Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Gall bladder contractility in preterm infants

L Lehtonen1, E Svedström, P Kero

  • 1Department of Paediatrics, Turku University Hospital, Finland.

Archives of Disease in Childhood
|January 1, 1993
PubMed
Summary

Preterm infants

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Viral acute respiratory infections in neonatal intensive care healthcare workers: a nine-month point-prevalence cohort study.

The Journal of hospital infection·2025
Same author

Radiation safety of dentomaxillofacial radiology in Finland: Reported abnormal irradiation-related incidents during 2012-2022.

Radiography (London, England : 1995)·2024
Same author

Aerosol generation during coughing: an observational study.

The Journal of laryngology and otology·2022
Same author

Dynamic nuclear polarization and ESR hole burning in As doped silicon.

Physical chemistry chemical physics : PCCP·2020
Same author

Patient injuries in operative rhinology during a ten-year period: Review of national patient insurance charts.

Clinical otolaryngology : official journal of ENT-UK ; official journal of Netherlands Society for Oto-Rhino-Laryngology & Cervico-Facial Surgery·2017
Same author

Perinatal health services organization for preterm births: a multinational comparison.

Journal of perinatology : official journal of the California Perinatal Association·2017

Area of Science:

  • Neonatal physiology
  • Gastroenterology
  • Pediatric ultrasonography

Background:

  • Gallbladder function in preterm infants is not well understood.
  • Feeding stimulates gallbladder contraction, but the response may be delayed in premature neonates.

Purpose of the Study:

  • To investigate the postnatal gallbladder response to feeding in preterm infants.
  • To determine the gestational age and feeding volume at which gallbladder contraction occurs.

Main Methods:

  • Ultrasonography was used to measure gallbladder surface area before and after feeding.
  • A contraction index was calculated based on the percentage decrease in surface area.
  • Infants were studied based on gestational age and postconceptional age.

Main Results:

  • Infants >33 weeks gestation showed significant gallbladder contraction (index ≥50%).
  • Very preterm infants (27-32 weeks gestation) had minimal or no contraction.
  • Gallbladder contraction improved with increasing postconceptional age, typically by 29-32 weeks.

Conclusions:

  • Gallbladder function matures postnatally in preterm infants.
  • Gestational age at birth and feeding volume influence gallbladder response.
  • Delayed gallbladder contraction may occur in very preterm infants and those with feeding issues.

Related Experiment Videos