Renal Artery Reconstruction in Renovascular Hypertension

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Abstract
Over a period of 8 years, 52 patients (31 females and 21 males) between 12 and 59 years of age (mean age 40 years) underwent renal artery reconstruction for correction of renovascular hypertension. Five patients were operated on bilaterally. A thoracoretroperitoneal approach was chosen at 48 of 57 renal artery reconstructions. The most used types of arterial reconstruction were thrombendarterectomy and vein patch, resection of the stenosis and end-to-end anastomosis, vein patch only or aortorenal vein bypass. No early or late nephrectomies were performed. These was no operative mortality, but 3 late deaths occurred. Twenty-two patients were normotensive postoperatively, 20 were improved and there were 10 failures. The follow-up time as 1--8 years. The blood pressures were measured after withdrawal of antihypertensive drugs for at least 10 days. The best predictable criterion for normotension was a positive renin test with a renin ratio of 1.5 or more. The normotensive patients were in the younger age group with a shorter duration of known hypertension and had mainly fibromuscular hyperplasia.

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