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Mesenteric artery ischemia and infarction

Mesenteric artery ischemia and infarction

Mesenteric artery ischemia and infarction occurs when there is a narrowing or blockage of one or more branches of the major arteries that supply the small and large intestines, called the mesenteric arteries. Narrowing of the arteries occurs when fat, cholesterol, and other substances build up in the walls of arteries (atherosclerosis). This narrowing reduces the blood flow and oxygen supply to a segment of the intestine, causing damage (ischemia). A complete blockage may also occur when a blood clot obstructs all blood flow through the artery, causing tissue death of that segment of intestine (infarction).

 
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Review Date: 2/7/2022

Reviewed By: Michael M. Phillips, MD, Emeritus Professor of Medicine, The George Washington University School of Medicine, Washington, DC. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

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