Strategies for diagnosis of fetal right atrium dilation: based on fetal cardiac anatomy and hemodynamics.

ABSTRACT:

Background

Fetal right atrium (RA) dilation is frequently detected in routine screenings while it remains a challenge to clarify the reasons. This study aimed to analyze the cardiac anatomy and hemodynamics of fetal RA dilation and the changes of hemodynamic indexes.

Methods

In the retrospective study, 420 fetuses with RA dilation were included, which were classified into the physiological group (n = 202), volume overload group (n = 142), and the pressure overload group (n = 76). The ratio of right atrium to left atrium (RA/LA) were measured at four-chamber view. Peak velocity of tricuspid regurgitation (V_TR) was recorded in each case, if existed.

Results

The RA/LA ratio in the volume overload group is significantly higher than both the pressure overload gr

SUBMITTER: Wang Y 

PROVIDER: S-EPMC7339432 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature