Mesenteric arteries are the blood vessels that supply blood to the intestines, particularly the superior mesenteric artery (SMA). In rare cases, there can be a severe blockage in the SMA that lead to significant pain and weight loss. If indicated, this can be fixed by inserting a stent to open up the blockage. This procedure is also done through catheters introduced into the arteries of the leg or the arm to access the mesenteric arteries.