2.2 Fetal and maternal parameters
The follow-up data of fetuses with d-TGA were retrospectively retrieved
from our hospital’s electronic data system. All fetuses diagnosed with
d-TGA were examined every two weeks until birth. During every
ultrasonographic examination, the estimated birth weight, fetal biometry
and amniotic fluid index were estimated, and umbilical artery Doppler
measurements were made. Maternal age, gestational age at birth, mode of
delivery, and birth weight were also recorded. Prenatal genetic testing
for aneuploidies and 22q11 microdeletion was offered to all families.