Acute myocardial infarction during l-thyroxine therapy in a patient with intermittent changing axis deviation,

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Myocarditis III: Medical Management

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ECG Interpretation of Arrhythmias II: Atrial, Junctional and Ventricular Arrhythmias

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Disturbances in Heart Rhythm

Arrhythmia or dysrhythmia refers to an abnormal heart rhythm caused by a defect in the heart's conduction system. It can cause the heart to beat irregularly, too quickly, or too slowly, leading to symptoms like chest pain, shortness of breath, and fainting. Factors such as stress, caffeine, alcohol, nicotine, cocaine, certain drugs, congenital defects, diseases, and electrolyte abnormalities can trigger arrhythmias.
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