Longitudinal Assessment of Abdominal Circumference versus Estimated Fetal Weight in the Detection of Late Fetal Growth Restriction.

Objectives: To perform a longitudinal assessment comparison between estimated fetal weight (EFW) and abdominal circumference (AC) in the prediction of late fetal growth restriction (FGR) as opposed to small for gestational age (SGA).

Patients And Methods: A cohort of unselected singleton pregnancies scanned at 32±2 and 37±1 weeks was created. Longitudinal growth assessment by calculating the conditional AC and conditional EFW was performed, and both parameters were compared for their prediction capacity for late FGR and SGA.

Second- to Third-Trimester Longitudinal Growth Assessment for the Prediction of Largeness for Gestational Age and Macrosomia in an Unselected Population.

Background: Prenatal detection of excessive growth remains inaccurate. Most strategies rely on a single cross-sectional evaluation of fetal size during the third trimester.

Objectives: To compare second- to third-trimester longitudinal growth assessment with cross-sectional evaluation at the third trimester in the prediction of largeness for gestational age (LGA) and macrosomia.

Third-Trimester Conditional Reference Values for Longitudinal Fetal Growth Assessment.

Objectives: The aim of this study was to derive longitudinal reference values of fetal growth (estimated fetal weight [EFW] and abdominal circumference [AC]) during the third trimester and to develop coefficients for conditional growth assessment.

Patients And Methods: A prospective cohort study was conducted involving consecutive singleton pregnancies in a low-risk population for a routine third-trimester scan at 30+0-34+6 weeks and follow-up at 37+0-38+6 weeks for an additional ultrasound. Statistical analysis was based on multilevel modeling using MLwiN software.