patients; following angioplasty, this has considerable significance in predicting the success of the procedure.