Diagnostic Accuracy of Estimated Fetal Weight Discordance in Predicting Birthweight Discordance in Monochorionic Twins: A Retrospective Cohort Study.

ABSTRACT:

Objective

To evaluate the diagnostic accuracy of sonographic estimated fetal weight discordance (EFWD) ≥ 20% in predicting birthweight discordance (BWD) ≥ 20% (i.e., selective fetal growth restriction [sFGR]) in monochorionic (MC) twin pregnancies.

Method

Retrospective cohort study including uncomplicated MC twin pairs (n = 213) and MC twins with sFGR (n = 134), with available ultrasound within 14 days of birth approximately 2002 and 2023 in our center. Within 14 and 7 days of birth, we calculated sensitivity and specificity. In a subgroup of twins with available ultrasound within 3 days of birth, the absolute error of BWD was calculated (BWD-EFWD).

Results

The sensitivity and specificity of EFWD ≥ 20% within 14 days of birth in predicting BWD ≥ 20% were 84% (95% CI 7

SUBMITTER: Spekman JA 

PROVIDER: S-EPMC12693006 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature