Robot-assisted pyeloplasty with buccal mucosa graft for the management of an extended recurrent ureteropelvic junction stricture

A clinical case of robot-assisted pyeloplasty with buccal mucosa graft of an extended recurrent stricture of the left ureteropelvic junction is presented. The patient had previously undergone left-sided laparoscopic antevasal pyeloplasty and retrograde endopyelotomies with ureteral stenting. However, after these interventions, the dilatation of the left pelvicalyceal system persisted, the patient complained of lumbar pain and periodic exacerbations of chronic pyelonephritis. Transperitoneal robotic access isolated the ureteral upper third and the ureteropelvic junction from scar tissue, after dissecting the narrowed ureteral section, its length was about 3.0 cm. In this regard, plastic surgery was performed with a buccal mucosa graft, the ureter was drained with a stent. There were no postoperative complications, and on day 3 the patient was discharged. The stent was removed 4 weeks after. During the control ultrasound examination, the renal pelvicalyceal system was relatively reduced, and the patient did not notice any pain.