Advances in Ureteral Stent Design and Materials

Mosayyebi, Ali; Manes, Costantino; Carugo, Dario; Somani, Bhaskar

doi:10.1007/s11934-018-0779-y

Cited by 107 publications

(98 citation statements)

References 85 publications

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“…With the improvement of medical technology and the application of new biomaterials and ureteral stent coatings, the incidence of infection and encrustation has declined significantly [3]. However, many studies indicated that ureter stent indwelling time is highly associated with the incidence of encrustation [4].…”

Section: Discussionmentioning

confidence: 99%

Endoscopic combined intrarenal surgery in the prone-split leg position for successful single session removal of an encrusted ureteral stent: a case report

et al. 2020

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Background: The most serious complication of ureter stent is long-term retention of ureteral stent and stone formation around the stent. Case presentation: A 51-year old female patient with left ureteral stent placed 2 years before developed both pyelic and vesical stones on the two ends of the double J was admitted to our hospital. Intravesical lithotripsy, retrograde ureteroscopy, and percutaneous nephrolithotripsy were performed with the patient in the prone splitleg position. All the stones and the ureteral stent were successfully removed in a single session. Conclusions: Combined endoscopic techniques in the prone split-leg position can effectively and safely manage severely encrusted stents.

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Section: Discussionmentioning

confidence: 99%

Endoscopic combined intrarenal surgery in the prone-split leg position for successful single session removal of an encrusted ureteral stent: a case report

et al. 2020

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“…There are three main classes of materials used to fabricate ureteral stents: metals, polymers and biodegradable/bio-absorbable materials. In comparison to metal stents (introduced by Gort et al) that are more resistant [15][16][17][18][19], polymeric stents (thermoplastic, thermoset elastomers and silicone-based) are more tolerated by the patients. Bio-degradable/bio-absorbable stents are more recent, and have been shown to reduce the requirement for secondary procedures (i.e.…”

Section: Experimental Part Different Materials Used For Ureteral Stentsmentioning

confidence: 99%

Ureteral JJ Stent � Which One is Better?

Spînu¹,

Marcu²,

Socea³

et al. 2018

Rev. Chim.

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Ureteral stents represent a minimally invasive alternative to preserve urinary drainage whenever the ureter is damaged or is under a significant risk to be occluded due to extrinsic or intrinsic etiology, even due to iatrogenic cause. Ureteral obstruction caused by extrinsic compression is often associated with intra-abdominal neoplasms. The first-line therapy to relieve such obstructions is usually internal drainage with ureteral stents. Ureteral stents made of different materials have been designed to achieve the best drainage possible. In this study, we tried to compare different JJ stent materials � which are better and their pros and cons. The ideal stent that would combine perfect long-term efficacy with no stent-related morbidity is still lacking and stent usage is associated with several adverse effects that limit its value as a tool for long-term urinary drainage. Several new ideas on stent design, composition material and stent coating are currently under evaluation, and are trying to eliminate the drawbacks of ureteral stent usage. Almost every clinician is familiar with the drawbacks that are associated with stents, including infection, encrustation, pain and discomfort.

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“…However, due to the characteristics of impermeable urothelium and the continuous washing of urine, the effectiveness of local chemotherapy was limited. Therefore, it is needed to realize the controlled and sustained drug release in the upper tract, which can overcome the above problems (Mosayyebi et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Advances in Drug Delivery via Biodegradable Ureteral Stent for the Treatment of Upper Tract Urothelial Carcinoma

et al. 2020

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Drug eluting ureteral stent is an effective means for local drug delivery to the urinary tract. It can potentially solve a variety of upper urinary tract problems, such as stent-related urinary tract infections and discomfort, ureteral stricture, and neoplastic diseases. However, the release of drug elutes on the surface of biostable stents is unsustainable and uncontrollable. With the development of biomaterial science, the emergence of biodegradable ureteral stents (BUSs) provides a new approach for local drug delivery in the urinary tract. The drugs can be continuously released in a controlled manner from a drug-eluting BUS, when the stent degrades. Especially for the delivery of anti-tumor drugs, the stents can obviously improve the therapeutic effectiveness of the drugs by prolonging the contact duration of the drug and tumor cells. In addition, a secondary stent removal procedure can be avoided. The purpose of this review article is to provide an overview of anti-tumor drug-eluting BUSs and discuss the biomaterials and drug delivery systems of BUS that are currently being developed to deliver anti-tumor drugs for upper tract urothelial carcinoma.

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Advances in Ureteral Stent Design and Materials

Cited by 107 publications

References 85 publications

Endoscopic combined intrarenal surgery in the prone-split leg position for successful single session removal of an encrusted ureteral stent: a case report

Endoscopic combined intrarenal surgery in the prone-split leg position for successful single session removal of an encrusted ureteral stent: a case report

Ureteral JJ Stent � Which One is Better?

Advances in Drug Delivery via Biodegradable Ureteral Stent for the Treatment of Upper Tract Urothelial Carcinoma

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