At one time, little could be done for people with heart disorders, and for those who suffered from a heart attack. Today, improved medicines and new methods of treatment allow many cardiac (heart) patients to live normal or nearly normal lives. Also, new kinds of equipment and new methods of performing heart operations have saved the lives of many people for whom there was formerly no hope.
The arteries of older people may become hardened or narrowed. This may be serious if it happens in the coronary arteries, for the blood supply of the heart is cut down. Severe chest pain may result. A heart attack occurs if the heart muscle is deprived of its blood supply. The heart muscle may be permanently damaged and replaced with scar tissue. Most people who have heart attacks recover. They must rest for several weeks or more, but they can usually then lead normal lives.
A heart whose muscle has been badly damaged cannot do a good job of pumping the blood. This condition is called heart failure. With this condition, fluid collects in some parts of the body, such as the lungs and ankles.
Doctors have a large variety of medicines and other treatments for dealing with...
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