Background: We aimed to compare the results of long-term use of two types of metal stent for chronic benign\nureteral strictures.\nMethods: Our study included 46 ureter units (UUs) that underwent metal stent placement from 2010 to 2017. We\nincluded benign ureteral strictures causes by variety reasons that could not be solved by other treatment and\nmalignant obstructions were excluded. Covered mesh stent (Uventaâ?¢) and a thermo-expandable stent (Memokath\n051â?¢) were used. Primary success was defined as maintaining patency without procedures and overall success was\ndefined as maintaining patency with additional procedures.\nResults: We placed covered mesh stents in 25 UUs and thermo-expandable stents in 21 UUs..............
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