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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 ...
Common warning signs of a heart attack are discomfort or pain in the chest; discomfort in other areas of the upper body, including pain in in one or both arms, the back, neck, jaw or stomach; and ...
Meanwhile, in plaque erosion, the plaque is rich with extracellular matrix, proteoglycan, glycoaminoglycan, but without fibrous caps, no inflammatory cells, and no large lipid core. After the coronary arteries are unblocked, there is a risk of reperfusion injury due spreading inflammatory mediators throughout the body.
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 ...
"Shortness of breath is a commonly missed early symptom of a heart attack, and it can occur with or without chest discomfort," she explains. Dr. Max Brock, MD, a cardiologist at Cook, echoes this ...
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.
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.
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.