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Long-term consequences of urethral stents
L Baert1, L Verhamme, H Van Poppel
1Department of Urology, University Hospital Sint-Pieter, Catholic University, Leuven, Belgium.
The Journal of Urology
|September 1, 1993
Summary
Self-expandable urethral stents show mixed results for treating urethral strictures. Fibrotic proliferation caused 4 failures, necessitating further treatment or stent removal, highlighting limitations for deep or traumatic strictures.
Area of Science:
- Urology
- Medical Devices
- Surgical Technology
Background:
- Urethral strictures can significantly impact quality of life.
- Minimally invasive treatments are sought to avoid complex surgical interventions.
Purpose of the Study:
- To evaluate the efficacy and long-term outcomes of self-expandable urethral stents (Wallstent) in patients with urethral strictures.
Main Methods:
- A cohort of 7 patients with urethral strictures received Wallstents.
- Follow-up ranged from 23 to 31 months to assess outcomes and complications.
Main Results:
- Four out of seven patients experienced stent failure due to exuberant fibrotic proliferation within the stent lumen.
- Complications required additional endoscopic treatment in 2 patients and surgical stent removal in 1 patient.
- Progressive fibrotic proliferation was observed in 2 additional patients, necessitating ongoing monitoring and potential future interventions.
Conclusions:
- Self-expandable urethral stents may not be suitable for strictures involving deeper tissue layers or traumatic origins.
- Close patient monitoring is crucial to manage long-term consequences, such as fibrotic proliferation.
- Further technological advancements and patient selection criteria are needed for optimal stent utilization.