Impact of bariatric surgery on urinary incontinence in morbidly obese individuals

Background: There is scanty evidence on the impact of bariatric surgery on urinary incontinence (UI) in the Asian population. Methodology: Patients who underwent bariatric surgery from June 2018 to June 2019 were screened using the International Consultation on Incontinence Questionnaire-Urinary Incontinence-Short Form (ICIQ-UI-SF) questionnaire. Patients having UI were identified and followed until 1 year of surgery using the ICIQ-UI-SF. These were classified as having stress, urge, or mixed type of UI. The prevalence, change in scores, and the number of pads used were compared at baseline and at follow-up. Results: A total of 148 patients underwent bariatric surgery of whom, 41 patients (M = 2, F = 39) had UI. Stress incontinence was seen in 70.7%, 19.5% had urge incontinence, and rest had the mixed type. Using logistic regression, it was found that female gender was the most important predictor of having UI (OR: 8.33). The prevalence of UI decreased from 27.7% at baseline to 8.1% at 6 months and 3.4% at 12 months. The mean ICIQ-UI-SF score improved from 8.76 (SD = 3.2) at baseline to 0.66 (SD = 2.1) at 12 months of follow-up. The proportion of patients with UI using any number of pads decreased from 92.7% at baseline to 9.8% at 12 months. There was a decrease in the number of patients having moderate to very severe UI from 35 (85.4%) at baseline to 2 (4.9%) at 12 months. Proportion of patients showing resolution was highest among the stress incontinence group at 96.5%. Presence or absence of comorbidities did not significantly influence the ICIQ-UI-SF scores. Conclusion: Bariatric surgery leads to profound improvement in UI in obese individuals which is well sustained until 1 year of follow-up. Resolution rates might be higher in Asian population.