Ureteric Stents: Their Use and Abuse
Ureteric stents are used to prevent or treat obstruction of the urine flow from the kidney or to allow appropriate healing after a procedure on the renal pelvis or ureter. Placement of stents is in most circumstances a simple procedure if care is taken to follow a few principles. They can be inserted retrogradely up the ureter or percutaneously down the ureter. Stents are made of soft, synthetic material with memory molecules that uncurl to facilitate insertion, but remain coiled in the human body after placement. Stents have a limited life when inserted into the human body. They are prone to encrustation and upward migration and can easily be forgotten unless there is a tracking system to record and remind patients of the due date of removal.
KeywordsBladder Biofilm Catheter Encrustation Hydrophilic Guidewire Percutaneous Ureteroscope Ureteric stent Urine History
- 1.Lewis B. History of urology, vol. 1. Baltimore: Williams and Wilkins; 1988. p. 70–5.Google Scholar
- 2.Nietze M. Lehrbuch de kystosskopie: Ihre lechnik und klinische bedeutung. Berlin: JE Bergman; 1907.Google Scholar
- 6.Hepperlen TK, Mardis HK. Pigtail stent, termed means of ureteral surgery. Trends Clin Urol. 1978;1:405.Google Scholar