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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.
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.
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 ...
A heart attack (also known as a myocardial infarction) occurs when the flow of blood to an area of the heart is blocked, often because of a buildup of substances like fat or cholesterol.
Calling before a heart attack becomes cardiac arrest requires knowing the signs and symptoms. If you have any of these signs, call 911 right away: Uncomfortable pressure, squeezing, fullness or ...
Symptoms include chest pain or angina, shortness of breath, and fatigue. [6]A completely blocked coronary artery will cause a heart attack. [6] Common heart attack symptoms include chest pain or angina, pain or discomfort that spreads to the shoulder, arm, back, neck jaw, teeth or the upper belly, cold sweats, fatigue, heartburn, nausea, shortness of breath, or lightheadedness.
[8] [9] Previously, the word "atypical" was used to describe chest pain not typically heart-related, however, this word is not recommended and has been replaced by "noncardiac" to describe chest pain that indicate a low likelihood of heart-related pain. [9] In unstable angina, symptoms may appear on rest or on minimal exertion. [6]