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What is a heart blockage?

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Quick Answer

A heart blockage is a heart disease characterized by narrowing of the coronary arteries and is usually caused by a condition known as atherosclerosis. This condition is medically referred to as coronary heart disease. It is the common heart disease in the United States with more than 13 million people affected, as stated by WebMD.

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Full Answer

The blockage is usually caused by the accumulation of plaque, which makes the arteries firm and narrow preventing blood circulation to the heart. In the long run, the heart becomes undernourished due to lack of oxygen and other essential nutrients. The plaque usually starts depositing on the walls of the arteries while a patient is at a younger age. In time, it builds up thus elevating the risk of suffering from heart attack and heart disease. After the blockage occurs, new blood vessels usually erupt, but may not have the capability to supply enough oxygen to the heart.

The common symptom of a heart blockage is chest pain, or angina, as stated by Cleveland Clinic. It is usually experienced in the chest, but can also occur in the back, neck, left shoulder, jaw and the arms. Other symptoms include sweating, shortness of breath, increased heartbeat, extreme fatigue, palpitations, nausea and dizziness.

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