Coronary angioplasty: Blockage in a coronary artery

Blockage in a coronary artery

Illustration of a blockage in a coronary artery
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Coronary arteries are the blood vessels that supply oxygen-rich blood to the heart muscle. The coronary arteries can get blocked by the buildup of plaque. Plaque is made up of extra cholesterol, calcium, and other substances that float in blood. Over time, plaque can build up on the inside walls of the coronary arteries and block the blood flow. A procedure called angioplasty can open up a blocked artery.

Last Updated: May 29, 2008

Medical Review: Caroline S. Rhoads, MD - Internal Medicine & Robert A. Kloner, MD, PhD - Cardiology & Ruth Schneider, MPH, RD - Diet and Nutrition

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