Abstract
Dextro-transposition of the great arteries (D-TGA) is the second most
common cyanotic congenital heart disease with variable coronary artery
anatomy. Outcomes have improved significantly with the advent of the
arterial switch procedure for this defect, with coronary artery anatomy
being a very important parameter for both short and long term outcomes
following surgical repair. Assessment of coronary artery anatomy is
usually undertaken in the postnatal period by transthoracic
echocardiography. Prenatal delineation will help with surgical planning,
parental counseling and tertiary care referral as needed due to the
critical importance of this variable in successful outcome. We describe
our experience with prenatal coronary artery assessment in a cohort of
patients with fetal diagnosis of D-TGA and highlight the importance of
its assessment with both 2-dimensional (2D) and Color Doppler imaging,
especially after 25 weeks gestation.