Description

Coronary artery bypass grafting (CABG) is a type of surgery that improves blood flow to the heart. It's used for people who have severe coronary heart disease (CHD), also called coronary artery disease. CHD is a condition in which a substance called plaque (plak) builds up inside the coronary arteries. These arteries supply oxygen-rich blood to your heart. Plaque is made up of fat, cholesterol, calcium, and other substances found in the blood. Plaque can narrow or block the coronary arteries and reduce blood flow to the heart muscle. If the blockage is severe, angina (an-JI-nuh or AN-juh-nuh), shortness of breath, and, in some cases, heart attack can occur. (Angina is chest pain or discomfort.

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