Initial assessment of the location and degree of stenosis | |
Better visualization of the aorta in patients with repaired CoA |
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Hemodynamic measurements - flow deceleration in descending aorta, pressure gradients Assessment of the smallest aortic cross-sectional area |
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Measurement of peak systolic pressure across CoA, wall-shear stress, and oscillatory shear index using computational fluid dynamics |
I C | Repair of CoA or re-coarctation (either surgical or interventional) is indicated in hypertensive patients with an increased non-invasive gradient between upper and lower limbs confirmed invasively (peak-to-peak ≥20 mmHg). |
IIa C | Stenting should be considered in hypertensive patients with >50% narrowing relative to the aortic diameter at the level of the diaphragm even if invasive peak-to-peak gradient is <20 mmHg. |
IIa C | Stenting should be considered in normotensive patients with an increased non-invasive gradient confirmed invasively (peak-to-peak gradient of ≥20 mmHg). |
IIb C | Stenting may be considered in normotensive patients with >50% narrowing relative to the aortic diameter at the level of the diaphragm even if invasive peak-to-peak gradient is <20 mmHg. |