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Constipation in children with isolated overactive bladders
Maria Luiza Veiga1, Patrícia Lordêlo, Tiago Farias
1CEDIMI, (Center for Childhood Urinary Disorders), Department of Urology and Physiotherapy, Bahiana School of Medicine, Bahia, Brazil.
Insights
Children with isolated overactive bladder (IOAB) are significantly more likely to experience constipation than their peers without urinary symptoms. This study highlights a key link between bladder dysfunction and bowel issues in pediatric patients.
Area of Science:
- Pediatric Urology
- Pediatric Gastroenterology
- Child Health
Background:
- Overactive bladder (OAB) is a common condition in children.
- Constipation is a frequent comorbidity in pediatric urology patients.
- The relationship between isolated overactive bladder (IOAB) and constipation requires further investigation.
Purpose of the Study:
- To determine the prevalence of constipation in children diagnosed with isolated overactive bladder (IOAB).
- To compare constipation rates in children with IOAB versus a control group without urinary complaints.
Main Methods:
- A cross-sectional study involving 51 children with IOAB and 74 controls aged 4-14 years.
- Constipation was assessed using the Rome III criteria via questionnaires.
- IOAB was defined by urgency, frequency, or daytime incontinence without post-void residual urine.
Main Results:
- Children with IOAB exhibited a significantly higher prevalence of constipation (54.9%) compared to controls (29.7%).
- Specific Rome III criteria for constipation, including stool retention and hard stools, were more common in the IOAB group.
- Constipation was more prevalent in males within the IOAB cohort.
Conclusions:
- Children with IOAB have a substantially increased risk of constipation compared to children without urinary symptoms.
- This study underscores the importance of evaluating bowel function in pediatric patients with IOAB.
- Early identification and management of constipation may be crucial for children with IOAB.
Objective:
To evaluate the prevalence of constipation in children with isolated overactive bladder (IOAB) and no micturition complaints.
Materials And Methods:
A questionnaire was used to evaluate constipation in 51 children with IOAB, as well as in a control group of 74 children between the ages of 4 and 14 years. The Rome III criteria for children were used to assess constipation. IOAB was defined as the presence of symptoms such as urgency with or without daytime incontinence or frequency, a bell-shaped uroflow, and no post-residual urine.
Results:
Mean patient ages were 7.94 (±2.8) and 8.28 (±3.4) years in the OAB and control group, respectively (p = 0.54). Twenty-eight (54.9%) of the OAB group were girls, and 34 (45.9%) were girls in the control group (p = 0.32). More of the children with IOAB had constipation than those without urinary symptoms (54.9% vs. 29.7%, p = 0.005; or 2.87, 95% CI: 1.3-6.0). The results were statistically significant regarding the following Rome III criteria: "history of stool retention", "presence of painful or hard bowel movements", "the presence of a large fecal mass in the rectum" and "large diameter stools which may obstruct the toilet". Within the group with OAB, constipation was more common among males (p = 0.05). There was no association between the type of OAB symptoms and constipation. The average dysfunctional voiding symptom score was 9.76 (±4.1). Eleven children (21.6%) presented alterations on ultrasound. Girls with OAB presented more frequently with UTI than boys (18 vs. 10, p = 0.13).
Conclusion:
This was the first comparative study with respect to constipation in children with IOAB and without urinary symptoms. Children with IOAB have a greater risk of having constipation compared to those with no urinary symptoms.
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