What lies behind IAP, IVP, AH, HV, and LAVA? How can a SVT be differentiated through stimulation maneuvers? How is the mapping of complex arrhythmias achieved? The techniques of invasive electrophysiology are rapidly evolving and becoming increasingly sophisticated. This book explains the essential fundamentals of the field in an understandable manner, richly illustrated and with many practical tips. It specifically targets beginners who are seeking an overview of all aspects of invasive electrophysiology and wish to understand the connections. From the Content Electrophysiological mechanisms of cardiac arrhythmias Energy sources for ablation and their mechanisms of action Setup, puncture techniques, 3D mapping systems Diagnosis and therapy of cardiac arrhythmias, including typical and atypical atrial flutter, atrial fibrillation, idiopathic PVCs, VT in ischemic and non-ischemic cardiomyopathy Management of complications Practical Plus: Numerous video contributions on individual arrhythmias, mapping techniques, and diagnostic maneuvers, as well as a glossary with the most important technical terms The Editors Dr. med. Leon Iden, Senior Physician, Head of Electrophysiology, Department of Cardiology, Heart and Vascular Center of the Segeberger Kliniken GmbH Dr. med. Martin Borlich, Senior Physician, Deputy Head of Electrophysiology, Department of Cardiology, Heart and Vascular Center of the Segeberger Kliniken GmbH Prof. Dr. med. Philipp Sommer, Director of the Clinic for Electrophysiology and Rhythmology, Heart and Diabetes Center NRW The translation was done with the help of artificial intelligence. A subsequent human revision was done primarily in terms of content. This book is a translation of an original German edition. The translation was done with the help of artificial intelligence (machine translation by the service DeepL.com). A subsequent human revision was done primarily in terms of content, so that the book will read stylistically differently from a conventional translation.