Researchers dedicated to the fundamental and clinical aspects of fibrillation and defibrillation, together with involved physicians, have exchanged their first hand research and experiences and incorporated it into this monograph which presents and reviews their latest results. The four parts of this book provide updated information on sudden cardiac death and the electrophysiology of atrial and ventricular fibrillation. Special consideration is given to device therapy, with the goal of providing the reader with useful information for the decision-making process in medical practice. This book should become a standard reference item to clinics worldwide where therapy for fibrillation is being carried out. It contains essential information of the use of ICD implants including instructions on titration and follow-up. It should be a basic text for this area of medical endeavor.