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[FETAL WEIGHT CHARTS IN THE ISRAELI POPULATION]
Etty Daniel-Spiegel1,2, Micha Mandel3, Simcha Yagel4,5
1Ultrasound Unit, Department of Obstetrics and Gynecology, Emek Medical Center, Afula, Israel.
Harefuah
|February 28, 2018
Summary
New sonographic fetal weight charts tailored for the Israeli population were developed using Hadlock and Souka formulas. These charts improve accuracy in assessing fetal growth and are recommended for perinatal care professionals in Israel.
Area of Science:
- Obstetrics and Gynecology
- Fetal Medicine
- Diagnostic Ultrasound
Background:
- Sonographic estimated fetal weight (EFW) relies on fetal biometry and formulas, crucial for pregnancy monitoring.
- Existing reference charts ideally should reflect specific population data for accuracy.
- Population-specific charts enhance the reliability of EFW assessments in clinical practice.
Purpose of the Study:
- To develop and validate sonographic-based intrauterine fetal weight curves specific to the Israeli population.
- To provide accurate reference charts for fetal weight estimation in Israeli pregnancies.
Main Methods:
- Utilized over 70,000 ultrasound examinations from Israel.
- Applied Hadlock's formula for pregnancies under 30 weeks and Souka's formula from 31 to 42 weeks.
- Validated charts by comparing sonographic EFW with actual birth weights in 6389 women.
Main Results:
- Constructed sonographic fetal weight charts for the Israeli population.
- Both Hadlock and Souka formulas demonstrated efficiency.
- A combination of Hadlock (≤30 weeks) and Souka (>30 weeks) showed enhanced accuracy.
Conclusions:
- Presented Israeli-specific fetal weight charts based on established formulas and local biometric data.
- Recommended these charts as a universal reference for perinatal care providers in Israel.
- Sonographic biometric curves more reliably represent physiological fetal growth compared to birthweight curves.
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