Acute coronary syndrome (ACS) with or without ST-elevation is a diagnosis established at the stage of initial contact with the patient based on the clinical picture, electrocardiogram (ECG) data and the level of markers of myocardial necrosis.  and is usually accompanied by complete thrombotic occlusion of the coronary artery requiring emergency care, including thrombolytic therapy. ACS without ST elevation may be accompanied by unstable angina and also requires observation and treatment, especially in patients with atypical symptoms characteristic of the elderly, women, and those with chronic diseases.

Acute coronary syndrome, myocardial necrosis, unstable angina, thrombolytic therapy, thrombotic occlusion, angina attack, atypical symptoms.

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