DOPLEROGRAPHIC DESCRIPTION OF RENAL BLOOD SUPPLY DISTURBANCE IN PATIENTS WITH CHRONIC KIDNEY DISEASE STAGE I-II AND ARTERIAL HYPERTENSION

The purpose of this work was to investigate renal blood supply disturbance in patients with chronic renal disease stage I-II (pyelonephritis, glomerulonephritis, diabetic nephropathy). Material and methods. The authors carried out 131 complex ultrasonic investigations using ultrasonic duplex color kidney scanning. 47patients with chronic pyelonephritis (ChPN), 48patients with diabetic nephropathy stage IV (DN) and 36patients with chronic glomerulonephritis (ChGN) were involved into investigation. Each group consisted of 2 subgroups – with arterial hypertension (AH) and without AH. 20 healthy persons were examined as well. Results. Scantyintrarenal blood flow which is characterized with a decrease of maximal systolic (Vs), minimal diastolic blood velocity(Vd), as well as a decrease of indices of the averaged, according to time, maximal blood velocity (TAMX) and volumetric blood velocity (Vvol) and an increase of index resistance (IR) have been revealed in patients with chronic renal disease (ChRD) stage I-II with the presence of AH stage II. Indices of the vascular renal blood flow under study correlated with the main factors of ChRD progression – glomerular filtration rate (GFR) and daily proteinuria. Conclusion. Reliable Vs, Vd, TAMX and Vvol decrease and a reliable IR increase may be considered as early noninvasive criteria of ChRD progression with the presence of AH stage II.