Renovascular Hypertension and Azotemia

The article by Ying et al.1 in this issue is appropriately published in 1984 — the 50th anniversary of Goldblatt's historic description of experimental renal hypertension.2 This discovery was shortly followed by several descriptions of the renal pressor system3 , 4 and by an enthusiastic search for a clinical counterpart of the experimental form. Except for a report on one patient who had an occluded renal artery and who became normotensive after nephrectomy,5 the search was initially fruitless. This was because no techniques were available for visualizing renal arterial lesions, for repairing them if found, or for measuring any component of the . . .