<unk>  <unk>  is a syndrome (a set of signs and symptoms) due to decreased blood flow in the<unk>  arteries such that part of the heart muscle is unable to function properly or dies. The most common symptom is centrally located chest pain, often radiating to the left shoulder or angle of the jaw, crushing, central and associated with nausea and sweating. Many people with<unk> s present with symptoms other than chest pain, particularly women, older people, and people with diabetes mellitus.<unk>  is subdivided in three scenarios depending on the duration of symptoms, the presence of ECG changes and blood test results: ST elevation myocardial infarction (STEMI, 30%), non-ST elevation myocardial infarction (NSTEMI, 25%), or unstable angina (38%). Generally, when symptoms occur for less than 30 minutes, it is unstable angina. When symptoms are prolonged for more than 30 minutes, the diagnosis is acute myocardial infarction.<unk>  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<unk>  artery.
Acute coronary syndrome
Costochondritis
Acute chest syndrome
Bornholm disease
Wooden chest syndrome
Digoxin toxicity
Acute pericarditis
Unstable angina