The relationship between desmopressin treatment and voiding pattern in children

Area of Science:

• Pediatric Nephrology
• Urology
• Clinical Pharmacology

Background:

• Monosymptomatic nocturnal enuresis affects many children, impacting quality of life.
• Understanding voiding patterns and bladder capacity is crucial for effective treatment.
• Desmopressin is a common treatment for nocturnal enuresis, primarily acting on urine production.

Purpose of the Study:

• To evaluate the effect of short-term desmopressin treatment on voiding patterns.
• To assess changes in functional and mean bladder capacity during desmopressin therapy.
• To correlate bladder capacity with treatment response in children with nocturnal enuresis.

Main Methods:

• A study involving 120 children (6-16 years) with monosymptomatic nocturnal enuresis.
• Baseline and desmopressin treatment periods of 2 weeks each, with home monitoring of fluid intake and diuresis.
• Detailed recording of voiding times and volumes, with calculation of functional bladder capacity, mean bladder capacity, and 24-hour diuresis.

Main Results:

• Desmopressin significantly reduced mean 24-hour urine production.
• Functional and mean bladder capacities remained unaffected by desmopressin treatment.
• Non-responders had smaller bladder capacities than responders; most children had age-inadequate functional bladder capacity.

Conclusions:

• Short-term desmopressin effectively reduces 24-hour urine production in enuretic children.
• Desmopressin does not alter functional or mean bladder capacity.
• Reduced functional bladder capacity is common in children with nocturnal enuresis, irrespective of desmopressin response.