Final answer:
Transureteroureterostomy is a surgical procedure to connect one ureter to another, bypassing a damaged or obstructed segment and allowing for proper urine flow from the kidneys to the bladder.
Step-by-step explanation:
Transureteroureterostomy is a surgical procedure to connect one ureter to another ureter. This surgery is performed when there is a need to bypass a damaged or obstructed segment of the ureter, allowing urine to flow from one kidney to the other and then into the urinary bladder. Ureters are critical structures in the urinary system that transport urine from the kidneys to the bladder, where it is stored before urination. The ureters are muscular tubes that employ peristalsis to move urine efficiently. Their oblique entry into the bladder helps prevent backflow of urine, a mechanism which is protective against infections such as UTIs.
Isolating the diseased segment and then connecting the healthy portions of both ureters is the critical focus during transureteroureterostomy. This procedure may be necessary due to severe injury, congenital defects, or diseases that compromise the integrity or patency of one ureter while leaving the other ureter intact and functional.