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A myocardial infarction (MI), commonly known as a heart attack, occurs when blood flow decreases or stops in one of the coronary arteries of the heart, causing infarction (tissue death) to the heart muscle. [1] The most common symptom is retrosternal chest pain or discomfort that classically radiates to the left shoulder, arm, or jaw. [1]
The word infarction means that some area of tissue has died due to a lack of blood flow, and therefore a lack of oxygen. “Myo” refers to the muscle, and “cardial” refers to the heart tissue. So with a heart attack, or MI, you have death of heart muscle cells because of a lack in blood flow, a process called necrosis.
Commonly associated with three clinical manifestations: ST elevation myocardial infarction (STEMI, 30%), non ST elevation myocardial infarction (NSTEMI, 25%), or unstable angina (38%) Blockage of a coronary artery: Adams–Nance syndrome: maybe disturbance in glycine metabolism: persistent tachycardia, paroxymal hypertension: Seizure
[5] [6] [14] It is the most common of the cardiovascular diseases. [15] CAD can cause stable angina, unstable angina, myocardial ischemia, [16] and myocardial infarction. [17] A common symptom is angina, which is chest pain or discomfort which may travel into the shoulder, arm, back, neck, or jaw. [4] Occasionally it may feel like heartburn.
Coronary artery disease, also known as "ischemic heart disease", [24] is a group of diseases that includes: stable angina, unstable angina, myocardial infarction, and is one of the causes of sudden cardiac death. [25] It is within the group of cardiovascular diseases of which it is the most common type. [26]
A normal ECG does not rule out acute myocardial infarction. Mistakes in interpretation are relatively common, and the failure to identify high risk features has a negative effect on the quality of patient care. [12] It should be determined if a person is at high risk for myocardial infarction before conducting imaging tests to make a diagnosis ...
Myocardial infarction complications may occur immediately following a myocardial infarction (heart attack) (in the acute phase), or may need time to develop (a chronic problem). After an infarction, an obvious complication is a second infarction, which may occur in the domain of another atherosclerotic coronary artery, or in the same zone if ...