LOCAL PECULIARITIES OF RENAL HEMODYNAMICS IN NORMAL CONDITION

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Background. For a clear demarcation of norm and pathology the knowledge of normal renal hemodynamic parameters is very important; Aim. Nowadays is raised an interest to study in details various renal segments. Material and Methods. In this work retrospective analysis of data obtained by vital study of 19 left and right kidneys of men 22-35 years of age without renal diseases using Doppler renal investigation of superior segmental arteries in color duplex scan mode and multislice computed tomographic angiography was performed. All kidneys were with a single renal artery. The peak systolic velocity (Vps) and the end diastolic velocity (Ved) of the blood flow, the resistive index (RI), the acceleration time (AT), origination angles and internal diameters (in millimeters) of superior segmental arteries were determined. Statistical analyses of results were performed by computer program package «Biostatistics». Differences were considered significant at p values less than 0.05. Results and Discussion. By comparison of hemodynamic parameters of right and left superior segmental arteries statistically significant differences were not determined (Vps: on right - 37.7±0.7, on left - 40±1.0 cm/s, p>0.1; Ved: on right - 18.3±1.2, on left - 17±0.6 cm/s, p>0.1; RI: on right - 0.6±0.03, on left - 0.63±0.01, p>0.1; AT: on right - 0.08±0.01, on left - 0.09±0 second, p>0.1).Comparison of origination angles, as well as of internal diameters, of right and left superior segmental arteries did not show any statistically significant differences (origination angles - 38.0±2.0 and 46.0±9.0, p>0.1; internal diameters - 4.5±0.15 and 4.5±0.15, p>0.1).