Journal
JOURNAL OF ENDOUROLOGY
Volume 20, Issue 5, Pages 300-304Publisher
MARY ANN LIEBERT, INC
DOI: 10.1089/end.2006.20.300
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Ureteral obstruction caused by extrinsic compression by a malignancy generally can be overcome initially with a ureteral stent. However, the long-term failure rate is high, usually necessitating placement of a nephrostomy tube. Herein, we present the initial case, in this country, of intractable ureteral obstruction managed successfully with the newly developed all-metal Resonance stent (Cook Ireland Ltd., Limerick, Ireland) constructed of MP35N((R)) alloy, a composite of nonmagnetic nickel-cobalt-chromium-molybdenum. The patient is a 64-year-old woman with metastatic breast cancer causing retroperitoneal fibrosis and ureteral obstruction diagnosed laparoscopically. The obstruction failed to respond to placement of a single 7F double-J stent and then of two 6F double-J stents in the left ureter. As a last resort, in order to avoid nephrostomy-tube placement, the 6F metal stent was placed; this provided unobstructed flow of urine, as documented on a subsequent Whitaker test and, most recently, on a renal scan, 4 months after initial stent placement.
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