While atrial fibrillation is the most common type of arrhythmia, there are many other types of heart rate problems that can become an issue if left untreated. Consultant electrophysiologist and cardiologist Datuk Dr Razali Omar from Cardiac Vascular Sentral KL joins us to look at the various types of arrhythmia that present a burden to the population, as well as some new updates in the treatment of atrial fibrillation.