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Functional bladder capacity and urine osmolality in children with primary monosymptomatic nocturnal enuresis
- Source :
- Scandinavian journal of urology and nephrology. 39(1)
- Publication Year :
- 2005
-
Abstract
- To assess functional day-time bladder capacity (DBC) and urine osmolality in children with primary monosymptomatic nocturnal enuresis (PMNE) according to age and sex.A total of 263 children with PMNE were divided into two groups: Group I, 160 children (63 girls, 97 boys) aged 5-9 years (mean age 7.14+/-1.47 years); and Group II, 103 children (25 girls, 78 boys) aged 10-15 years (mean age 12.26+/-1.52 years). DBC (milliliters) was the largest void of the day measured over four 24-h periods, irrespective of the diet applied. Urine osmolality was determined three times: in the evening before bed-time; at night, 2-4 h after falling asleep; and in the morning in the nocturnal void.DBC was smaller in Group I than in Group II (151.27 vs 199.46 ml; p0.05). No statistically significant differences were found in relation to sex (p0.05). The mean osmolality of the nocturnal void in the morning was 854.15 and 909.22 mOsmol/kg H(2)O in Groups I and II, respectively (p0.05). Differences between boys and girls were not statistically significant (p0.05). No correlation was found between DBC and urine osmolality (p0.05). A detailed analysis of the results revealed DBC below the 5th percentile or above the 95th percentile in 23/263 cases (8.7%), reduced osmolality (800 mOsmol/kg H(2)O) in 76/263 (28.8%), a familial nature of nocturnal enuresis in 124/263 (47.1%) and difficulty waking in 86/263 (32.7%).In children with PMNE aged 5-15 years, functional DBC increases with age and does not differ between the sexes; the mean nocturnal urine osmolality is neither age- nor sex-dependent.
- Subjects :
- Male
medicine.medical_specialty
Evening
Urology
Urinary system
Urinary Bladder
Urinary incontinence
Urine
Sex Factors
Enuresis
medicine
Humans
Child
Morning
Urinary bladder
business.industry
Osmolar Concentration
Age Factors
medicine.anatomical_structure
Nephrology
Case-Control Studies
Child, Preschool
Urine osmolality
Female
medicine.symptom
business
Subjects
Details
- ISSN :
- 00365599
- Volume :
- 39
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- Scandinavian journal of urology and nephrology
- Accession number :
- edsair.doi.dedup.....a9ca7151b783512e521daf11d522dd74