title: Relevant diagnostic procedures in renovascular hypertension.
abstract: The validity of invasive preoperative diagnostic procedures in patients with unilateral renovascular hypertension was assessed. A significant lowering of blood pressure following reconstructive surgery can be predicted if following stimulation with Dihydralazine the renal-venous renin ratio of the involved to the noninvolved kidney is at least 2.0. Furthermore, it is of importance to determine the renal perfusion rate in the contralateral non-stenotic kidney which should be within normal limits. If these two criteria are met then in the majority of cases surgical intervention in unilateral hypertension is meaningful.
mesh_terms: D000328:Adult; D001794:Blood Pressure; D004078:Dihydralazine / Q000494:pharmacology; D005260:Female; D006801:Humans; D006977:Hypertension, Renal / Q000097:blood / Q000175:diagnosis*; D007668:Kidney / Q000098:blood supply; D008297:Male; D008875:Middle Aged; D012039:Regional Blood Flow; D012078:Renal Artery Obstruction / Q000097:blood / Q000601:surgery; D012082:Renal Veins; D012083:Renin / Q000097:blood; D013268:Stimulation, Chemical
chemical_list: D012083:Renin; D004078:Dihydralazine