Göteborgs universitet, Institutionen för omvårdnad, Institutionen för kvinnors och barns hälsa, Avdelningen för pediatrik, Gothenburg University, Institute of Nursing, Institute for the Health of Women and Children, Dept of Paediatrics
Sillén, Ulla, 1946- (författare)
Göteborgs universitet, Institutionen för kvinnors och barns hälsa, Avdelningen för pediatrik, Gothenburg University, Institute for the Health of Women and Children, Dept of Paediatrics
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.
MEDICIN OCH HÄLSOVETENSKAP -- Hälsovetenskaper -- Omvårdnad (hsv//swe)
MEDICAL AND HEALTH SCIENCES -- Health Sciences -- Nursing (hsv//eng)
SAMHÄLLSVETENSKAP -- Annan samhällsvetenskap -- Övrig annan samhällsvetenskap (hsv//swe)
SOCIAL SCIENCES -- Other Social Sciences -- Other Social Sciences not elsewhere specified (hsv//eng)