Accuracy of sonographic chorionicity classification in twin gestations.

ABSTRACT:

Objectives

To evaluate the accuracy of sonographic classification of chorionicity in a large cohort of twins and investigate which factors may be associated with sonographic accuracy.

Methods

We conducted a secondary analysis of a randomized trial of preterm birth prevention in twins. Sonographic classification of chorionicity was compared with pathologic examination of the placenta. Maternal (age, body mass index, diabetes, and hypertension), obstetric (prior cesarean delivery, gestational age at the first sonographic examination, and antepartum bleeding), and sonographic (oligohydramnios, polyhydramnios, and twin-twin transfusion syndrome) factors were assessed for their possible association with accuracy.

Results

A total of 545 twin sets in which chorionicity was c

SUBMITTER: Blumenfeld YJ 

PROVIDER: S-EPMC4246197 | biostudies-literature | 2014 Dec

REPOSITORIES: biostudies-literature