ST-elevation myocardial infarction

Presents with central chest pain that is classically heavy in nature, like a sensation of pressure or squeezing. Examination is variable, and findings range from normal to a critically ill patient in cardiogenic shock.

ST-elevation myocardial infarction (STEMI) is suspected when a patient presents with persistent ST-segment elevation in 2 or more anatomically contiguous ECG leads in the context of a consistent clinical history.

Creatine kinase-MB and cardiac-specific troponins confirm diagnosis. Treatment should, however, be started immediately in patients with a typical history and ECG changes, without waiting for laboratory results.

Immediate and prompt revascularization can prevent or decrease myocardial damage and decrease morbidity and mortality.

About 15% of patients in the US who have an acute MI will die of it.

Survivors of acute MI should be closely followed up for adequate modification of risk factors and development of complications.

MI is myocardial cell death that occurs because of a prolonged mismatch between perfusion and demand. This is usually caused by occlusion in the coronary arteries. ST-elevation myocardial infarction (STEMI) is suspected when a patient presents with persistent ST-segment elevation in 2 or more anatomically contiguous ECG leads in the context of a consistent clinical history.