End-to-end ureteroileal anastomosis for ileal conduits.

In the "Y" anastomosis, both ureters are spatulated and joined together to form a single tube which is anastomosed to the proximal end of the ileum. This technique has several theoretical advantages which appear to be borne out in practice when the results of its use in 101 patients followed for up to 12 years are reviewed. Only 2 anastomotic leaks needed operative treatment and only 4 patients developed ureteroileal stenosis. Renal function remained unchanged or improved in 84% of the patients, and definite hydronephorsis or pyelonephritis developed in only 4% of the kidneys. These results show that this method of ureteroileal anastomosis is at least as good as, and possibly better than, other techniques.