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[Prevalence of severe arterial hypertension in patients with renal grafts and surgical indications. Experience of the La Pitié Hospital].

Five hundred eighty five renal transplantations were performed in our group from January 1982 to December 1992. The observed incidence of hypertension in this group is 45%. Invasive treatment was indicated in 20 hypertensive patients (3.4%): 4 patients had bilateral-nephrectomy and 16 patients were treated for renal artery stenosis. This last group consisted of 12 men and 4 women (mean age of 36 years), who received a cadaveric transplant. 7 patients were hypertensive prior to transplantation. Only 25% of the patients received cyclosporine. Initial nephropathy was a glomerular in 9 cases. Before surgical treatment, an average of 3.2 anti-hypertensive drugs were necessary to control arterial pressure. Percutaneous transluminal angioplasty was indicated in 11 patients, whereas surgical correction of arterial stenosis was realized in 6 cases. Angioplasty was associated with poor results (persistent HTA and renal failure in 7 out of 11 patients). After surgery of renal artery, all patients had normal blood pressure. Renal artery stenosis would require surgical treatment, when possible. If not, percutaneous transluminal angioplasty will be proposed. The most efficient surgical procedure seems to be resection of the structure and termino-terminal anastomosis. When usable, internal iliac artery can be sutured beyond the stenosis.