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Updated: Jul 19, 2026

High Frequency Ultrasound for the Analysis of Fetal and Placental Development In Vivo
Published on: November 8, 2018
Lymphodynamics in the fetus and newborn
C Bellini1, F Boccardo, E Bonioli
1Servizio di Patologia Neonatale, Dipartimento di Pediatria, Università di Genova, Istituto G. Gaslini, Genova, Italy. carlobellini@ospedale-gaslini.ge.it
Fetal and newborn fluid distribution differs from adults, with amniotic fluid extending extracellular space. This review examines volume regulation and fluid shifts, highlighting the lymphatic system
Area of Science:
- Physiology
- Developmental Biology
- Neonatal Medicine
Background:
- Body fluid distribution involves plasma, interstitial, and intracellular compartments.
- Fluid distribution patterns vary significantly between fetuses/newborns and adults.
- Amniotic fluid is integral to fetal extracellular space.
Purpose of the Study:
- To review mechanisms regulating fetal and newborn fluid volume.
- To discuss fluid distribution between plasma and interstitial spaces in neonates.
- To emphasize the lymphatic system's role in fluid balance.
Main Methods:
- Literature review of physiological studies.
- Analysis of fluid dynamics in fetal and neonatal models.
- Examination of lymphatic system function in perinatal development.
Main Results:
- Significant differences exist in fluid compartment volumes and regulation from fetus to adult.
- The lymphatic system is crucial for maintaining plasma-interstitial fluid balance.
- Amniotic fluid plays a unique role in fetal fluid homeostasis.
Conclusions:
- Fetal and neonatal fluid regulation is complex and distinct from adults.
- The lymphatic system is a key mediator of fluid distribution in perinatal life.
- Understanding these mechanisms is vital for neonatal care and research.
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