[Functional state of upper urinary tract in urgent extracorporeal lithotripsy]

Seven patients have undergone urgent extracorporeal lithotripsy (UEL) for renal colics. 3 patients were cured. Before UEL they had insignificant defects of urodynamics and ureteral contraction. 3 patients with initial dilation of the upper urinary tracts > 2 cm and reflux ureteral motility, residual concrements eliminated spontaneously or after additional UEL procedures or combined treatment. One female with initial pelvic and uretral dilation and disturbed motility of the upper urinary tracts was treated for 6 months. 1-2.5-year follow-up detected neither concrements nor marked dilation of the calyceropelvic system. Patients with renal colics have more pronounced local defects of contraction rhythm and activity, peristaltic direction. Peristaltic disorders in the upper urinary tracts in patients with renal colics are local and may be related to acute occlusion and neuroreflex effects. This explains why UEL produces good results in renal colics, especially in patients with minimal defects of urodynamics. Complicated course after UEL early after the operation occurred in patients with dilated upper urinary tracts, high contraction amplitude registered by high tonicity of the ureteral wall and the presence of retrograde peristaltic waves.