What Is Heart Disease?
Heart disease refers to conditions that involve the heart, its vessels, muscles, valves, or internal electric pathways responsible for muscular contraction. Common heart disease conditions include:
- Coronary artery disease
- Heart failure
- Cardiomyopathy
- Heart valve disease
- Arrhythmias
Coronary artery disease is the main cause of heart attacks. It is the most common kind of heart disease in the U.S.
What Is a Heart Attack?
When a coronary artery becomes blocked (usually by a blood clot), an area of heart tissue loses its blood supply. This reduction of blood can quickly damage and/or kill heart tissue, so quick treatments in an emergency department and/or catheterization suite are necessary to reduce the loss of heart tissue. Loss of heart tissue due to a blockage can cause symptoms such as chest pain, shortness of breath, weakness, and even death. Quick treatments have reduced the number of deaths from heart attacks in recent years. About 790,000 people suffer from heart attacks in the U.S. each year.
Heart Attack Symptoms
The following are warning signs of a heart attack:
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