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Related Experiment Videos

Bladder emptying in neonates.

J Osborne, G Du Mont, M Beecroft

    Archives of Disease in Childhood
    |November 1, 1977
    PubMed
    Summary
    This summary is machine-generated.

    This study used ultrasound to assess newborn bladder emptying, finding incomplete emptying in most males and some females. It suggests incomplete bladder emptying is not the primary cause of sex differences in neonatal urinary tract infections.

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    Area of Science:

    • Neonatal physiology
    • Pediatric urology
    • Diagnostic imaging

    Background:

    • Urinary tract infections (UTIs) are common in neonates.
    • The higher incidence of UTIs in female neonates is not fully understood.
    • Bladder emptying efficiency may play a role.

    Purpose of the Study:

    • To evaluate the completeness of bladder emptying in newborn infants using ultrasound.
    • To investigate the relationship between bladder emptying and sex in neonates.

    Main Methods:

    • Ultrasound scanning was employed to assess residual urine post-micturition.
    • A cohort of newborn infants was studied.

    Main Results:

    • Incomplete bladder emptying was observed in 9 male and 6 female neonates.

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  • One female neonate achieved complete bladder emptying.
  • Estimated residual urine volumes ranged from 3.9 to 13.9 ml in 11 subjects.

    • Conclusions:

    • Incomplete bladder emptying is common in neonates of both sexes.
    • This finding does not support incomplete bladder emptying as the main explanation for sex-based differences in neonatal UTI incidence.