Document Type
Article
Publication Date
2014
Digital Object Identifier (DOI)
https://doi.org/10.1590/S1677-5538.IBJU.2014.02.13
Abstract
Introduction: The limitations of traditional ureteral stents in patients with deficiencies in ureteral drainage have resulted in frequent stent exchanges. The implementation of metallic stents was introduced to improve the patency rates of patients with chronic upper urinary tract obstruction, obviating the need for frequent stent exchanges. We report our clinical experiences with the use of metallic ureteral stents in the management of poor ureteral drainage.
Materials and Methods: Fifty patients underwent metallic ureteral stent placement from 2009 to 2012. Stent failure was defined as an unplanned stent exchange, need for nephrostomy tube placement, increasing hydronephrosis with stent in place, or an elevation in serum creatinine. Stent life was analyzed using the Kaplan-Meier methodology, as this was a time dependent continuous variable. A cost analysis was similarly conducted.
Results: A total of 97 metallic stents were placed among our cohort of patients: 63 in cases of malignant obstruction, 33 in the setting of cutaneous ureterostomies, and 1 in an ileal conduit urinary diversion. Overall, stent failure occurred in 8.2% of the stents placed. Median stent life was 288.4 days (95% CI: 277.4-321.2 days). The estimated annual cost for traditional polymer stents (exchanged every 90 days) was $9,648-$13,128, while the estimated cost for metallic stents was $4,211-$5,313.
Conclusion: Our results indicate that metallic ureteral stent placement is a technically feasible procedure with minimal complications and is well tolerated among patients. Metallic stents can be left in situ for longer durations and provide a significant financial benefit when compared to traditional polymer stents.
Rights Information
This work is licensed under a Creative Commons Attribution-Noncommercial 3.0 License
Was this content written or created while at USF?
Yes
Citation / Publisher Attribution
International braz j urol, v. 40, issue 2, p. 225-231
Scholar Commons Citation
Baumgarten, Adam S.; Hakky, Tariq S.; Carrion, Rafael E.; Lockhart, Jorge L.; and Spiess, Philippe E., "A Single-Institution Experience with Metallic Ureteral Stents: A Cost-Effective Method of Managing Deficiencies in Ureteral Drainage" (2014). Urology Faculty Publications. 15.
https://digitalcommons.usf.edu/uro_facpub/15
