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[Improved tumor stent for internal palliative urinary diversion].
R W Schlick1, E Seidl, J Küster
1Klinik für Urologie und Kinderurologie, Klinikum Fulda, Akademisches Lehrkrankenhaus, Philipps-Universität Marburg.
Der Urologe. Ausg. A
|May 8, 1999
Summary
A novel, stabilized ureteral stent offers improved vertical stability for tumor-induced ureteral compression, reducing complications like hydronephrosis. This new stent provides better flow and easier application compared to traditional options.
Area of Science:
- Urology
- Biomedical Engineering
Context:
- Extrinsic ureteral compression due to tumors often leads to complications with standard flexible ureteral stents.
- Existing stents lack vertical stability, causing compression, hydronephrosis, or pyonephrosis.
Purpose:
- To introduce a newly developed, stabilized endoureteral stent designed for tumor-induced ureteral compression.
- To evaluate the efficacy and safety of this novel stent in clinical application.
Summary:
- The new tumor stent features a high-stability plastic corpus with elastic J-shaped ends for secure fixation.
- It maintains a comparable internal diameter to common double-J stents but offers superior vertical stability.
- Clinical application in 52 patients showed no issues, with stents remaining in place for up to 15 months without tumor-induced compression or encrustation.
Impact:
- This stabilized stent represents a significant improvement over percutaneous nephrostomy or frequent stent changes for managing extrinsic ureteral compression.
- It offers enhanced internal flow and patient tolerance, improving outcomes in oncologic urology.
- The stent's design and ease of application minimize the need for specialized instrumentation or extensive training.