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What is unstable angina?

ANSWER

This type of angina is considered an acute coronary syndrome. It may be a new symptom or a change from stable angina. It may come more often, occur at rest, or feel more severe. Although this angina can be relieved with oral medications, it is unstable and may progress to a heart attack. Usually medical treatment or a procedure is required to address it.

SOURCES:

American Heart Association: "Heart Failure."

Heart Failure Society of America.

Texas Heart Institute.

National Heart Lung and Blood Institute.

Reviewed by Suzanne R. Steinbaum on October 29, 2017

SOURCES:

American Heart Association: "Heart Failure."

Heart Failure Society of America.

Texas Heart Institute.

National Heart Lung and Blood Institute.

Reviewed by Suzanne R. Steinbaum on October 29, 2017

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What are heart valves?

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