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HSR&D Citation Abstract

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Agarwal DK, Krambeck AE, Sharma V, Maldonado FJ, Westerman ME, Knoedler JJ, Rivera ME. Treatment of non-obstructive, non-struvite urolithiasis is effective in treatment of recurrent urinary tract infections. World journal of urology. 2019 Oct 23.
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Abstract: PURPOSE: To determine if treatment of non-obstructing urolithiasis is effective in management of recurrent UTI. MATERIALS AND METHODS: A retrospective review was performed of patients undergoing elective management of non-struvite upper tract urinary calculi with recurrent UTI from 2009 to 2016. Recurrent UTI was defined at? = 3 UTI in 12 months, with symptoms and documented urine culture. Preoperative CT was performed in all patients to determine stone burden. All patients had postoperative imaging and? = 12 months of follow-up. Pre- and postoperative variables were between patients who had recurrent UTI after treatment versus those who did not. RESULTS: 46 patients met inclusion criteria. 42 (91.3%) were female. Median age was 63.7 years (IQR 49.1, 73.4) and median total stone burden was 20 mm (IQR 14-35). Within the cohort, 20 (43.5%) underwent ureteroscopy only, 26 (56.5%) underwent PCNL?±?URS, and none underwent ESWL. Median postoperative follow-up was 2.9 years (IQR 2.0, 4.3). Only five patients (10.9%) had recurrent UTI after treatment. 80% were with the preoperative pathogen. The presence of residual stone was an independent risk factor for recurrent UTI after treatment (p? < 0.046). Diabetes, hypertension, immunosuppression and chronic kidney disease were not. CONCLUSIONS: Stone removal for patients with recurrent UTIs was associated with a high rate of success (89.1%) in elimination of further recurrent UTIs. Residual fragments are independently associated with persistent recurrent UTIs and thus, complete stone removal is of paramount importance in treatment of this patient population.

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