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[Initial experiences with a self-expanding metal stent in malignant ureteral compression]
1Abteilung Radiologie I, Krankenhaus der Barmherzigen Schwestern vom Heiligen Kreuz, Wels.
Rofo : Fortschritte Auf Dem Gebiete Der Rontgenstrahlen Und Der Nuklearmedizin
|January 1, 1992
Summary
Self-expanding metallic stents effectively treated malignant hydronephrosis in 12 ureters, showing a 90.9% patency rate after 6 months. These ureteral stents provided durable palliation for malignant ureteral obstruction.
Area of Science:
- Urology
- Oncology
- Biomedical Engineering
Background:
- Malignant ureteral obstruction causes hydronephrosis, significantly impacting patient quality of life.
- Traditional treatments for malignant ureteral obstruction can be invasive and have limited long-term efficacy.
Purpose of the Study:
- To evaluate the efficacy and durability of self-expanding metallic stents for treating hydronephrosis secondary to malignant ureteral compression.
- To assess the patency rates and management of complications associated with metallic stent implantation.
Main Methods:
- Self-expanding metallic stents were implanted in 12 ureters across 10 patients with malignant compression.
- Implantation routes included transureteral, transrenal, and combined approaches.
- Stent patency and complications were monitored over the patients' lifetimes.
Main Results:
- A high patency rate of 90.9% was observed at 6 months post-implantation.
- Stents demonstrated durability, withstanding tumor pressure for the remainder of patients' lives.
- Complications such as stent incrustation and ureteral kinking were manageable.
Conclusions:
- Self-expanding metallic stents are a safe and effective treatment option for malignant hydronephrosis, offering durable palliation.
- Metallic stents provide a reliable solution for managing ureteral obstruction caused by malignant compression.
- Interventional techniques, including combined stent and plastic endoprosthesis use, can overcome obstruction effectively.