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means that not enough blood is getting to a particular organ or body part. 

It is almost always due to a clogged artery blocking the flow of blood and the oxygen carried by red blood cells. 

The lack of blood flow results in oxygen deficiency of the muscle cells. Being starved of oxygen can cause them to malfunction and, if severe, can result in their death. 

Many people with ischemia in the arteries feeding the heart have symptoms. Angina, or chest pain, is a common symptom of ischemia. Some people will have pains in other areas such as the back or even in the teeth or jaw. 

What is not commonly known is that many people with ischemia have no symptoms at all. This has been termed silent ischemia.

Someone who has myocardial ischemia, that is, the heart not getting enough blood, is at very high risk of having a heart attack, whether they have symptoms or not. 

The more areas of the heart that are ischemic, the higher the risks of having a heart attack.

Ischemia is a very serious and dangerous medical problem.

 To assess your risk of having a heart attack, we can do tests to see if your heart is getting enough blood  (ischemia). These tests are  of tremendous  prognostic  value. If you have ischemia, the tests tell us how bad it is and how likely you are to have a heart attack.

A variety of diagnostic tests can be used to check for ischemia. Your healthcare professional will choose the test most appropriate for your age, sex, and condition.