*Definition:.
Angina is chest
pain or discomfort that occurs if an area of your heart muscle doesn't get
enough oxygen-rich blood.
Angina may feel
like pressure or squeezing in your chest. The pain also can occur in your
shoulders, arms, neck, jaw, or back. Angina pain may even feel like
indigestion.
Angina isn't a
disease; it's a symptom of an underlying heart problem. Angina usually is
a symptom of coronary heart disease (CHD).
a symptom of coronary heart disease (CHD).
Plaque Buildup in an Artery
*Types of Angina
1.
Stable Angina:
Stable angina
is the most common type of angina. It occurs when the heart is working harder
than usual. If
you have stable angina, you can learn its pattern and predict when the pain
will occur. The pain usually goes away a few minutes after you rest or take
your angina medicine.
Stable angina isn't a heart attack, but it suggests that a heart attack
is more likely to happen in the future.
2.
Unstable Angina: Unstable angina doesn't follow a pattern. It
may occur more often and be more severe than stable angina. Unstable angina
also can occur with or without physical exertion, and rest or medicine may not
relieve the pain. Unstable angina is
very dangerous and requires emergency treatment. This type of angina is a sign
that a heart attack may happen soon.
3.
Variant (Prinzmetal's) Angina: Variant angina is rare. A spasm in a coronary
artery causes this type of angina. Variant angina usually occurs while you're
at rest, and the pain can be severe. It usually happens between midnight and
early morning. Medicine can relieve this type of angina.
4.
Microvascular Angina: Microvascular
angina can be more severe and last longer than other types of angina. Medicine
may not relieve this type of angina.
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