Ethical Issues in Ureteric Stenting

Kulkarni, Ravi

doi:10.1002/9781119085713.ch14

Cited by 2 publications

(3 citation statements)

References 20 publications

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“…A review of the literature found no references about the proportion of the abdominal and pelvic segments of ureters in pigs. In humans, similar lengths were reported between these segments of ureter 48 , but this work demonstrated that, in pigs, the division of the ureter is uneven, with the abdominal segment corresponding to approximately 2/3 of the length.…”

Section: Discussionsupporting

confidence: 70%

“…The human ureter has three points of physiological narrowing: the ureteropelvic junction, the crossing of the common iliac vessels and the ureterovesical junction 48 , 52 . The methodology used in this study allowed to verify the narrowing points of the ureteral lumen when crossing the iliac vessels in all animals and at the ureterovesical junction in two animals, both on the left.…”

Section: Discussionmentioning

confidence: 99%

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Image-guided study of swine anatomy as a tool for urologic surgery research and training

et al. 2020

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Section: Discussionsupporting

confidence: 70%

Section: Discussionmentioning

confidence: 99%

Image-guided study of swine anatomy as a tool for urologic surgery research and training

et al. 2020

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“…easily located using X-rays or ultrasound), ix) easily replaced, x) well tolerated by the patient (causing minimal pain and irritation), and xi) cost effective [3,4]. The typical polymeric ureteral stent currently in clinical use has a stiff and straight central stent region and ends in coils at either end to hold it in position in the ureters; these coils give rise to the name double-J stent [6].…”

Section: Introductionmentioning

confidence: 99%

Freeze-casting porous chitosan ureteral stents for improved drainage

2019

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As a new strategy for improved urinary drainage in parallel to the potential for additional functions such as drug release and self-removal, highly porous chitosan stents are manufactured by radial, bi-directional freeze-casting. Inserting the porous stent in a silicone tube to emulate its placement in the ureter shows that it is shape conforming and remains safely positioned in place, also during flow tests, including those performed in a peristaltic pump. Cyclic compression tests on fullyhydrated porous stents reveal high stent resilience and close to full elastic recovery upon unloading. The drainage performance of the chitosan stent is evaluated, using effective viscosity in addition to volumetric flow and flux; the porous stent's performance is compared to that of the straight portion of a commercial 8 Fr double-J stent which possesses, in its otherwise solid tube wall, regularly spaced holes along its length. Both the porous and the 8 Fr stent show higher effective viscosities when tested in the silicone tube. The performance of the porous stent improves considerably more (47.5%) than that of the 8 Fr stent (30.6%) upon removal from the tube, illustrating the effectiveness of the radially aligned porosity for drainage. We conclude that the newly-developed porous chitosan ureteral stent merits further in vitro and in vivo assessment of its promise as an alternative and complement to currently available medical devices.

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Ethical Issues in Ureteric Stenting

Cited by 2 publications

References 20 publications

Image-guided study of swine anatomy as a tool for urologic surgery research and training

Image-guided study of swine anatomy as a tool for urologic surgery research and training

Freeze-casting porous chitosan ureteral stents for improved drainage

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