Document Detail

Voiding pattern in healthy children 0 to 3 years old: a longitudinal study.
MedLine Citation:
PMID:  11061923     Owner:  NLM     Status:  MEDLINE    
PURPOSE: We describe the development of voiding patterns and bladder control in healthy children during the first 3 years of life. MATERIALS AND METHODS: We determined voiding patterns, bladder capacity and post-void residual urine volume per 4 hours individually and noninvasively every 3 months in 36 female and 23 male healthy infants using the 4-hour voiding observation. RESULTS: Voiding frequency decreased slowly from 5 to 2 voiding episodes per 4 hours from ages 3 months to 3 years. We noted interrupted voiding in 33% of subjects at age 3 months but this condition was rare after age 2 years. Voiding during sleep occurred mainly during the first 7 months of life and did not continue after age 18 months. Bladder capacity increased from a median of 52 to 67, 68 and 123 ml. during years 1 to 3, respectively. As measured by post-void residual urine volume, bladder emptying was unchanged during years 1 and 2 but it decreased during year 3 (median 6 versus 0 and mean 4 versus 3 ml. per 4 hours). CONCLUSIONS: During the first 3 years of life the number of voiding episodes, including interrupted voiding, post-void residual urine and voiding during sleep, decreased while bladder capacity increased.
U B Jansson; M Hanson; E Hanson; A L Hellström; U Sillén
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of urology     Volume:  164     ISSN:  0022-5347     ISO Abbreviation:  J. Urol.     Publication Date:  2000 Dec 
Date Detail:
Created Date:  2000-11-27     Completed Date:  2001-01-11     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0376374     Medline TA:  J Urol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  2050-4     Citation Subset:  AIM; IM    
Urotherapeutic Unit, Queen Silvia Children's Hospital, Göteborg, Sweden.
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MeSH Terms
Child, Preschool
Longitudinal Studies
Reference Values
Urinary Bladder / physiology

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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