Interpreting Cardiac Electrograms

This is a reference book aimed at cardiologists, electrophysiologists and fellows in training. It presents an expansive review of cardiac electrogram interpretation in a collation of manuscripts that represent clinical studies, relevant anecdotal cases and basic science chapters evaluating cardiac signal processing pertaining to persistent atrial fibrillation. A diagnostic approach to arrhythmias using a standard ECG, the signal average ECG and fetal ECG is highlighted. Intracardiac ICD electrograms are also explored in terms of trouble shooting and device programming.

Created by experts from the Mayo Clinic, Interpretation of Intracardiac Electrograms: The Fundamentals is a unique, interactive online tool to help trainees, technicians, and clinicians gain a working understanding of basic intracardiac electrophysiologic concepts and tracings. Online examples of tracings combined with dynamic animations illustrate concepts in sinus rhythm, third-degree atrioventricular block, atrioventricular re-entrant tachycardia, ablation procedures, AV nodal re-entrant tachycardia, atrial flutter, atrial fibrillation, and ventricular tachycardia. A self-assessment examination is included so that you may test yourself on the rhythms you have learned, and review those that pose extra difficulty. This unique online teaching tool... • Provides examples of intracardiac electrophysiologic tracings and animation of the electrical wavefronts on a heart diagram • Offers a brief description of each arrhythmia, followed by an interactive version of an intracardiac electrophysiologic tracing • Shows the wavefront as it moves through the heart diagram • Uses color-coded catheters to match the electrophysiologic tracings to which they correspond • Tests your knowledge before and then after using the module with a brief self-assessment exam

Although the electrocardiogram (ECG) is accepted as a standard clinical tool, electrograms (EGMs) recorded during electrophysiology studies are considered complex and confusing. In this brief paperback, an award-winning teacher provides the newcomer with an introductory guide to electrophysiology studies and the interpretation of electrograms. Dr. Kusumoto divides the 15 chapters into two main sections, Electrophysiology Concepts and Specific Arrhythmias. First, he reviews the basics of electrophysiology testing and the diagnostic evaluation of general types of arrhythmias. From that foundation, he proceeds to discuss specific arrhythmia types and techniques for evaluation and ablation: • Accessory pathways • AV node reentry • Focal atrial tachycardia • Atrial flutter • Atrial fibrillation • Ventricular tachycardia The final chapter considers implantable cardiac devices as they relate to ECGs and electrograms. Each short chapter includes a bullet-point summary and helpful review questions. Plentiful ECG and EGM tracings illustrate the text. Cardiology and electrophysiology fellows, allied professionals working in the electrophysiology laboratory, and all professionals interested in beginning a study of heart rhythms and electrophysiology will want to keep Understanding Intracardiac EGMs and ECGs close at hand for frequent reference. Titles of Related Interest Taylor, 150 Practice ECGs: Interpretation and Review, 3rd Edition ISBN: 978-1-4051-0483-8 Fogoros, Antiarrhythmic Drugs: A Practical Guide, 2nd Edition ISBN: 978-1-4051-6351-4 Stouffer, Practical ECG Interpretation: Clues to Heart Disease in Young Adults ISBN: 978-1-4051-7928-7 Abedin, ECG Interpretation: The Self-Assessment Approach, 2nd Edition ISBN: 978-1-4051-6749-9

In the fast paced world of clinical training, students are often inundated with the what of electrophysiology without the why. This new text is designed to tell the story of electrophysiology so that the seemingly disparate myriad observations of clinical practice come into focus as a cohesive and predictable whole. Presents a unique, conceptually-guided approach to understanding the movement of electrical current through the heart, the impact of various disease states and the positive effect of treatment Reviews electrophysiologic principles and the analytic tools which, when combined with a firm grasp of EP mechanisms, allow the reader to think through any situation Presents the mathematics necessary for the practice of cardiac electrophysiology in an accessible and understandable manner Contains accompanying video clips, including computer simulations showing the flow of electrical current through the heart, which help explain and visualise concepts discussed in the text Includes helpful chapter summaries and full color illustrations aid comprehension

