Myocardial infarction (MI) refers to tissue death (infarction) of the heart muscle (myocardium) caused by ischemia, the lack of oxygen delivery to myocardial tissue. It is a type of acute coronary syndrome, which describes a sudden or short-term change …

2023年10月9日 · During a heart attack, a lack of blood flow causes the tissue in the heart muscle to die. A heart attack is also called a myocardial infarction. Prompt treatment is needed for a heart attack to prevent death. Call 911 or emergency medical help if you think you might be having a heart attack. Symptoms of a heart attack vary.

A heart attack (myocardial infarction) is a medical emergency where your heart muscle begins to die because it isn’t getting enough blood flow. A blockage in the arteries that supply blood to your heart usually causes this.

2024年12月10日 · What is a Heart Attack? A heart attack occurs when blood flow to the heart muscle is reduced or blocked. The amount of damage and recovery time depends on the area …

2023年8月8日 · Myocardial infarction (MI), colloquially known as “heart attack,” is caused by decreased or complete cessation of blood flow to a portion of the myocardium. Myocardial infarction may be “silent” and go undetected, or it could be a catastrophic event leading to hemodynamic deterioration and sudden death. [1]

2024年10月24日 · Coronary artery disease (CAD) is the main cause of heart attack. A heart attack, also called a myocardial infarction, happens when a part of the heart muscle doesn't get enough blood. The more time that passes without treatment to restore blood flow, the greater the damage to the heart muscle.

2023年9月21日 · What Is a Heart Attack? A heart attack happens when something blocks the blood flow to your heart so it can’t get the oxygen it needs. It’s a medical emergency. Call 911 right away at the first...

2023年1月20日 · What Is It? A heart attack occurs when one of the heart's coronary arteries is blocked suddenly or has extremely slow blood flow. A heart attack also is called a myocardial infarction. The usual cause of sudden blockage in a coronary artery …

2021年11月3日 · Acute myocardial infarction, also known as a heart attack, occurs when blood flow to the heart muscle is abruptly cut off, causing tissue damage. This is usually the...

2025年3月20日 · Each year almost 800,000 Americans have a heart attack. A heart attack happens when blood flow to the heart suddenly becomes blocked. Without the blood coming in, the heart can't get oxygen. If not treated quickly, the heart muscle begins to die. But if you do get quick treatment, you may be able to prevent or limit damage to the heart muscle.