The aorta, the largest artery in the body, is almost the diameter of a garden hose. Capillaries, on the other hand, are so small that it takes ten of them to equal the thickness of a human hair.

It is the biggest operation possible in a human being: the complete replacement of the body’s largest artery, the aorta, which supplies all the critical abdominal organs.

Pulmonary hypertension (PH) risk grows over time for patients with narrowing of the aorta, the body's biggest blood vessel, ...