[Arterial hypertension in senile pyelonephritis: the renal hemodynamics].

Eighteen patients aged 60 to 80 years suffering from chronic pyelonephritis (CPN) and nephrogenous arterial hypertension (AH) were examined for intrarenal hemodynamics: effective renal blood flow (ERBF), glomerular filtration rate (GFR), filtration fraction (FF), renal vascular resistance (R). Renal hemodynamics in patients with senile pyelonephritis and AH was found to be characterized by a decrease of ERBF, GFR, FF, an increase of R (p less than 0.01), with the alterations being related to the AH intensity, mass of the functioning renal parenchyma (for GFR) and partly (for R) to the pyelonephritis and AH standing. R which is dependent on the duration and course (number of exacerbations) of CPN is one of the factors that determine the development and gravity of AH in senile pyelonephritis.