To Örebro University

BACKGROUND: Constipation, daytime incontinence and nocturnal enuresis often overlap. Treatment of constipation has been shown to be an important aspect of therapy for children with daytime incontinence. However, the value of fecal disimpaction, as a part of constipation therapy, in children with enuresis has not been evaluated.

AIM: Our aim was to evaluate the antienuretic effect of fecal disimpaction in children with enuresis and concomitant constipation.

METHODS: The bladder and bowel function was assessed noninvasively in children aged six to ten years who sought help for enuresis for the first time. If they were constipated according to the Rome IV criteria or had a rectal diameter exceeding 30 mm, as assessed by ultrasound, they were given standard evacuation with mini-enemas and macrogol therapy for at least two weeks. Enuresis frequency was documented 14 nights preceding and following therapy.

RESULTS: In total, 66 children (20 girls, 46 boys) were evaluated, 23 (35%) of whom were constipated. There were no differences in age, sex or baseline bladder function between the two groups. The enuresis frequency per two weeks was 9.8 ± 4.1 nights before and 9.3 ± 5.1 nights after constipation therapy (p = 0.43).

DISCUSSION: This study found that fecal disimpaction in children with enuresis who are also constipated did not alleviate nocturnal enuresis. Bowel problems may still need to be addressed but the child should not be given the false hope that this approach alone will make them dry at night. It might be that evidenced based therapies, such as the enuresis alarm and desmopressin, could be less efficient in children with enuresis and constipation unless their bowel disturbance is first properly addressed.

CONCLUSIONS: Fecal disimpaction in children with enuresis and concomitant constipation will, by itself, not make the children dry at night.