Mechanics of Recording ECG Vectorial Concept of the QRS Orientation of the ECG Leads Systematic Approach to the Interpretation of ECG ECG Waves, Intervals and Segments Guide for Heart Rate Estimation Proper Labeling of the Component Waves of the Ventricular Depolarization QRS Axis Glossary of Cardiac Rhythms A Normal ECG P Wave Abnormalities Ventricular Hypertrophy, Left, Right and Biventricular Intraventricular Conduction Defect AV Block Myocardial Infarction Simple electrophysiologic Characteristics of the Conduction Systems P-QRS Relationships In Arrhythmias Atrial Premature Beats Atrial Tachycardia Role of the AV Junction in supra ventricular Arrhythmias Effects of Adenosine in Supraventricular Arrhythmias 22. Supraventricular Tachycardia (SVT) Atrial Fibrillation Atrial Flutter Multifocal Atrial Tachycardia Ventricular Premature Beats Usefulness of Ventricular Premature Beats Aberrant Conduction Ventricular Tachycardia Electrolyte Problems Sinus Node Dysfunction32. Electronic Pacemaker Stress Electrocardiography Atrial Repolarization (Ta) Wave Preexcitation Syndrome.