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Malignant ureteral obstruction: preliminary results of treatment with metallic self-expandable stents.
- Source :
-
Radiology [Radiology] 1993 Jan; Vol. 186 (1), pp. 169-73. - Publication Year :
- 1993
-
Abstract
- Self-expandable metal stents 7 mm in diameter were percutaneously implanted into 13 ureters in 10 patients with malignant ureteral obstruction not amenable to double-J stent placement. In nine ureters, one stent was placed, and in four ureters, two overlapping stents were placed. Primary reconstitution of ureteral patency was achieved in all ureters. After 1-2 weeks, four ureters showed a urothelial reaction encroaching on the lumen of the ureter, and a double-J stent was placed coaxially. One ureter was occluded by urothelial hyperplasia 4 weeks after stent placement, and a double-J stent was therefore placed. One ureter was occluded 8 months after stent placement by distal tumor overgrowth. The other ureters showed no signs of obstruction during a follow-up of 3-14 (average, 5.8) months. Peristalsis was preserved at both ends of the stent in all ureters. The use of this stent alone or in combination with a double-J stent alleviated upper urinary tract obstruction and avoided external drainage in all patients.
Details
- Language :
- English
- ISSN :
- 0033-8419
- Volume :
- 186
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Radiology
- Publication Type :
- Academic Journal
- Accession number :
- 8416559
- Full Text :
- https://doi.org/10.1148/radiology.186.1.8416559