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Correlation between fetal gastric size and amniotic fluid volume
Avi Ben-Haroush1, Yariv Yogev, Yoav Peled
1Perinatal Division and WHO Collaborating Center for Perinatal Care, Department of Obstetrics and Gynecology, Rabin Medical Center, Beilinson Campus, Petah Tiqwa, 49100, Israel.
Journal of Clinical Ultrasound : JCU
|March 10, 2005
Summary
Fetal gastric volume does not significantly impact amniotic fluid volume in normal pregnancies. This study found only a weak correlation, suggesting gastric measurements are more useful for detecting digestive tract anomalies.
Area of Science:
- Maternal-fetal medicine
- Prenatal diagnostics
- Fetal development
Background:
- Abnormal fetal digestive tract conditions can influence amniotic fluid volume.
- Fetal gastric volume is a potential indicator of digestive system health.
Purpose of the Study:
- To investigate the correlation between amniotic fluid volume and fetal gastric volume in uncomplicated pregnancies.
- To determine if fetal gastric volume is a significant predictor of amniotic fluid volume.
Main Methods:
- Prospective sonographic measurements of fetal gastric size in 280 normal singleton pregnancies (16-42 weeks gestation).
- Calculation of fetal gastric volume using a prolate ellipsoid formula.
- Assessment of amniotic fluid volume via the amniotic fluid index (AFI).
Main Results:
- Both fetal gastric volume and AFI showed significant correlation with gestational age.
- A weak correlation (R2=0.036) was observed between fetal gastric volume and AFI.
- Fetal gastric volume was not an independent predictor of AFI after adjusting for gestational age and other fetal biometrics.
Conclusions:
- Sonographic fetal gastric volume assessment is valuable for identifying fetal digestive tract anomalies.
- Fetal gastric volume does not exert a clinically significant influence on amniotic fluid volume in normal pregnancies.