Professor Etienne Delacrétaz is an associate professor and associate physician at the University of Bern. He is an arrhythmia specialist active in all main clinical fields including catheter ablation and device therapy and is the director of clinical research in electrophysiology. He is the author of a number of original papers, case reports, and reviews, including a review on management of supraventricular tachycardia recently published in the New England Journal of Medicine. He is a member of the following professional societies: Swiss Medicine Association; Swiss Society of Cardiology; Heart Rhythm Society; Fellow of the European Society of Cardiology. Professor Delacrétaz received his MD from the University of Lausanne, Switzerland. He completed a clinical fellowship in Cardiology at University Hospital Bern, Switzerland and a clinical and research fellowship in Electrophysiology, Cardiovascular Division at Brigham and Women’s Hospital in Boston, Massachusetts.