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A heart attack occurs when the blood flow to your heart is blocked. The most common cause is coronary artery disease. Heart attacks are medical emergencies that require immediate medical attention ...
Myocardial infarction; Other names: Acute myocardial infarction (AMI), heart attack: A myocardial infarction occurs when an atherosclerotic plaque slowly builds up in the inner lining of a coronary artery and then suddenly ruptures, causing catastrophic thrombus formation, totally occluding the artery and preventing blood flow downstream to the heart muscle.
A heart attack, or myocardial infarction, occurs when blood flow to the heart is suddenly blocked. This medical emergency is often the result of coronary artery disease. ... The causes of heart ...
Coronary thrombosis is defined as the formation of a blood clot inside a blood vessel of the heart. This blood clot may then restrict blood flow within the heart, leading to heart tissue damage, or a myocardial infarction, also known as a heart attack.
This condition slows or blocks the supply of oxygen-rich blood to the heart. [2] This condition can lead to myocardial ischemia [2] and if untreated, may cause a heart attack and heart failure. [3] It is the most common form of cardiovascular disease, and is the leading cause of death in the United States, affecting 18 million adults. [4]
Most heart attacks are caused by atherosclerosis. Other causes include a blood clot that travels from elsewhere, a spasm, or a tear in a coronary artery.
The underlying causes of sudden cardiac arrest can result from cardiac and non-cardiac etiologies. The most common underlying causes are different, depending on the patient's age. Common cardiac causes include coronary artery disease, non-atherosclerotic coronary artery abnormalities, structural heart damage, and inherited arrhythmias. Common ...
Another less frequent cause of a heart attack is a spasm caused by tobacco or possibly illicit drugs, such as cocaine, which disables the heart muscle, according to the American Heart Association ...