Determination and clinical significance of renal filtration fraction in nephrogenic hypertension

The effective renal plasma flow (ERPF), the rate of glomerular filtration and filtration fraction were investigated in 48 patients with nephrogenic hypertension (NH) using the method of dynamic renoscintigraphy with a double label (131I-hippuran and 99mTc-DTPA). The proposed method of noninvasive combined assessment of renal function was shown to be simple to perform and permitted the determination of a degree of involvement of the glomerular and tubular apparatus of the kidneys in NH. The comparison of renoscintigraphic and histomorphological results made it possible to determine renoscintigraphic criteria of glomerulo- and nephrosclerosis