A surgically produced arti?cial channel between the URETER and the large bowel (see INTESTINE). A form of diversion of the URINE ?ow, the URINARY BLADDER is bypassed and the ureters drain into the sigmoid COLON. The operation is done when a bladder is removed, usually because of cancer.
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).
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.... ureterosigmoidostomy
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