Bladder capacity (ounces) equals age (years) plus 2 predicts normal bladder capacity and aids in diagnosis of abnormal voiding patterns

R. M. Berger, Max Maizels, G. C. Moran, J. J. Conway, C. F. Firlit

Research output: Contribution to journalArticlepeer-review

110 Scopus citations

Abstract

Standardization of the bladder capacities of children will improve the precision of urodynamic evaluation. In an attempt to develop a practical guide to predict the normal bladder capacity during childhood the bladder capacities of 132 children without a clinically abnormal pattern of voiding were measured. When the bladder capacities are correlated by age the following linear relationship exists: normal bladder capacity (ounces) equals age (years) plus 2. The bladder capacities of 68 children with primary enuresis, frequency or infrequent voiding were then measured. Children with clinically infrequent voiding demonstrated large bladder capacities and those with frequency or enuresis demonstrated small bladder capacities compared to normal childen. The formula appears to be a useful guide to predict normal bladder capacity by age and also to aid in the diagnosis of abnormal voiding patterns.

Original languageEnglish (US)
Pages (from-to)347-349
Number of pages3
JournalUnknown Journal
Volume129
Issue number2
DOIs
StatePublished - Jan 1 1983

ASJC Scopus subject areas

  • Urology

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