Morphometric Parameters of Venous Vessels in Human Kidneys during Aging according to Computed Tomography Data

The purpose of the study was to review the morphometric parameters of the venous vessels in human kidneys in mature, elderly, and senile ages. To study the variant anatomy and determine the morphometric characteristics of the extra-organ part of the venous vessels of the kidneys, computed tomograms in the coronal projection of 111 men and women were used. To study age-related characteristics, the most common variant of the formation of renal veins (from the superior and inferior polar vessels) was chosen, followed by the study of the frontal diameters of the renal veins and the frontal diameters of the polar veins. It was found that the mean diameters of the left and right renal veins were more prevalent in males than in females. Age-related changes in the morphometric parameters of the renal venous vessels consist in an increase in these values in the first (20-34 years) and the second (34-59 years) mature periods (at p <= 0.05). However, in the elderly and senile periods of ontogenesis, statistically, significant changes are generally not observed. The renal vein and the venous vessels forming it in the mature, elderly, and senile periods of ontogenesis are characterized by an asymmetry of diameters, angles of fusion of the polar vessels, and their lengths (at p <= 0.05). Sex-based differences in the morphometric parameters of the renal veins and the venous vessels that form them consist in an insignificant prevalence of these parameters in males than in females.