Stuart J Beldner, MD, is Assistant Director of Electrophysiology at North Shore University Hospital in Manhasset, New York. He is board-certified in internal medicine and cardiovascular disease. He is a member of the American College of Cardiology (ACC), the American Heart Association (AHA), and the Heart Rhythm Society. In addition to publishing original manuscripts and abstracts, Dr Beldner has participated in review articles on ablation techniques of ventricular tachycardia and atrial fibrillation, which is his area of expertise. He received his medical degree from Sackler School of Medicine and carried out his internship, medical residency, and cardiology training at North Shore University Hospital. He completed additional training in cardiac electrophysiology at the University of Pennsylvania, where he studied all aspects of arrhythmia care.