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Fetal Circulation

Fetal Circulation

Fetal circulation is a unique system that facilitates the exchange of gases, nutrients, and waste products between the developing fetus and the mother. This intricate process takes place through a special organ called the placenta.
Two umbilical arteries transport blood from the fetus to the placenta. At the placenta, the blood absorbs oxygen and nutrients while simultaneously eliminating waste products. This oxygen-enriched and nutrient-rich blood then returns to the fetus through one...

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Related Experiment Video

Updated: Apr 15, 2026

Guide Wire Assisted Catheterization and Colored Dye Injection for Vascular Mapping of Monochorionic Twin Placentas

Guide Wire Assisted Catheterization and Colored Dye Injection for Vascular Mapping of Monochorionic Twin Placentas

Published on: September 5, 2011

Link Between Non-Invasive Intrapartum Interventions and Cardiotocography Patterns, Amniotic Fluid Color, and

Nuria Garcia-Cuadrado¹, Ana Fernandez-Araque^2,3, Zoraida Verde^3,4

¹Doctoral Program in Health Sciences, Faculty of Nursing, University of Valladolid, 47005 Valladolid, Spain.

Healthcare (Basel, Switzerland)

|April 14, 2026

Summary

Maternal repositioning, but not IV fluids, is linked to concerning fetal heart rate patterns (CTG) and improved Apgar scores. Meconium-stained fluid also correlates with abnormal CTG, highlighting repositioning

Keywords:

cardiotocography intrapartum management labor maternal repositioning neonatal outcomes

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Transcutaneous Microcirculatory Imaging in Preterm Neonates

Published on: December 31, 2015

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Last Updated: Apr 15, 2026

Guide Wire Assisted Catheterization and Colored Dye Injection for Vascular Mapping of Monochorionic Twin Placentas

Guide Wire Assisted Catheterization and Colored Dye Injection for Vascular Mapping of Monochorionic Twin Placentas

Published on: September 5, 2011

Accurate and Simple Evaluation of Vascular Anastomoses in Monochorionic Placenta using Colored Dye

Accurate and Simple Evaluation of Vascular Anastomoses in Monochorionic Placenta using Colored Dye

Published on: September 5, 2011

Transcutaneous Microcirculatory Imaging in Preterm Neonates

Transcutaneous Microcirculatory Imaging in Preterm Neonates

Published on: December 31, 2015

Area of Science:

Obstetrics and Gynecology
Fetal Monitoring
Neonatal Outcomes

Background:

Intrauterine resuscitation measures like maternal repositioning and IV fluid therapy are common for abnormal fetal heart rate patterns (CTG) during labor.
Limited evidence exists on their effectiveness concerning CTG abnormalities, amniotic fluid status, and neonatal outcomes.

Purpose of the Study:

To investigate the association between maternal repositioning, IV fluid therapy, and intrapartum CTG abnormalities.
To explore the relationship between these interventions, meconium-stained amniotic fluid, and immediate neonatal effects.

Main Methods:

A prospective, observational study involving continuous fetal monitoring during labor.
Analysis of maternal position changes, IV fluid administration, CTG patterns, amniotic fluid color, and neonatal outcomes.
Statistical evaluation of interventions, considering positions independently and combined.

Main Results:

Maternal repositioning (alone or combined) correlated with suspicious/pathological CTG and improved 5-minute Apgar scores.
IV fluid therapy showed no significant association with CTG patterns or neonatal outcomes.
Meconium-stained amniotic fluid was linked to a higher incidence of abnormal CTG.

Conclusions:

Maternal repositioning is often a clinical response to concerning CTG findings.
IV fluid therapy demonstrated no link to CTG abnormalities or adverse neonatal outcomes.
Integrated interpretation of CTG with clinical context and use of maternal repositioning are supported.