OBLITERATIVE PYELOURETERITIS - A COMPLICATION OF STONE DISEASE IN PATIENTS WITH URINARY CONDUIT DIVERSION

In 4 patients with cutaneous urinary diversion who underwent percutane ous ureteral stone removal, similar ureteral complications developed a s a result of severe ureteritis at the site of the stone. Ureteral nar rowing occurred within days of percutaneous ureteral stone removal, pr ogressing to complete occlusion in 2 cases. These complications led to prolonged hospitalization and additional procedures for each patient. One patient with an occluded ureter was lost to followup. Two patient s responded satisfactorily to repeated ureteral dilations and prolonge d stenting. One patient underwent excision of the affected ureteral se gment. The average interval between tube placement and removal of tube s and stents was 15 weeks in 4 patients. The average inpatient period was 24 days. Patients with a cutaneous urinary conduit diversion may b e at increased risk for complications following percutaneous treatment of ureteral stones. This risk may be secondary to an intense inflamma tory response due to infection and other local factors.