Cardiac catheterization and angiography can reveal vital information about overall cardiac function, about the function of the individual cardiac chambers, about the cardiac valves (whether they are too narrow (stenosis) or too leaky (regurgitation)), congenital heart defects, and about the location and severity of blockages in the coronary arteries (the arteries that supply blood to the heart muscle). What are some of the variations used with catheterization and angiography? Cardiac catheterization is often used therapeutically, that is, to deliver treatment for various heart problems. Therapeutic catheterizations include procedures to dilate stenotic heart valves, procedures to close atrial septal defects (i.e., a hole in the wall separating the left and right atria), and of course, procedures to relieve blockages in the coronary arteries (angioplasty and stent placement).
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