Subject(s)
Adrenal Gland Neoplasms/diagnostic imaging , Adrenocortical Hyperfunction/diagnosis , Hypertension/diagnosis , Pheochromocytoma/diagnostic imaging , Adrenal Glands/blood supply , Angiography/methods , False Negative Reactions , Humans , Hypertension/etiology , Radionuclide Imaging , Tomography, X-Ray ComputedSubject(s)
Brain Neoplasms/diagnostic imaging , Tomography, X-Ray Computed , Astrocytoma/diagnostic imaging , Cerebral Ventricle Neoplasms/diagnostic imaging , Cerebral Ventriculography/methods , Humans , Meningeal Neoplasms/diagnostic imaging , Meningioma/diagnostic imaging , Neoplasms, Germ Cell and Embryonal/diagnostic imaging , Neuroma, Acoustic/diagnostic imagingSubject(s)
Adrenal Glands/blood supply , Phlebography/methods , Adenoma/diagnostic imaging , Adrenal Gland Neoplasms/diagnostic imaging , Adult , Cushing Syndrome/diagnostic imaging , Evaluation Studies as Topic , False Negative Reactions , Female , Humans , Hyperaldosteronism/diagnostic imaging , Male , Middle Aged , Pheochromocytoma/diagnostic imagingSubject(s)
Hypertension, Renal/surgery , Hypertension, Renovascular/surgery , Renin/blood , Adolescent , Adult , Female , Humans , Hypertension, Renovascular/blood , Kidney/blood supply , Male , Middle Aged , PrognosisABSTRACT
Renal venous and peripheral plasma renin activities were determined in 29 operated patients with renovascular hypertension and in 10 patients with essential hypertension. The majority of patients with renovascular hypertension exhibited elevated peripheral plasma renin activity, but the most striking increase of renin activity was demonstrated in the venous effluent of the involved kidney. Using data obtained in patients with essential hypertension, the ratio of renal vein renin activity not exceeding 1.4 was assumed normal. In patients with renovascular hypertension, the values above 1.4 were accepted as lateralizing ratios. In 78.6 % of patients with unilateral renal artery stenosis and a lateralizing renal vein renin ratio, normotension or improvement of blood pressure control were obtained post-operatively. The discussion emphasis the importances of renal vein renin estimations with the calculation of renal vein ratio for determining the functional significance of renal artery stenosis and for predicting the surgical outcome