Evaluation of maximum voided volume in Korean children by use of a 48‐h frequency volume chart

• Published in: BJU international Vol. 110; no. 4; pp. 597 - 600
• Main Authors: Kim, Sun‐Ouck, Kim, Kyung Do, Kim, Young Sig, Kim, Jun Mo, Moon, Du Geon, Park, Sungchan, Lee, Sang Don, Chung, Jae Min, Cho, Won Yeol
• Format: Journal Article
• Language: English
• Published: Oxford, UK Blackwell Publishing Ltd 01.08.2012; Wiley-Blackwell; Wiley Subscription Services, Inc
• Subjects: Adolescent; Age Factors; Asia; Asian Continental Ancestry Group - ethnology; Biological and medical sciences; bladder; Child; Child, Preschool; Circadian Rhythm; Female; Fundamental and applied biological sciences. Psychology; Humans; Male; Medical sciences; Nephrology. Urinary tract diseases; Reference Standards; reference value; Republic of Korea; Urinary Bladder - physiology; Urination - physiology; Urine; Urodynamics - physiology; Vertebrates: urinary system; Asia; Korea; Republic of Korea; Human; Evaluation; Reference value; Nephrology; Linear regression; Urology; Urinary system; Micturition; Urinary bladder; Volume; Asia; bladder; Child
• ISSN: 1464-4096; 1464-410X
• DOI: 10.1111/j.1464-410X.2011.10799.x

Study Type – Diagnostic (validating cohort) Level of Evidence 2a What's known on the subject? and What does the study add? The relationship between the maximum voided volume followed a linear curve. The formula presented, bladder capacity (mL) = 12 ×[age (years) + 11], is thought to be a reasonable one for Korean children. Korean children have a smaller bladder capacity than that reported in previous Western studies. OBJECTIVE •  To develop practical guidelines for the prediction of normal bladder capacity in Korean children measured by a frequency volume chart (FVC), maximum voided volume (MVV) is an important factor in the diagnosis of children with abnormal voiding function. SUBJECTS AND METHODS •  In all, 298 children, aged 3–13 years, with no history of voiding disorders volunteered for the study. The MVV was determined in 219 subjects by use of a completely recorded FVC. RESULTS •  Linear regression analysis was used to define the exact relationship between age and bladder capacity. An approximate formula related age to bladder capacity as follows: bladder capacity (mL) = 12 ×[age (years) + 11]. CONCLUSIONS •  The relationship between the MVV measured by a FVC by age (3–13 years) of Korean children followed a linear curve. •  When applied to normal voiding patterns, the formula presented appears to be a reasonable one for Korean children.