Ureteric stents are used often following ureteroscopy for prevention of obstruction from edema and or stone fragments. They are often associated with pain, voiding often, the need to urinate quickly and finding blood in the urine called "lower urinary tract symptoms" or LUTS for short. There is randomized studies showing the efficacy of α-blockers such as tamsulosin in relieving "stent symptoms" (pain and LUTS). There is emerging but limited evidence to show that antimuscarinic medications, used to treat overactive bladder (OAB) have some efficacy in decreasing stent symptoms. Mirabegron is a beta-agonist used to decrease OAB symptoms. Mirabegron functions to mediate relaxation of the detrusor muscle and has been useful in treating OAB symptoms. Conventional antimuscarinic medications often have bothersome side effects like dry mouth, constipation, blurred vision and cognitive impairment. This may limit their use in some populations. Mirabegron is well-tolerated with a good safety profile and therefore may be useful in treating stent symptoms without the bothersome side effects commonly seen with antimuscarinic medications. . The investigators hypothesize that mirabegron is effective in decreasing ureteral stent related LUTS and pain.
Age range
18 Years
Sex
ALL
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Ureteral stent related pain and lower urinary tract symptoms (LUTS) as measured by the Ureteral Stent Symptom Questionnaire.
Timeframe: Measured twice, once at the time of surgery when stent is inserted and secondly at the time the stent is removed which will occur 5 to 10 days following surgery.