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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.
In 2021, the American Heart Association clarified that "heart attack" is often mistakenly used to describe cardiac arrest. While a heart attack refers to death of heart muscle tissue as a result of blood supply loss, cardiac arrest is caused when the heart's electrical system malfunctions. Furthermore, the American Heart Association explains ...
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.
Heart disease is the number one killer of men and women in the United States—it kills more people than all cancers combined, and is responsible for one out of every four deaths, according to the ...
Heart attacks are common, too, with an estimated 805,000 people in the United States having a heart attack each year, or about one person every 40 seconds, according to the Centers for Disease ...
Hospital cases at new high as health chiefs raise fears that those with symptoms are failing to seek help