Acute Coronary Syndrome Stocks List
- Acute Coronary Syndrome
Acute coronary syndrome (ACS) is a syndrome (set of signs and symptoms) due to decreased blood flow in the coronary arteries such that part of the heart muscle is unable to function properly or dies. The most common symptom is chest pain, often radiating to the left shoulder or angle of the jaw, crushing, central and associated with nausea and sweating. Many people with acute coronary syndromes present with symptoms other than chest pain, particularly, women, older patients, and patients with diabetes mellitus.Acute coronary syndrome is commonly associated with three clinical manifestations: ST elevation myocardial infarction (STEMI, 30%), non ST elevation myocardial infarction (NSTEMI, 25%), or unstable angina (38%).
These types are named according to the appearance of the electrocardiogram (ECG) as non-ST segment elevation myocardial infarction and ST segment elevation myocardial infarction. There can be some variation as to which forms of myocardial infarction (MI) are classified under acute coronary syndrome.ACS should be distinguished from stable angina, which develops during physical activity or stress and resolves at rest. In contrast with stable angina, unstable angina occurs suddenly, often at rest or with minimal exertion, or at lesser degrees of exertion than the individual's previous angina ("crescendo angina"). New-onset angina is also considered unstable angina, since it suggests a new problem in a coronary artery.
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