n. the operation of implanting the ureters into the sigmoid colon (see ureteroenterostomy). This method of permanent urinary diversion may be used after *cystectomy or to bypass a diseased or damaged bladder. The urine is passed together with the faeces, and continence depends upon a normal anal sphincter. The main advantage of this form of diversion is the avoidance of an external opening and appliance to collect the urine; the disadvantages include possible kidney infection, acidosis, and long-term development of cancer of the colon 20–30 years after the procedure.
n. an artificial communication, surgically created, between the ureter and the bowel. In this form of urinary diversion, which bypasses the bladder, the ureters are attached to the sigmoid colon (see ureterosigmoidostomy).... ureteroenterostomy
any of various techniques for the collection and diversion of urine away from its usual excretory channels, after the bladder has been removed (see cystectomy) or bypassed. These techniques include *ureterosigmoidostomy and the construction of an *ileal conduit. Continent diversion, usually after cystectomy, may be achieved by constructing a reservoir or pouch from a section of small or large intestine or a combination of both. This can be emptied by catheterization via a small *stoma and has the advantage over an ileal conduit in not requiring a urinary drainage bag.... urinary diversion
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