Coronary Heart Disease/Coronary Artery Disease

What is coronary heart disease?

Heart disease, often referred to as coronary artery disease (CAD) or coronary heart disease (CHD), involves buildup of plaque, a wax-like substance, in the walls of the arteries. The arteries are blood vessels that help pump oxygen-rich blood away from the heart and throughout the body. When plaque builds up, it causes "narrowing" of the arteries, making it difficult for blood to flow freely. Plaque can also cause "hardening" of the arteries, which refers to hardened plaque along the arterial walls. Hardened plaque can break off and also cause blockage of blood flow. If plaque ruptures, the ruptured area can form a blood clot, which can potentially break loose and cause a blockage. If any of these things happen, it can lead to heart attack, heart failure, or arrhythmia. If a blood vessel to the brain is blocked, it can cause stroke.

Plaque buildup and thickening or hardening of the arteries takes many years to develop. People most at risk are people with high LDL ("bad") cholesterol and low HDL ("good") cholesterol as well as people with high blood pressure and diabetes. Women who had high-risk pregnancies or who are postmenopausal are also at greater risk for heart disease.

Symptoms of coronary heart disease

As the condition worsens, you may experience symptoms of angina or chest pain, such as:

• Aching in the chest
• Burning sensation in the chest
• A heavy feeling in the chest
• Numbness
• Squeezing in the chest

Some people feel sensations in other parts of the body like the shoulder, neck or back. Women often have unique symptoms of nausea, fatigue, or shortness of breath.