Pediatric urethrovaginal reflux: an underestimated cause of urinary incontinence and its successful management

Introduction and hypothesis Urethrovaginal reflux (UVR) secondary to vaginal urine entrapment is an unnoticed cause of daytime urinary leakage in toilet-trained girls. Our aim is to emphasize the diagnosis of UVR as a cause of urinary incontinence, its predisposing factors, early detection, and treatment. Methods A total of 25 girls aged between 9 and 14 years presented with mixed daytime urinary incontinence from 2019 to 2021. They were evaluated by detailed history, vaginal examination, focused neurological examination, bladder diaries, urine analysis, uroflowmetry, and residual urine assessment. Micturating cystourethrography was also performed in those girls who did not show improvement with a conservative line of management. Results The parents of these girls were educated about the cause of leakage. They were treated with behavioral modifications, urotherapy, correcting toilet postures, and reverse sitting on the commode. Urethrovaginal reflux was found in 6 of the 25 girls (24%). Their ages were 9, 10, 10, 11, 12, and 14 years respectively. Two girls (10 and 14 years old) had a body mass index more than 25. They all had a typical history of a small quantity of urine leakage 5–10 min (post-micturition dribble) after every void. At follow-up after 12 months, all of them were free from urinary incontinence. Conclusions Urethrovaginal reflux should be considered in the differential diagnoses of girls with day-time incontinence. The key to diagnosis is an appropriate and detailed history as it is common for parents or girls to ignore symptoms or fail to report them. Proper voiding instructions and behavioral therapy often resolve the problem.