PMC8140675_01
two-dimensional echocardiography showed the small residual PDA
PAMJ-38-219-g001.jpg
PMC8140675_01_PAMJ-38-219-g001.jpg
F1
However, 2-dimensional echo exam revealed a persistent small residual PDA, 3-4 mm in diameter, with left-to-right shunt (Figure 1).
final angiography post PDA closure with HeartR  device
PAMJ-38-219-g002.jpg
PMC8140675_01_PAMJ-38-219-g002.jpg
F2
Angiography from descending aorta (AoD) revealed type A PDA with 3.4 mm isthmus diameter and 17.31 mm ampulla size (Figure 2).