Dipping technique for ureteroileal anastomosis in orthotopic ileal neobladder: 20-year experience in 670 patients-no stenosis with preservation of the upper tract.

Objectives. Many techniques were described for ureteroileal anastomosis in orthotopic bladder substitution, ranging from nonrefluxing to refluxing techniques, all aiming at preservation of the upper tract. We describe our technique of dipping the ureter into the ileal pouch, which is simple and had no complications. Patients and Methods. Our technique implies dipping the ureter in the lateral side of the pouch, in right and left corners, with two rows of four sutures fixing the seromuscular layer of the ureter to the seromuscular layer of the ileal pouch. The procedure was applied in both normal ureteric calibre and dilated ureter. Total number of procedures done was 1,340 ureters in 670 patients after radical cystectomy for invasive carcinoma of the bladder of urothelial and nonurothelial cancer. Results. Followup of patients every six months and onward did not show stenosis in the ureteroileal anastomotic site. Filling of the ureter with contrast dye on ascending pouchogram was observed in patients who had considerably dilated ureters at the time of cystectomy. Normal ureter did not show clinical reflux but radiological filling of the ureter when the intravesical pressure exceeded the leak point pressure. Time to perform the dipping technique was 5-7 minutes for each site. Conclusion. Dipping technique for ureteroileal anastomosis in orthotopic ileal neobladder avoids the incidence of stenosis, preserves the upper tract, is a fast procedure, stands the evaluation in long-term followup, and was practiced successfully for twenty years.