The aim of this study is of Threatening ureteral deterrent (MUO) is a staggering difficulty of disease, and it is usually treated by waste through percutaneous nephrostomy (PCN). The target of this examination was to decide the viability, wellbeing, and utilitarian result of pair ureteral stents (TUS) in the administration of MUO. The clinical records of all patients with MUO who went through swell expansion and TUS addition in Sheba Medical Center somewhere in the range of 2014 and 2018 were reflectively examined. Security was estimated by intra-and postoperative difficulties, adequacy by an ideal opportunity to occasion examination, and disappointment by the prerequisite of PCN owing to renal disappointment or disease. Free danger indicators of TUS disappointment were controlled by a multivariable Cox relapse examination. An aggregate of 103 systems were performed on 81 patients during the investigation time frame. The middle follow-up was 32 weeks (interquartile range [IQR] 24–67). 59 (72.9%) patients stayed with TUS while 22 patients required PCNs. The middle chance to procedural disappointment was 4 months (IQR 2–8). Difficulties created after 18 (22.2%) techniques. Two patients mentioned stent expulsion because of lower urinary lot side effects.

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