Heart attack - NHS
WebbOverview. A heart attack (myocardial infarction or MI) is a serious medical emergency in which the supply of blood to the heart is suddenly blocked, usually by a blood clot. A heart attack is a medical emergency. Call 999 and ask for an ambulance if …
Myocardial infarction - Wikipedia
WebbA myocardial infarction (MI), commonly known as a heart attack, occurs when blood flow decreases or stops in one of the coronary arteries of the heart, causing infarction (tissue death) to the heart muscle. The most common symptom is retrosternal chest pain or discomfort that classically radiates to the left shoulder, arm, or jaw.
Heart attack - Symptoms & causes - Mayo Clinic
Webb9 okt. 2023 · 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.
Background information | MI - secondary prevention - CKS | NICE
WebbMyocardial infarction (MI) is necrosis (death) of a section of myocardial tissue (heart muscle) due to ischaemia (an inadequate supply of blood to the affected tissue). The usual cause of an MI is an atheromatous plaque that ruptures or erodes in a coronary artery, causing a thrombus (blood clot) to form.
Heart Attack (Myocardial Infarction) | Symptoms and Causes
Webb13 dec. 2020 · A heart attack (myocardial infarction) is usually caused by a blood clot, which stops the blood flowing to a part of your heart muscle. You should call for an ambulance immediately if you develop severe chest pain. In this article: What is a 'heart attack'? Symptoms. What should I do if I think I am having a heart attack? Causes.
Myocardial Infarction (Heart Attack): Symptoms and More - Healthline
Webb3 nov. 2021 · 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...
Myocardial Infarction - StatPearls - NCBI Bookshelf
Webb8 aug. 2023 · USA.gov. 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]
Heart Attack: Symptoms, Causes & Treatment - Cleveland Clinic
Webb15 feb. 2024 · A heart attack (myocardial infarction) is an extremely dangerous condition that happens because you don’t have enough blood flow to some of your heart muscle. This lack of blood flow can occur because of many different factors but is usually related to a blockage in one or more of your heart’s arteries .
Heart attack - BHF
WebbInformation & support. Heart attack. A heart attack is a medical emergency and you should call 999 for an ambulance immediately. It happens when there’s a sudden loss of blood flow to a part of the heart muscle. Without enough blood and oxygen your heart can be seriously damaged. What's on this page? Symptoms of a heart attack.
Acute Myocardial Infarction (MI) - Cardiovascular Disorders
WebbAcute myocardial infarction is myocardial necrosis resulting from acute obstruction of a coronary artery. Symptoms include chest discomfort with or without dyspnea, nausea, and/or diaphoresis. Diagnosis is by electrocardiography (ECG) and the presence or absence of biomarkers.