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    Coronary artery disease
   

The coronary arteries supply blood to the heart muscle itself. Damage to or blockage of a coronary artery can result in injury to the heart. Normally, blood flows through a coronary artery unimpeded. However, a process called atherosclerosis can cause a buildup of cholesterol and cells and other substances in the wall of the artery forming a plaque. If this process restricts blood flow enough it may result in a lack of oxygen to the heart muscle and cause angina. If the inner wall of a coronary artery becomes damaged, the inner contents of plaque can be exposed to the bloodstream and the body can bring substances such as platelets to the injured site and cause a further narrowing or complete blockage.

If blood flow is reduced severely or completely, death of part of the heart muscle that the artery supplies can occur. This is called a heart attack.


Review Date: 12/9/2012
Reviewed By: Glenn Gandelman, MD, MPH, FACC Assistant Clinical Professor of Medicine at New York Medical College; Private Practice specializing in Cardiovascular Disease in Greenwich, CT. Review provided by VeriMed Healthcare Network.
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
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