Abstract
Background: To determine association between urine pH and OAB symptoms and to determine if urinary alkalization improves overactive bladder (OAB) symptoms. Methods: 659 patients with OAB were enrolled in this study between June 2012 and May 2014. 329 patients (group 1) were included in the final analysis. 201 adults were used as a control group (group 2). 24-hour urinary pH and the validated Turkish version of the OAB-V8 questionnaire were performed in patients. A 24-hour urine pH <6.2 was considered acidic urine. In the second part, a diet program was performed for 4 weeks in 30 participants. Urine pH values and OAB-V8 scoring results were recorded before the diet program and 2 and 4 weeks after the diet program. Results: Acidic urinary pH was determined in 61.4% of patients with OAB. There was a significant association between the presence of acidic urine and OAB. Also, the OAB-V8 scores of patients were significantly higher in patients with acidic urine than nonacidic urine. OAB-V8 scores of patients showed statistically significant improvement after diet therapy (17.87 ± 6.52 vs. 10.43 ± 7.17; p < 0.001). Conclusions: We found that acidic urinary pH was closely associated with OAB, and alkalization of urine improved lower urinary tract symptoms. We suggest that urinary pH should be considered as a parameter in treatment planning of patients with OAB.
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