Heart attacks


Heart attacks

Acute coronary syndrome Myocardial infarction MI refers to tissue death infarction of the heart muscle myocardium. It is a type of acute coronary syndromewhich describes a sudden or short-term change in symptoms related to blood flow to the heart.

An MI is different from—but can cause— cardiac arrestwhere the heart is not contracting at all or so poorly that all vital organs cease to function, thus causing death. It is also distinct from heart failurein which the pumping Heart attacks of the heart is impaired.

However, an MI may lead to heart failure.

Heart attacks

Pain[ edit ] Chest pain is the most common symptom of acute myocardial infarction and is often described as a sensation of tightness, pressure, or squeezing. Pain radiates most often to the left arm, but may also radiate to the lower jaw, neck, right arm, back, and upper abdomen.

In people with diabetes, differences in pain thresholdautonomic neuropathyand psychological factors have been cited as possible explanations for the lack of symptoms.

Women can also commonly back or neck pain, indigestion, heartburn, lightheadedness, shortness of breath, fatigue, nausea, or pain in the back of the jaw. These symptoms are often overlooked or mistaken for another condition.

Eating polyunsaturated fat instead of saturated fats has been shown in studies to be associated with a decreased risk of myocardial infarction, [40] while other studies find little evidence that reducing dietary saturated fat or increasing polyunsaturated fat intake affects heart attack risk.

Calcium seen in coronary arteries can provide predictive information beyond that of classical risk factors.A heart attack occurs when an artery supplying your heart with blood and oxygen becomes blocked.

Fatty deposits build up over time, forming plaques in your heart's arteries. If a plaque ruptures, a blood clot can form and block your arteries, causing a heart attack. A heart attack is the death of a segment of heart muscle caused by a loss of blood supply. The blood is usually cut off when an artery supplying the heart muscle is blocked by a blood clot.

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During a heart attack, the blood supply that normally nourishes the heart with oxygen is cut off and the heart muscle begins to die. Heart attacks — also called myocardial infarctions — are.

Myocardial infarction (MI), commonly known as a heart attack, occurs when blood flow decreases or stops to a part of the heart, causing damage to the heart muscle. The most common symptom is chest pain or discomfort which may travel into the shoulder, arm, back, neck, or jaw.

A heart attack is a frightening experience. If you have experienced a heart attack, or are close with someone who has, you should know this: You are not alone. In fact, tens of thousands of people survive heart attacks and go on to lead productive, enjoyable lives.

Jun 11,  · Coronary Heart Disease. A heart attack happens if the flow of oxygen-rich blood to a section of heart muscle suddenly becomes blocked and the heart can't get oxygen.

Heart Attack Facts & Statistics | barnweddingvt.com The pain a person feels is normally constant, although it may sometimes come and go. Warning signs As heart attacks can be fatal, it is vital to recognize the warning signs that an attack is occurring.
Heart Attack | Myocardial Infarction | MedlinePlus High blood sugar due to insulin resistance or diabetes Some of these risk factors—such as obesity, high blood pressure, and high blood sugar—tend to occur together. When they do, it's called metabolic syndrome.
Heart Attack | National Heart, Lung, and Blood Institute (NHLBI) Patient Handouts Summary Each year almostAmericans have a heart attack. A heart attack happens when blood flow to the heart suddenly becomes blocked.
Start Here Lightheadedness or sudden dizziness Heart attack symptoms vary Not all people who have heart attacks have the same symptoms or have the same severity of symptoms.


Most heart attacks occur as a result of coronary heart disease (CHD). CHD is a condition in which a waxy substance called plaque builds up inside of the coronary arteries.

Heart attack - Symptoms and causes - Mayo Clinic