[Transluminal angioplasty of renal artery stenosis for the treatment of renal hypertension (author's transl)].

Three patients with hypertension due to renal artery stenoses were treated by percutaneous transluminal angioplasty with the coaxial-balloon-catheter system as it is used for the dilatation of coronary arteries. The pressure gradients before and after dilatation are recorded. Pressure of the three patients came directly after treatment down significantly. Reduction of antihypertensive drug therapy was possible in two patients, one patient is without therapy 4 weeks after the procedure.