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Ureteral stent Ureteral stent (detail) A ureteral stent (pronounced you-REE-ter-ul), or ureteric stent, is a thin tube inserted into the ureter to prevent or treat obstruction of the urine flow from the kidney. The length of the stents used in adult patients varies between 24 and 30 cm. Additionally, stents come in differing diameters or gauges ...
A ureteric balloon catheter is a balloon catheter intended for treating strictures of the ureter. In fact it is a double J stent on which a balloon is mounted. It is connected to a delivery device (pusher) to introduce it from the bladder into the ureter. The system comprises a non-return valve device, and a pusher with a stylet and two ports.
Surgical techniques such as the psoas hitch procedure involve mobilizing the bladder to bridge a gap in the ureter by securing it to the psoas muscle for added stability. [6] The Boari flap technique reshapes part of the bladder wall into a tube to replace a damaged ureter segment, while appendiceal ureter interposition uses the appendix as a ...
Research is currently uncertain if placing a temporary stent during ureteroscopy leads to different outcomes than not placing a stent in terms of number of hospital visits for post operative problems, short or long term pain, need for narcotic pain medication, risk of UTI, need for a repeat procedure or narrowing of the ureter from scarring. [117]
Risks during surgery include heart problems, pulmonary (lung) complications, development of blood clots , blocking of arteries , and injury to adjacent structures, such as bowel or vascular entities. Inadequate ureteral length may also be encountered, leading to ureteral kinking and subsequent obstruction.
Pyeloplasty is a type of surgical procedure performed to treat an uretero-pelvic junction obstruction if residual renal function is adequate. [1]This revision of the renal pelvis treats the obstruction by excising the stenotic area of the renal pelvis or uretero-pelvic junction and creating a more capacious conduit using the tissue of the remaining ureter and renal pelvis.
A retrograde pyelogram may be performed to find the cause of blood in the urine, or to locate the position of a stone or narrowing, tumour or clot, as an adjunct during the placement of ureteral stents. [13] It can also be used ureteroscopy, or to delineate renal anatomy in preparation for
After a diagnosis of ureteral cancer, surgery is oftentimes recommended to help remove the infected ureter. For early stage ureteral patients, removing only a portion of the ureter can be successful, whereas in more advanced cases full removal of the ureter as well as the associated kidney (nephroureterectomy) and part of the bladder is ...