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  • Title: Metal stents: a new treatment of malignant ureteral obstruction.
    Author: Barbalias GA, Siablis D, Liatsikos EN, Karnabatidis D, Yarmenitis S, Bouropoulos K, Dimopoulos J.
    Journal: J Urol; 1997 Jul; 158(1):54-8. PubMed ID: 9186322.
    Abstract:
    PURPOSE: We report our experience with the use of metallic self-expandable and balloon expandable stents for the treatment of malignant ureteral obstruction. MATERIALS AND METHODS: We treated 12 consecutive patients with malignant ureteral obstruction, for a total of 14 ureters with stents placed. We placed metallic balloon expandable stents in 6 patients and self-expandable metallic stents in the remaining 6. Mean patient age was 65 years and mean followup was 9 months (range 8 to 16). RESULTS: Of the ureters 11 were patent without any additional manipulations during followup of 8 to 16 months. Secondary interventions were needed in 3 cases because of obstructive urothelial hyperplastic reaction, tumor ingrowth and local recurrence of the primary cancer invading the upper end of the stent. Two patients died 2 and 10 months after placement of the stent. CONCLUSIONS: Both types of metal stents have advantages and disadvantages that must be balanced against each other when choosing the ideal device for the treatment of obstruction. Implantation of a metal self-expanding or balloon expanding stent is safe and effective for the palliative treatment of malignant ureteral obstruction in late stage cancer patients.
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