Table 1 Fetal echocardiogram classification characteristics for postnatal coarctation concern.
Mild Concern Characteristics | Moderate Concern Characteristics | High Concern Characteristics | |
|---|---|---|---|
Tapering of the aortic arch | + | + | + |
Increased distance between 2nd and 3rd cranial branch | + | + | + |
Aortic isthmus Z score | >-2 | -2 to -3 | < –3 |
Aortic valve Z score | >-2 | -2 to -3 | < –3 |
Transverse Arch Hypoplasia | – | +/- | + |
Posterior Shelf | – | – | + |
Arch Doppler Flow | Normal systolic forward flow | Diastolic flow persistence | Diastolic flow persistence or retrograde flow |
RV to LV size discrepancy | +/– | + | + |
