heart attack definition
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- a heart attack (myocardial infarction) is permanent damage to your heart muscle. it happens when a blocked artery leads to a lack of blood supply.
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Hypertension  (High Blood Pressure) About Heart Attack. A heart attack happens when the flow of oxygen-rich blood to a section of heart muscle suddenly becomes blocked and the heart can't get oxygen. If blood flow isn't restored quickly, the section of heart muscle begins to die.
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Medical Dictionary Heart: The muscle that pumps blood received from veins into arteries throughout the body. ... See the entire definition of Heart. Heart attack: The death of heart muscle due to the loss of blood supply. The loss of bloo... See the entire definition of Heart attack. Heart disease: Any disorder that affects the heart. Sometimes the term heart disease is ... See the entire definition of Heart disease. Heart muscle: A type of muscle with unique features only found in the heart. The heart mus... See the entire definition of Heart muscle
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heart attack heart attack - a sudden severe instance of abnormal heart function. attack - a sudden occurrence of an uncontrollable condition; an attack of diarrhea. coronary, coronary thrombosis - obstruction of blood flow in a coronary artery by a blood clot (thrombus) coronary failure, heart failure - inability of the heart to pump enough blood to sustain normal bodily functions.
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- The typical symptoms of a heart attack are similar to those of angina, but more severe and longer lasting. The victim feels a pain that is usually squeezing or burning or feels a terrible pressure in the middle of chest. This pain may also travel up to the neck, jaw, or shoulder or down the arm and into the back.
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Heart Attack Myocardial Infarction Introduction. Myocardial infarction is the technical name for a heart attack. A heart attack occurs when an artery leading to the heart becomes completely blocked and the heart doesn’t get enough blood or oxygen. Without oxygen, cells in that area of the heart die (called an infarct).A heart attack is a medical emergency. heart attack occurs when an artery leading to the heart becomes completely blocked and the heart doesn’t get enough blood or oxygen. Without oxygen, cells in that area of the heart die (called an infarct). A heart attack is a medical emergency.
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Infarction Heart Attack is the interruption of blood supply to a part of the heart, causing some heart cells to die. This is most commonly due to a blockage of a coronary artery. For more information, read this page.
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About Cardiac Arrest No. The term heart attack is often mistakenly used to describe cardiac arrest. While a heart attack may cause cardiac arrest and sudden death, the terms don't mean the same thing. Heart attacks are caused by a blockage that stops blood flow to the heart. A heart attack (or myocardial infarction) refers to death of heart muscle tissue due to the loss of blood supply, not necessarily resulting in the death of the heart attack victim.
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Cardiac arrest Cardiac arrest: Although used interchangeably by many people, the terms cardiac arrest and  heart attack  are not the same thing. Cardiac arrest is stoppage of the heart. A heart attack can result in cardiac arrest, but not all heart attacks do so (e.g. it may cause chest pain instead).
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Learn the Truth About Your Heart What exactly is a heart attack? Most heart attacks happen when a clot in the coronary artery blocks the supply of blood and oxygen to the heart. Often this leads to an irregular heartbeat - called an arrhythmia - that causes a severe decrease in the pumping function of the heart.
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- Broken heart syndrome is a condition in which extreme stress can lead to heart muscle failure. The failure is severe, but often short-term. Most people who experience broken heart syndrome think they may be having a heart attack, a more common medical emergency caused by a blocked coronary (heart) artery.
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Heart Disease What is Heart Disease. A heart attack (myocardial infarction) occurs when blood flow to a part of your heart is blocked for a long enough time that part of the heart muscle is damaged or dies. Heart disease is one of several cardiovascular diseases, which are diseases of the heart and blood vessel system.
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Heart Attack Heart attack (myocardial infarction (MI), is the leading cause of death among Americans. It often results from coronary artery disease, the most common form of heart disease to affect adults. See your doctor immediately if you feel pressure or a squeezing sensation in your chest, neck, jaw, shoulders, back or arms, especially if it’s accompanied by sweating, nausea, vomiting, or shortness of breath.
