Organization of the Scientific Program.- Methods and Results of the Review Process.- Basic Electrophysiology.- Coronary Circulation, Myocardial Energetics and Pumping Efficiency under Cardiac Pacing.- Effects of Alteration in Cardiac Pacemaker Site on Myocardial Contractile Response to Inotropic Stimulation and Exercise in Conscious Dogs.- Effects of Reversible Cooling on Reentrant Tachycardia in Canine Infarction.- Electropharmacology of Diltiazem in a Chronic Canine Myocardial Infarction, Ventricular Tachyarrhythmia Model.- Late Potentials and Delayed Intrinsic Deflections - A Comparative Study in Acute Regional Ischemia in Isolated Porcine Hearts.- Sinus Node - Sinoatrial Conduction.- Ageing and Atrial Electrophysiologic Properties in Man.- Effectiveness of A-C Bypass Operation for Improvement of Sinus Bradycardia for Patients with Right Coronary Disease and Preoperative Pacing.- The Human Sinus Node Electrogram on the Overdrive Suppression Test and Estimated Sinoatrial Conduction Time Measurements.- A Study on Atrial Potential Characteristics and its Relation to ECG.- Blood Volume Changes and Sinus Node Function.- Loss of Sinus Activity after Long-Term Permanent VVI Pacing.- Long-Term Follow-Up of Paced Patients with Sick Sinus Syndrome.- Termination of Pacing in Patients with Sick Sinus Syndrome and Implanted Pacemakers who Developed Chronic Atrial Fibrillation.- AV-Conduction - VA-Conduction.- Electrophysiologic Effects of Reduced Oxygen Supply on the Transmembrane Potential and Membrane Current Systems of the Rabbit Atrioventricular Node.- Catheter Biopsy Assessed Cardiomyopathic and Postmyocarditic Changes in Cases with Atrioventricular or Intraventricular Conduction Disturbance.- Atrial Contribution in VVI Pacing.- Stability of A V Conduction in Patients with Implanted Atrial Pacemakers.- Atrio-Ventricular and Ventriculo-Atrial Conduction in Patients with Symptomatic Sinus Node Dysfunction.- Deleterious Clinical and haemodynamic Effects of V-A Retroconduction in Symptomatic Sinus Brady-Arrhythmias (S.S.B.) Treated with V.V.I. Pacing: Their Regression with A.A.I. Pacing.- Intra-Atrial Recording of Ventriculoatrial Conduction During Pacemakers’l Implantation.- A Comparative Analysis of the Effect of Glucagon and Atropine in the Sinus and Atrio Ventricular Nodes.- Conducting System Assessed by his Bundle Electrograms from the Permanent Atrial Electrode at Implantation.- Functional Sinoatrial Node Disorders: An Association with Dual Atrioventricular Node Pathways.- Early Clinical Experience with a DDD Pacemaker.- Influence of Physiological Pacing on Hemodynamics.- Comparison of Left Ventricular Myocardial Blood Flow During Atrial and Ventricular Pacing.- Influence of Atrio-Ventricular Contraction Interval on Hemodynamics.- The Effect of Pacing Mode on External Work and Myocardial Oxygen Consumption.- Left Ventricular Pump Function after Long-Term Treatment with Ventricular Pacing Compared to Atrial Synchronous Pacing.- Underestimation of Stroke Volume (SVI) and Cardiac Index (CI) by TM-Echocardiography During Ventricular Pacing.- Study of the Left Ventricular Performance During Sequential and Ventricular Pacing by QuantitatiYe Two Dimensional Echocardiography.- Mitral Valve Function and Cardiac Dimensions During Ventricular (VVI) and Sequential Atrio-Ventricular (DVI) Pacing. Echocardiographic Study.- Comprehensiye Evaluation of Ventricular Function During Physiological Pacing.- Cardiac Adaptation to Dynamic Exercise in Pacemaker Implanted Patients.- Doppler Ultrasound Measurement of Cardiac Output in Patients with Physiologic Dual Chamber Pacemakers.- Influence of Pacing Mode and Parameter of Left Ventricular Function (L VF) Measured by Tc-Nucleidventriculography (Tc-N).- Effect of Right Ventricular Pacing Rate on the Asynchronous Contraction of the Ventricles Studied by a Phase Analysis of Multigated RN Angiocardiogram.