Related Experiment Video
Updated: Jul 3, 2026
14:40
Instrumentation of Near-term Fetal Sheep for Multivariate Chronic Non-anesthetized Recordings
Published on: October 25, 2015
Biochemical composition of fluids for amnioinfusion during fetoscopy
P N Adama van Scheltema1, P S In't Anker, A Vereecken
1Fetal Diagnosis and Therapy Unit, Department of Obstetrics, Leiden University Medical Centre, Leiden, The Netherlands.
Gynecologic and Obstetric Investigation
|July 23, 2008
Summary
Lactated Ringer's solution is the most suitable choice for amnioinfusion during fetoscopy, closely matching amniotic fluid's electrolyte composition and pH. This finding aids in selecting optimal infusion fluids for fetal procedures.
Area of Science:
- Perinatology
- Biochemistry
- Medical Device Research
Background:
- Amnioinfusion is a procedure used during fetoscopy to improve visualization and manage amniotic fluid imbalances.
- Selecting an appropriate infusion solution that mimics amniotic fluid's biochemical properties is crucial for fetal safety and procedural success.
Purpose of the Study:
- To determine the optimal commercially available solution for amnioinfusion during fetoscopy.
- To compare the biochemical properties of various amnioinfusion solutions with native amniotic fluid.
Main Methods:
- Analysis of amniotic fluid samples from 10 pregnancies (uncomplicated and complicated).
- Biochemical analysis included electrolytes (sodium, potassium, chloride, bicarbonate, calcium), glucose, osmolality, pH, total protein, and albumin.
- Literature review to identify commercially available amnioinfusion solutions and comparison of their composition to amniotic fluid.
Main Results:
- Two electrolyte solutions are currently used for amnioinfusion, with four additional potential candidates identified.
- Most commercial infusion solutions exhibit significant differences in electrolyte composition and pH compared to mid-trimester amniotic fluid.
- pH differences were the most pronounced disparity observed between infusion solutions and amniotic fluid.
Conclusions:
- Lactated Ringer's solution demonstrates the closest resemblance to amniotic fluid in terms of both electrolyte composition and pH.
- Lactated Ringer's solution is recommended as the most suitable option for amnioinfusion during fetoscopy.