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- What exactly is a heart attack? Most heart attacks happen when a clot in the coronary artery blocks the supply of blood and oxygen to the heart. Often this leads to an irregular heartbeat-called an arrhythmia-that causes a severe decrease in the pumping function of the heart.
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Sudden Cardiac Arrest in the Young No. A heart attack is a condition in which the blood supply to the heart muscle is suddenly blocked, resulting in the death of the heart muscle. Heart attack victims usually (but not always) experience chest pain and usually remain conscious. Heart attacks are serious and sometimes will lead to SCA.
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Kevin Conrad A heart attack is also called a myocardial infarction (MI) or an acute myocardial infarction (AMI). Many heart attacks are caused by a complete blockage of a vessel in your heart, called a coronary artery. A blocked coronary artery prevents oxygen-rich blood and nutrients from reaching a section of the heart. If blood cannot reach the heart muscle, it will die.
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What Is Angina? Heart attacks most often occur as a result of coronary heart disease (CHD), also called coronary artery disease. CHD is a condition in which a waxy substance called plaque builds up inside the coronary arteries. These arteries supply oxygen-rich blood to your heart.
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- A heart attack occurs when the flow of blood to the heart is blocked, most often by a build-up of fat, cholesterol and other substances, which form a plaque in the arteries that feed the heart (coronary arteries). The interrupted blood flow can damage or destroy part of the heart muscle.
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Coronary Artery Bypass Grafting (CABG) A heart attack happens when the flow of oxygen-rich blood to a section of heart muscle suddenly becomes blocked and the heart can't get oxygen. If blood flow isn't restored quickly, the section of heart muscle begins to die.verview. Heart attacks most often occur as a result of coronary heart disease (CHD), also called coronary artery disease. CHD is a condition in which a waxy substance called plaque (plak) builds up inside the coronary arteries.
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Heart Attack Every 40 seconds, someone in the United States has a heart attack.1. A heart attack, also called a myocardial infarction, occurs when a part of the heart muscle doesn’t receive enough blood flow. The more time that passes without treatment to restore blood flow, the greater the damage to the heart muscle. Learn more about the signs and symptoms of a heart attack.
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The Voice of Business for Long Beach The most common form of heart disease is coronary artery disease, which can lead to heart attack, according to the CDC. Heart attack occurs when the heart muscle’s blood supply is cut off by a blood clot in one or more pulmonary veins or arteries.
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Understanding heart attacks As a large, muscular pump, the heart relies on a constant supply of oxygen-rich blood to function. Without a blood supply, heart muscle begins to die. This is exactly what happens during a heart attack. Myocardial infarction, the medical term for heart attack, literally means heart tissue damage or death.. Heart attacks most commonly occur when one or more of the coronary arteries — a network of blood vessels that supply blood to the heart — become blocked. Heart muscle becomes starved for oxygen and nutrients.
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Heart Attack or Sudden Cardiac Arrest: How Are They Different? People often use these terms interchangeably, but they are not synonyms. A heart attack is when blood flow to the heart is blocked, and sudden cardiac arrest is when the heart malfunctions and suddenly stops beating unexpectedly. A heart attack is a “circulation” problem and sudden cardiac arrest is an “electrical” problem.
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- damage to an area of heart muscle that is deprived of oxygen, usually due to blockage of a diseased coronary artery, typically accompanied by chest pain radiating down one or both arms, the severity of the attack varying with the extent and location of the damage; myocardial infarction. Compare coronary thrombosis.
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Heart Disease (Cardiovascular Disease, CVD) Definition of Heart attack. 1  Take the Heart Disease Quiz!  Heart attack: The death of heart muscle due to the loss of blood supply. The loss of blood supply is usually caused by a complete blockage of a coronary artery, one of the arteries that supplies blood to the heart muscle. Death of the heart muscle, in turn, causes chest pain and electrical instability of the heart muscle tissue.