Coronary artery disease

Content provided by Healthwise

Coronary artery disease

Coronary artery disease is caused by the buildup of plaque on the inside of the coronary arteries, the blood vessels that supply oxygen-rich blood to the heart muscle. Plaque is made up of excess cholesterol, calcium, and other substances that float in blood and, over time, build up on the inside walls of the coronary arteries and other arteries.

This process of plaque buildup is called hardening of the arteries, or atherosclerosis. The plaque deposits decrease the space through which blood can flow. Poor blood flow can "starve" the heart muscle and lead to chest pain. A heart attack results when blood flow is completely blocked, usually by a blood clot forming over a plaque that has broken open (ruptured).

Coronary artery disease is treated with lifestyle changes, such as increasing exercise, eating a heart-healthy diet, and stopping smoking. Coronary artery disease also is treated with medications to help reduce high cholesterol, control high blood pressure, and manage other risk factors.

Credits

Print Email SHARE

Author	Robin Parks, MS
Editor	Kathleen M. Ariss, MS
Associate Editor	Pat Truman, MATC
Primary Medical Reviewer	Caroline S. Rhoads, MD - Internal Medicine
Specialist Medical Reviewer	Robert A. Kloner, MD, PhD - Cardiology
Specialist Medical Reviewer	Ruth Schneider, MPH, RD - Diet and Nutrition
Last Updated	May 29, 2008

Print Email Twitter Facebook MySpace AIM More

Last updated:	May 29, 2008
Author:	Robin Parks, MS
Reviewed By:	Caroline S. Rhoads, MD - Internal Medicine, Ruth Schneider, MPH, RD - Diet and Nutrition
Editors:	Kathleen M. Ariss, MS, Pat Truman, MATC

This information is not intended to replace the advice of a doctor. By using AOL Body, you indicate that you have read, understood, and agreed to our Terms of Service, and AOL Body Advertising Policy. Read more about our content partners.