This issue of Cardiac Electrophysiology Clinics, edited by Drs. Mohammad Shenasa, N. A. Mark Estes III, and Gordon F. Tomaselli, will cover Contemporary Challenges in Sudden Cardiac Death. Topics covered in this issue include Pathophysiology; Basic electrophysiological mechanism; Channelopathy and Myopathy as causes of sudden cardiac death; Public access to defibrillation; Sudden cardiac death in children adolescence; Sudden cardiac death in specific cardiomyopathies; Ventricular arrhythmias and sudden cardiac death; lessons learned from cardiac implantable rhythm devices; future directions, and more.

This issue of Cardiac Electrophysiology Clinics, edited by Drs. Luigi Padeletti and Giuseppe Bagliani, will cover the latest in Normal Electrophysiology, Substrates, and the Electrocardiographic Diagnosis of Cardiac Arrhythmias. Topics covered in this issue include History of Arrhythmias; P wave and arrhythmias originating in the atria; PQ interval and Junctional zone; QRS complex; Ventricular repolarization during arrhythmias; Classification and specific electrocardiographic pattern of Cardiac Arrhythmias; and Electrocardiographic practice of cardiac arrhythmias.

In this issue of Cardiac Electrophysiology Clinics, guest editor Matthew W. Martinez brings his considerable expertise to the topic of Sports Cardiology. Cardiovascular causes account for most sports-related deaths, especially in young athletes. Causes of sudden cardiac arrest are heterogeneous and associated with a spectrum of cardiovascular diseases. Most cases are associated with congenital or acquired cardiac abnormalities, with most events in individuals that had not been previously detected. The field of sports and exercise cardiology continues to evolve to encompass the burgeoning number of people who are physically active, including tactical athletes, and those with cardiovascular diseases or risk factors.Key Features - Contains relevant, practice-oriented topics including Preparticipation Cardiac Evaluation from the Pediatric Perspective; The Acute Impact of Endurance Exercise on Right Ventricular Structure and Function; Cardiopulmonary Exercise Testing Interpretation in Athletes; Exercise After Acute Myocarditis; and more. - Provides in-depth clinical reviews Sports Cardiology, offering actionable insights for clinical practice. - Presents the latest information on this timely, focused topic under the leadership of experienced editors in the field. Authors synthesize and distill the latest research and practice guidelines to create clinically significant, topic-based reviews.

In this issue of Cardiac Electrophysiology Clinics, guest editors Drs. Emily Zeitler and Luigi Di Biase bring their considerable expertise to the topic of Case-Based Studies in Cardiac Electrophysiology. Top experts discuss various real-world cases in the field, including SVC tear; ICD extraction in LVAD patient; extraction and lead management in myotonic dystrophy; complex lead management decision making; extraction in patient with psLSVC; and more. - Contains 18 relevant, practice-oriented topics including multiple AF ablation cases; multiple pediatric/genetics EP cases; considerations for elective open extraction including debulking; lead management around structural heart interventions; and more. - Provides in-depth clinical reviews on case-based studies in cardiac electrophysiology, offering actionable insights for clinical practice. - Presents the latest information on this timely, focused topic under the leadership of experienced editors in the field. Authors synthesize and distill the latest research and practice guidelines to create clinically significant, topic-based reviews.

This issue of Cardiac Electrophysiology Clinics, Guest Edited by Drs. Jason Bradfield and Kalyanam Shivkumar, is dedicated to Epicardial Interventions in Electrophysiology. This is one of four issues selected each year by the series Consulting Editors, Ranjan K. Thakur and Andrea Natale. Topics include, but are not limited to, Anatomy of the Pericardial Space, Techniques for Percutaneous Access, Peri-operative Imaging to Guide Epicardial Mapping and Ablation, Epicardial Ablation of Idiopathic Ventricular Tachycardia, Epicardial Ablation of Ischemic Ventricular Tachycardia, Epicardial Ablation of Non-ischemic Ventricular Tachycardia, Epicardial Ablation of Arrhythmogenic Right Ventricular Cardiomyopathy, Epicardial Ablation of Ventricular Arrhythmia secondary to Brugada Syndrome, Epicardial Ablation of Supraventricular Tachycardia, Epicardial Ablation of Atrial Fibrillation, Hybrid Surgical Epicardial Ablation, Epicardial Ablation via the Arterial and Venous System, Epicardial Ablation Biophysics and novel Radiofrequency Energy Delivery Techniques, Epicardial Ablation Complications, and The Future of Epicardial Interventions.

In this issue of Cardiac Electrophysiology Clinics, Guest Editors Eric N. Prystowsky and Benzy Padanilam bring their considerable expertise to the topic of Cardiac Conduction System Disorders. Top experts in the field cover key topics such as sinus node abnormalities, electrocardiography of AV block, AV conduction, pacemaker-induced cardiomyopathy, and more. - Provides in-depth, clinical reviews on Cardiac Conduction System Disorders, providing actionable insights for clinical practice. - Presents the latest information on this timely, focused topic under the leadership of experienced editors in the field; Authors synthesize and distill the latest research and practice guidelines to create these timely topic-based reviews. - Contains 16 relevant, practice-oriented topics including Anatomy and Pathology of the cardiac conduction system; Physiologic variants of cardiac conduction; Genetic abnormalities of SA node and AV conduction?; Epidemiology of Prolonged PR interval; and more.

In this issue of Cardiac Electrophysiology Clinics, guest editor Dr. Matthew J. Daniels brings his considerable expertise to the topic of Left Atrial Appendage Occlusion. Top experts in the field discuss topics such as pre-cath laboratory planning for left atrial appendage occlusion: optional or essential; the case for intracardiac echo to guide left atrial appendage closure; follow-up imaging after left atrial appendage occlusion: something or nothing and for how long?; left atrial appendage closure: what the evidence does and does not reveal; and more. - Contains 11 practice-oriented topics including the strengths and weaknesses of the LAA covering disc occluders; left atrial appendage occlusion strengths and weaknesses of the lobe-only occluder concept in theory and in practice; the strengths and weaknesses of left atrial appendage ligation or exclusion (LARIAT, AtriaClip, Surgical Suture); the future of LAAC—in 5, 10, and 20 years; and more. - Provides in-depth clinical reviews on left atrial appendage occlusion, offering actionable insights for clinical practice. - Presents the latest information on this timely, focused topic under the leadership of experienced editors in the field. Authors synthesize and distill the latest research and practice guidelines to create clinically significant, topic-based reviews.