Cardiology

Getting back to work after a heart attack

Heart attack patients with the desire to return to work can do it. That's the main message of a paper published today in the European Journal of Preventive Cardiology, a journal of the European Society of Cardiology (ESC).

Cardiology

Team improves emergency care for patients with chest pain

Emergency physicians at Kaiser Permanente hospitals in Southern California reduced hospital admissions and cardiac stress testing by using new criteria to assess the level of risk patients with chest pain have for subsequent ...

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Acute coronary syndrome

An acute coronary syndrome (ACS) is a set of signs and symptoms (syndrome) related to the heart. ACS is compatible with a diagnosis of acute myocardial ischemia, but it is not pathognomonic.

The sub-types of acute coronary syndrome include unstable angina (UA, not associated with heart muscle damage), and two forms of myocardial infarction (MI, heart attack), in which heart muscle is damaged. These types are named according to the appearance of the electrocardiogram (ECG/EKG) as non-ST segment elevation myocardial infarction (NSTEMI) and ST segment elevation myocardial infarction (STEMI). There can be some variation as to which forms of MI are classified under acute coronary syndrome.

ACS should be distinguished from stable angina, which develops during exertion 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.

Though ACS is usually associated with coronary thrombosis, it can also be associated with cocaine use. Cardiac chest pain can also be precipitated by anemia, bradycardias (excessively slow heart rate) or tachycardias (excessively fast heart rate).

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