Nephrolithiasis is often the cause of the development of hydronephrotic transformation in adult patients. This is due to obstruction of the lumen of the upper urinary tract by a stone or the occurrence of a stenotic process at this level after a long stay of the stone. The role of periureteritis and pedunculitis in changes in urodynamics was mentioned above. Impaired patency of the upper urinary tract (this applies mainly to the ureteropelvic segment) may be of iatrogenic origin. You can read more about the diagnosis and treatment of urolithiasis at the following link: http://www.emcmos.ru/articles/mochevye-kamni.

Ureteral stricture occurs due to violations of surgical rules. To remove the stone, an incision is made passing through the segment or at the level of the pelvis, but it is not long enough to remove a larger stone. When the latter is forcibly removed, the segment ruptures. Impaired patency of the ureter complicates the operation of pyelo- or ureterolithotomy; in the postoperative period, suppuration occurs in the wound, often prolonged leakage of urine from the wound. In some cases, the latter mechanism is especially pronounced and leads to dire consequences.

Patient A., 35 years old (case history No. 74), was re-admitted to the clinic on January 12, 1976 with a complaint of aching pain in the left lumbar region. History of Botkin's disease. In 1972, kidney tuberculosis was diagnosed, for which she was treated at the Solnechny sanatorium. In May 1972, an x-ray revealed a stone in the lower third of the right ureter, which was then surgically removed. In 1973, a stone was detected in the left kidney, and by the end of the year - in the right; narrowing of the lower third of the right ureter was determined. A stone was removed from the right kidney, and plastic surgery was performed on the ureter of the same side. In April 1974, a stone was removed from the left kidney. Stone recurrence occurred after 5 months. The patient was admitted to the clinic for re-intervention. A survey X-ray shows a grade 3 coral stone in the left kidney. An excretory urogram shows hydropephrotic transformation on the right. Severe leukocyturia, microhematuria. Escherichia coli was cultured from urine.