The mesenteric arteries supply blood to the large and small intestines. When one or more of the mesenteric arteries narrow or become blocked, blood flow is restricted and the intestines fail to get enough oxygen. This is called ischemia - an inadequate blood supply (circulation) to an organ due to blockage of blood vessels in the area. Symptoms can include severe abdominal pain. If the blockage worsens, tissues in the intestine may start to die due to lack of blood flow.
In this procedure, sometimes performed at the time of the angiogram, the vascular surgeon inflates a small balloon inside a narrowed mesenteric artery. After widening the artery with angioplasty,the surgeon may insert a stent, a tiny metallic mesh tube that supports the artery's walls and keeps the blood vessels open.