The effect of ureteric stents on urine flow: reflux

Journal of Mathematical Biology
Linda CummingsS J Graham

Abstract

If the ureter becomes blocked, the resultant increased pressure may be relieved by inserting a double-J stent (a polymer tube, usually punctuated with holes). A major clinical problem associated with stent use is reflux (retrograde flow of urine from the bladder to the kidney), which may result in infections, scarring, and even renal failure. We develop a mathematical model, treating the ureter as an elastic tube and the stent as a permeable rigid tube within it. We investigate how the number of holes in the stent wall affects the total amount of reflux that occurs when bladder pressure rises, by considering the limits of a highly-permeable stent, and an impermeable stent. We find that, in the scenarios we consider, the highly-permeable stent gives rise to less total reflux than the impermeable one.

Citations

Feb 28, 2009·Journal of Mathematical Biology·L R BandJ A D Wattis
Aug 14, 2010·World Journal of Pediatrics : WJP·Tunç Ozdemir, Ahmet Arikan
May 9, 2007·Journal of Endourology·Thomas A Spirka, Margot S Damaser
May 29, 2008·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Norbert LaubeChristian Fisang
Jul 10, 2013·Journal of Clinical Nursing·Jon GardnerAlanna Forester
Apr 30, 2016·Computational and Mathematical Methods in Medicine·J Carlos Gómez-BlancoFederico Soria
Feb 27, 2013·Computer Methods in Biomechanics and Biomedical Engineering·Dimitrios P Sokolis
Nov 14, 2018·Journal of Endourology·Jessica G WilliamsDerek E Moulton
Nov 9, 2012·American Journal of Physiology. Renal Physiology·Kristian Vinter JuulGary L Robertson
Jan 26, 2020·International Journal for Numerical Methods in Biomedical Engineering·Kyung-Wuk KimYasutaka Baba
Jul 1, 2017·Computational and Mathematical Methods in Medicine·Kyung-Wuk KimSang-Ho Suh
Apr 3, 2019·World Journal of Urology·Daniel Ness, Jonathon Olsburgh
Jan 13, 2011·Scandinavian Journal of Urology and Nephrology·Juha LumiahoMartti Talja
Jun 7, 2017·Technology and Health Care : Official Journal of the European Society for Engineering and Medicine·Hyoung-Ho KimSang-Ho Suh
Feb 18, 2021·International Urology and Nephrology·Tal Amitay-RosenBrian Berkowitz
Oct 8, 2021·Computer Methods in Biomechanics and Biomedical Engineering·Akash Pradip Mandal, Prashanta Kumar Mandal

❮ Previous
Next ❯

Related Concepts

Related Feeds

Bladder Carcinoma In Situ

Bladder Carcinoma In Situ is a superficial bladder cancer that occurs on the surface layer of the bladder. Discover the latest research on this precancerous condition in this feed.