Implantable cardioverter-defibrillator (ICD) therapy is a key method for treating cardiovascular patients, used for both primary and secondary prevention of sudden cardiac death. While a common intervention, the difficulties of understanding events during follow-up limit follow-up to centers with knowledge of the techniques involved, whereas this should be an essential skill in all cardiological units. Implantable Cardioverter Defibrillator Stored ECGs instructs the reader on the appropriate and optimal reading of device diagnostics. The authors are internationally renowned experts in electrophysiology and have considerable experience in training staff in all aspects of best practice. They make extensive use of case reports, illustrations, charts, and practical protocols for ICD follow-up. The reader will gain extensive clinical knowledge of the practice of ICD therapy by reviewing these case reports, which emphasize the skills necessary to increase specialist knowledge of defibrillator therapy practice. Electrophysiologists, cardiology technicians, residents, fellows and cardiology clinicians will gain benefit from using this book as a bedside tool to guide them to perform and interpret electrograms more comprehensively.