What are risks of complications of ileal conduit and neobladder?

We preserve the vessels of the used segment to avoid necrosis. The difference of pressure and peristalsis promotes emptying to the exterior. Overall, complications (Stenosis, Hernia, Fistula) risk of ileal conduit is 25%. Neobladder risk of complications is 50%. First few days, there is a risk of fistula between digestive and urinary systems. Ileal conduit is the best procedure. Ureterostomy (Anastomosis with the skin) is another easier method, but the problem is that the ureter is narrow, which leads to recurrent stenosis. It is done for patients unable to undergo surgery