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  • Title: Long-term results of antegrade endoureterotomy using the holmium laser in patients with ureterointestinal strictures.
    Author: Laven BA, O'Connor RC, Steinberg GD, Gerber GS.
    Journal: Urology; 2001 Dec; 58(6):924-9. PubMed ID: 11744460.
    Abstract:
    OBJECTIVES: To investigate the effectiveness and morbidity of percutaneous laser endoureterotomy in the management of ureterointestinal anastomotic strictures after radical cystectomy and urinary diversion. METHODS: Between May 1997 and August 2000, 19 percutaneous endoureterotomy incisions, including 3 repeated incisions, were performed on 15 patients with a mean age of 61 years (range 41 to 80) to treat ureterointestinal strictures. A total of 16 renal units were treated (9 left, 7 right), including one bilateral procedure. All procedures were performed using a 200-micrometer holmium laser fiber in antegrade fashion with a 7.5F flexible ureteroscope. A nephroureteral stent was left in place for 4 to 6 weeks postoperatively. Success was defined as radiologic improvement and/or the ability to return to full activity in the absence of flank pain, infection, or the need for ureteral stents or nephrostomy tubes. RESULTS: With a median follow-up of 20.5 months (range 9 to 41), the overall success rate was 57% (8 of 14 renal units). Two patients were lost to follow-up. The mean operative time was 91 minutes, and no perioperative complications occurred. Three patients required repeated endoureterotomies, with two requiring open reimplantation. Overall, the endoureterotomy failed in 6 patients in the series, with five of the six failures involving left-sided strictures. CONCLUSIONS: Percutaneous endoureterotomy is an effective, minimally invasive treatment option for patients with ureterointestinal strictures after urinary diversion. Better visualization and a more precise incision may make the holmium laser a safer cutting modality than alternative methods in patients with ureteroenteric strictures. Patients with left-sided ureterointestinal strictures should be cautioned that endourologic management might have a lower success rate.
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