To assess the effectiveness of Mirabegron in reducing urodynamic detrusor overstimulation in patients with Overactive Bladder Syndrome (OAB).

Objective: To investigate the efficacy of mirabegron in treating overactive bladder by assessing its impact on urodynamic detrusor overactivity (DO). Study Design: Cross-sectional study. Setting: Center for Urology and Transplantation in Sindh. Period: April 6, 2022, to October 4, 2022. Methods: Sixty-four individuals presenting OAB symptoms and without prior OAB medication use were included after obtaining informed consent and conducting relevant medical evaluations. Patients demonstrating signs of detrusor overactivity were evaluated through urodynamic assessments. Collected data, including patient history and study outcomes, were recorded using a standardized Proforma (Annexure I). Patient demographics, age, and gender distribution were documented. Patients with urodynamic detrusor overactivity were administered 50.0 mg mirabegron tablets once daily for a period of 13 weeks. A noteworthy percentage of patients reported substantial success after three months of treatment. Results: The average age of study participants was 50 years. The mean duration of OAB symptoms was 20.22 ± 15.38 months. Of the total 64 patients, 41 were female (64.06%) and 23 were male (34.94%). Notably, successful treatment outcomes were observed in 49 cases (76.56%). Conclusion: Mirabegron emerges as a valuable therapeutic option for individuals dealing with overactive bladder. This study underscores its efficacy in managing OAB sympt0oms, with a notable success rate of 76.6%. These findings contribute to the growing body of evidence supporting mirabegron as an effective treatment for overactive bladder syndrome.