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Does Ureteral Stent Drainage Prior to Cystectomy Increase the Risk of Subsequent Upper Tract Urothelial Carcinoma and Ureteral Complications?

Miest TS, Sharma V, Boeri L, Tollefson MK, Thompson RH, Boorjian SA, Frank I, Karnes RJ. Does Ureteral Stent Drainage Prior to Cystectomy Increase the Risk of Subsequent Upper Tract Urothelial Carcinoma and Ureteral Complications?. Urology. 2021 Jul 1; 153:215-220.

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Abstract:

OBJECTIVE: To guide management of preoperative hydronephrosis prior to radical cystectomy (RC), we compared post-RC risks of upper tract urothelial carcinoma (UTUC) and ureteroenteric anastomotic complications between ureteral stent and percutaneous nephrostomy tube drainage. METHODS: Patients who underwent RC for urothelial carcinoma without a prior diagnosis of UTUC at our institution between 2000 and 2015 were included and divided into 4 patient groups: (1) no hydronephrosis (75%, N  =  787); (2) hydronephrosis without preoperative upper tract drainage (13%, N  =  132); (3) hydronephrosis treated with nephrostomy tube (3%, N  =  36); (4) hydronephrosis treated with ureteral stent (9%, N  =  94). The incidence of post-RC UTUC and ureteral complications was compared using Kaplan-Meier analyses and multivariable Cox proportional hazard modeling. RESULTS: We identified a total of 1049 patients who underwent RC (median postoperative follow-up 4.3 years). Five-year post-RC UTUC incidence was 6.6%, 10.2%, 17%, 18.7% for groups 1-4, respectively (P = .13). On multivariable analysis, nephrostomy tube drainage (hazard ratio [HR] 4.10, P  =  .02) and preoperative ureteral stenting (HR 2.35, P  =  .04) were both associated with UTUC after RC, but ureteral stenting did not have a significantly higher association with UTUC than nephrostomy tube drainage. Severe hydronephrosis was also associated with development of UTUC (HR 4.03, P  =  .02). The incidence of ureteroenteric anastomotic complications did not vary by drainage modality. CONCLUSION: Preoperative hydronephrosis was associated with UTUC after RC, but ureteral stent placement did not increase the risk of UTUC or ureteral complications relative to nephrostomy tube placement. The choice of hydronephrosis drainage pre-RC should not be guided by concern for UTUC risk.





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