Selective reduction of renal perfusion pressure and blood flow in man: humoral and hemodynamic effects.

We studied the renin and the circulatory responses to unilateral reduction of the renal perfusion pressure (RPP) in seven normotensive subjects and 17 patients with primary hypertension who required diagnostic renal angiography. A balloon-tipped catheter was used for occlusive arteriography; the same catheter was also used to reduce, through appropriate… CONTINUE READING