[Percutaneous renal angioplasty. Experience of the Radiodiagnostic Service of the Hotel-Dieu of France].

OBJECTIVE

We report on a series of 42 renal artery stenosis treated with percutaneous transluminal angioplasty (PTA).

MATERIALS AND METHODS

From January 1988 to June 1996, these 42 renal artery stenoses were found in 33 patients (17 males and 16 females) who had a balloon dilation (with 3 stent deployment); 9 of these lesions were bilateral and 7 on a single kidney. Initially, 32 patients had a high blood pressure and 6 a progressive renal failure. Twenty-two patients presented an atheromatous pathology, 7 a fibromuscular dysplasia. One patient had a Takayasu arteritis, and 3 others a stenosis of the renal graft artery.

RESULTS

We find a complete initial success in 86% of the patients, a partial success in 14% without any catheterization failure. Global success rate of PTA is 90% at 29 months mean follow-up. A benefit of PTA regarding blood pressure was found in 84.4% of the patients. The renal function became normal in half the patients with renal insufficiency.

CONCLUSION

PTA is an efficient treatment for renal artery stenosis. A satisfactory improvement of blood pressure and renal function is found in a high number of patients.