Answer: A stent is a medical device that supports tissue, but most commonly, the term refers to a specific medical device that is placed into an artery. An arterial stent is a metal, mesh-like tube that can expand once it is inserted into an artery. Its most frequent placement is in coronary arteries, which are typically blocked by plaque buildup. The stent helps to keep the artery open and allows for more normal blood flow to the heart.
LewisGale Regional Health System - February 02, 2015