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Key Concepts Symptoms of acute coronary syndrome (ACS) are variable. Clinicians must consider ACS in a broad range of presentations, especially in patients prone to subtle or non-chest pain presentations (for example, women, older patients, or those with comorbidities such…
Introduction The electrocardiogram (ECG) is a graphic recording of the electrical activity of the heart. The standard ECG is obtained by applying electrodes over the chest and limbs to record the electrical activity of the cardiac cycle. Developed over 100…