Does the Porter formula hold its promise? A weight estimation formula for macrosomic fetuses put to the test.

ABSTRACT:

Purpose

Estimating fetal weight using ultrasound measurements is an essential task in obstetrics departments. Most of the commonly used weight estimation formulas underestimate fetal weight when the actual birthweight exceeds 4000 g. Porter et al. published a specially designed formula in an attempt to improve detection rates for such macrosomic infants. In this study, we question the usefulness of the Porter formula in clinical practice and draw attention to some critical issues concerning the derivation of specialized formulas of this type.

Methods

A retrospective cohort study was carried out, including 4654 singleton pregnancies with a birthweight ≥ 3500 g, with ultrasound examinations performed within 14 days before delivery. Fetal weight estimations derived using the Po

SUBMITTER: Weiss C 

PROVIDER: S-EPMC7028832 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature