Fetal echocardiography: reference values for the Chinese population

Area of Science:

• Obstetrics and Gynecology
• Fetal Medicine
• Cardiology

Background:

• Fetal cardiac structure dimensions can vary with gestational age and ethnicity.
• Establishing normative data is crucial for accurate fetal assessment.
• Previous studies may not fully represent diverse fetal populations.

Purpose of the Study:

• To determine normal reference ranges for fetal cardiac dimensions.
• To cover gestational ages from 20 to 34 weeks.
• To provide data from a single center in China.

Main Methods:

• Prospective cross-sectional study of 4396 normal singleton pregnancies.
• Fetal echocardiograms analyzed for cardiac chamber and great vessel dimensions.
• Data stratified by gestational age and analyzed using regression models.

Main Results:

• Normal reference values for fetal cardiovascular dimensions were established.
• Cardiac structure measurements showed a consistent increase with advancing gestational age.
• Ratios of cardiac structure diameters were calculated to identify differential growth patterns.

Conclusions:

• The study provides essential reference values for fetal echocardiography in China.
• These data can guide the interpretation of fetal cardiac measurements.
• The findings support accurate monitoring of fetal development.