Abstract
A cardiac arrhythmia is an irregular heart rhythm that occurs as a result of malfunction in the electrical signals of the heart. There are several types of arrhythmias. Atrial fibrillation (AF), an arrhythmia of the upper chamber of the heart, is the most common type of sustained arrhythmia, whereas ventricular tachycardia (VT), which originates in the lower chambers of the heart, has a lower rate of incidence than AF but is more difficult to manage.1 Standard treatments for arrhythmias include use of antiarrhythmic drugs which have potential long-term toxicities and the highly invasive catheter ablation procedures with reasonable efficacy but limited in some cases depending on the location and depth of the target.
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