This book provides a concise overview of cardiac electrophysiology for cardiologists who are not electrophysiologists and for allied cardiovascular professionals, cardiology registrars and fellows who are new to the field. It familiarises them with the main procedures performed in the electrophysiology laboratory. Emphasis is placed on helping the reader develop a core understanding of how data is collected and interpreted in the electrophysiology laboratory, and how this is used to guide ablation for the commonest arrhythmias including AV nodal re-entry tachycardia, accessory pathways, atrial fibrillation and ventricular arrhythmias. Decoding Cardiac Electrophysiology: Understanding the Techniques and Defining the Jargon will translate some of the technical terminology and data frequently used by electrophysiologists into terms and concepts familiar to the wider cardiovascular community. This includes the interpretation of electrograms and 3D electro-anatomical maps of common arrhythmias. Accordingly, it offers a valuable resource for all non-electrophysiologists seeking a guide to the topic and for electrophysiology trainees establishing their core knowledge and skills in the field. The aim is that this should be the first book anyone new to the field should choose to read.

Nothing is more perplexing to the clinician new to device therapy than having to deal with cardiac electrocardiograms from a device patient. Pacemakers and other implantable cardiac rhythm management devices leave their “imprint” on ECGs and can significantly change what clinicians see - or expect to see. Evaluating paced ECGs can be challenging, yet nowhere is it taught in any sort of comprehensive manner. Designed specifically for clinicians new to device therapy, The Nuts and Bolts of Interpreting Paced ECGs and EGMs offers practical, reliable and objective information on paced cardiac electrograms. Written in a lively, intelligent and easy to navigate style, emphasizing real-life clinical practice and practical tips, this book includes illustrated paced ECGs by skilled artists to help minimize “fuzzy” lines and emphasize key points. Each chapter concludes with a checklist of key points from each subject (“Nuts and Bolts”).

From master teacher George J. Klein, MD, this stepwise book is for those with a working knowledge of electrophysiology who have looked at a complicated ECG or intracardiac tracing and drawn a blank, not recognizing a pattern from their personal experience, and without a good idea of how to proceed or venturing a guess with variable confidence. Dr. Klein presents strategies that he has found useful, not just by providing an “answer,” but also exploring how he solved the problem with a systematic approach using “tools” of analysis that applies to both ECGs and EGM tracings.

ECG Interpretation: An Incredibly Easy! Pocket Guide provides time-starved nurses with the essentials of electrocardiography in a streamlined, bulleted, and highly visual format. The book fits into a pocket for quick reference anytime and anywhere and uses charts, illustrations, logos, and other Incredibly Easy! features to help nurses spot key points at a glance. Topics include ECG basics, such as obtaining and interpreting rhythm strips; arrhythmia interpretation; pacemakers and ICDs; and 12-lead ECGs. For each arrhythmia, causes, signs and symptoms, and pharmacologic and nonpharmacologic treatment are presented. Test Zone questions and answers evaluate the reader's mastery of the subject.

Written as a companion text to Dr Hesselson's first book aboutpacing, Simplified Interpretation of ICD Electrograms focuses onteaching an understanding of the electrogram (EGM) signal fortroubleshooting ICD rhythms. The book includes an in depth reviewof the general function of an ICD (defilbrillation electronics,arrthythmia detection/therapy), as well as an extended summary ofthe commonly encountered arrthythmia in an EGM and ECG format.Throughout the book, Dr Hesselson emphasizes that the key fortroubleshooting these devices lies in the ability to make thetransition from surfaceECG to EGM interpretation. Also included isan extensive chapter on biventricular pacing, particularly as itrelates to its function in an ICD. The book ends with 50 clinicalcase studies designed to illustrate the text's keyprinciples. No one has attempted previously to explain the EGM signal in such apedagogical style, and no significant amount of material has beenformally published detailing methods for troubleshootingbiventricular ICD pacing systems. * Expert guidance on understanding the EGM signal fortroubleshooting ICD rthythms. * Includes 50 clinical case studies. * Covers all aspects of the general function of ICDs. * Contains an extensive chapter on biventricular pacing.