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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.
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.
Cardiovascular disease (CVD) is any disease involving the heart or blood vessels. [3] CVDs constitute a class of diseases that includes: coronary artery diseases (e.g. angina, heart attack), heart failure, hypertensive heart disease, rheumatic heart disease, cardiomyopathy, arrhythmia, congenital heart disease, valvular heart disease, carditis, aortic aneurysms, peripheral artery disease ...
Heart failure is a medical condition that needs to be treated to prevent a life-threatening heart attack, but is not as immediately life threatening as heart attack or cardiac arrest.
The resulting ischemia (restriction in blood supply) and oxygen shortage, if left untreated for a sufficient period of time, can cause damage or kill heart muscle tissue . Histopathology at high magnification of a normal brain neuron, and a brain infarction at approximately 24 hours on H&E stain : The neurons become hypereosinophilic and there ...
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.
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.
The idea that heart attack pain originates in the chest is obvious—that's where your ticker is, after all. However, someone in the U.S. has a heart attack about every 40 seconds , and their ...