Heart palpitations are a feeling that your heart is beating too hard or too fast, skipping a beat, or fluttering. You may notice heart palpitations in your chest, throat, or neck.
Heart palpitations can be bothersome or frightening. They usually aren't serious or harmful, though, and often go away on their own. Most of the time, they're related to stress and anxiety or to consumption of stimulants such as caffeine, nicotine, or alcohol. Palpitations also often occur during pregnancy.
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Unstable angina is
chest pain or discomfort from lack of blood flow, but there is no damage to the heart muscle.
It often happens when you are at rest. You may have had
stable angina before. You knew when to expect your symptoms, such as when you exercised. Stable angina usually goes away
when you rest or take your angina medicine. But the symptoms of unstable angina may
not go away with rest or medicine. It may get worse or happen at times that it
didn't before. Unstable angina is not a heart attack. But it is a warning that
a heart attack could happen soon, so it needs to be treated right
A heart attack means a coronary artery
has been blocked and the heart has been damaged. Without blood flow and oxygen,
part of the heart starts to die.
Any type of acute coronary syndrome is very serious and
needs to be treated right away.
What causes acute coronary syndrome?
coronary syndrome happens because
plaque narrows or blocks the arteries that supply
blood to the heart. Plaque is made of
cholesterol and other things. Over time, plaque can
build up in the arteries. This is known as
coronary artery disease.
Plaque causes angina by narrowing the
arteries. A heart attack happens when a piece of plaque breaks open and a clot
forms, blocking an artery.
What are the symptoms?
Call 911 or other emergency services immediately if you have symptoms of acute coronary syndrome. These may include:
Chest pain or pressure, or a strange feeling in the chest.
After you call 911, the operator may tell you to chew 1 adult-strength or 2 to 4 low-dose aspirin. Wait for an ambulance. Do not try to drive yourself.
How is acute coronary syndrome diagnosed?
will give you a physical exam and ask about your symptoms and past health. He
or she also will ask about your family's health. You will have several tests to
find out what is causing your chest pain.
electrocardiogram can show whether you have angina or
have had a heart attack. This test measures the electrical signals that control
your heart's rhythm. Small pads will be taped to your chest and other areas of
your body. They connect to a machine that traces the signals onto paper. The
doctor will look for certain changes on the graph to see if your heart is not
getting enough blood or you are having a heart attack.