[Separate catheterization test in the assesment of the kidney function in patients with renal artery stenosis].

An investigation has been designed to study the functional state of the kidneys in arterial affection of the major trunk by studying indices for separate catheterization of the ureters in 24 patients presenting with the functionally significant stenosis and 21 patient with essential hypertension. It has been established that significance of classical criteria of assessment of separate catheterization tests comes up to 45.2%, semi-classical 70.2%. Strong lateralization of the indices in three collections of urine secures the diagnostic usefulness of the study in 95.2% of cases.