[Microhemodynamics of the renal cortex in the experimental hydronephrosis].

The authors have studied the influence of unilateral urethral occlusion in the development of microhemomicrocirculatory disorders in renal cortex both on side of the damage and on the opposite side. It was shown, that the degree of hemomicrocirculatory disorders on occlusion side depends on duration of ureteral obstruction that defines the development of tissue hypoxia and breaks down the trophism of the kidney parenchyma. The dynamic functional hemomicrocirculatory disorders riverbeds appear on early (1, 3, 5 day), but inconvertible changes of the kidney parenchyma develops later (14, 30 day) periods of the experiment. Disorders of the function of one kidney leads to adaptive reaction of the hemomicrocirculatory system of the opposite kidney and It reveals itself in the dilatation of microvessels of this system and increase of the linear blood velocity in it, providing its hyperfunction.