What is significant coarctation of aorta?
What is significant coarctation of aorta?
What is significant coarctation of aorta?
What is significant coarctation of aorta?
At cardiac catheterization, a peak- to- peak gradient across the coarctation site ≥ —————– in the absence of well- developed collateral circulation is considered significant.
[A] 10 mm Hg
[B] 20 mm Hg
[C] 30 mm Hg
[D] 40 mm Hg
When catheterization is performed, elevations of left ventricular and ascending aortic peak systolic pressures with a peak-to-peak systolic pressure gradient across the coarcted segment are usually found. A peak-to-peak gradient in excess of 20 mm Hg is generally considered indicative of significant obstruction.