- New Generators.- Rate Responsive Pacing Using the TX Pacemaker.- A Pacemaker which Automatically Increases its Rate with Physical Activity.- Automatic Atrial-Guided Adjustment of Ventricular Pacing Rate in Complete AV Block.- Mixed Venous Oxygen Saturation for Rate Control of an Implantable Pacing System.- Output Programmable Pulse Generator Adjustment: Pulse Duration or Amplitude.- External-Type All-Purpose Cardiac Pacemaker.- Clinical Investigation of a Multi-Programmer.- Leads.- Polyurethane as a Pacemaker Lead Insulator.- Immunity Mechanisms Involved in the Degradation of Polyurethane Leads - A Comparison between Silicone and Polyurethane -.- Comparison of Lead Complications with Polyurethane Tined, Silicone Rubber Tined, and Wedge Tip Ventricular Pacemaker Leads.- A New Polyurethane and Process for Pacer Leads.- Ventricular Lead in Atrial Position.- Atrial Amplitude Mapping to A void P Wave Sensing Failure.- Comparison of Transvenous Atrial Electrodes Employing Active (Helicoidal) and Passive (Tined J-Lead) Fixation in 120 Patients.- Improved Electrophysiological Performance Using Porous-Surfaced Electrodes for Atrial Epicardial Pacing.- Comparative Studies of Ventricular and Atrial Stimulation Thresholds of Carbon-Tip Electrodes.- A New Steroid-Eluting Low Threshold Pacemaker Lead.- A Steroid-Eluting, Low-Threshold, Low-Polarizing Electrode.- Resistive Equivalent of Lead Impedance.- Effect of Pore Size on Threshold and Impedance of Pacemaker Electrodes.- A Comparison Study of Chronaxie, Rheobase and Threshold Values for Solid, Porous and Carbon Tip Electrodes.- An Even More Physiological Pacing: Changing the Sequence of Ventricular Activation.- Fifteen Year Experience with Atrial Electrodes and Pacing.- An A-V Data Lead System for Electrogram Detection.- Rates and Modes of Failure for Eight Lead Types in 703 Implants: A Four-Year Structured Study.- Flexibility of Permanent Intracardiac Electrode Leads. Achivieng a Balance between Perforation and Displacement.- Four Years Experience with the Bisping Transvenous Pacemaker Electrode.- Management of Pacemaker Patients.- Management of Pacemaker Patients - Basic Concepts.- Techniques for Permanent Transvenous Pacemaker Implantation: Personal Preferences.- Dual Chamber Pacing - Pacing Modes.- Symptom Control and Psychosocial Rehabilitation of Chronic Pacemaker Patients with Different Pacing Modes.- Follow-Up of Pacemaker Patients.- Dual Chamber Pacemakers - Follow Up.- Dual Chamber DDD Pacing: Initial and Early Follow-Up Assessments. Problems, Complications and Limitations.- Survival After Pacemaker Implantation.- Long-Term Follow-Up of Patients with Reused Implanted Pacemakers.- The Isotopic Cardiac Pacemaker: A Ten-Year Clinical Experience.- Complications in Cardiac Pacing.- 1) Arrhythmias.- Arrhythmias Caused by Dual-Chambered Pacing.- Method to Assess and Avoid Re-Entrant Tachycardias with Dual Chamber Sensing Pacemakers.- A Method for Predicting the Potential for Pacemaker-Induced Reciprocating Tachycardias in Patients with DDD Pulse Generators.- Eccentricities of DDD (A V Universal) Pacemakers.- 2) Myopotentials.- Diaphragmatic Myopotential Inhibition in Multiprogrammable Unipolar and Bipolar Pulse Generators.- Rectus Abdominis as a Source of Myopotentials Inhibiting Demand Pacemakers.- Incidence and Significance of Muscle Potential Interference in Patients with Dual Chamber Pacemakers.- Influence of Myopotentials on Implanted DDD-M Pacemakers.- Early “Exit Block” or “Late” Myocardial Perforation? Clinician’s Dilemma and What to Do?.- Syncope in Pacemaker Patients: Diagnostic Value of Dynamic Electrocardiography.- Pacing in Children.- Uniformed Services Collaborative Study on Indications and Follow-Up of Pacemakers in Children.- Long-Term Endocardial Pacing in Children with Postoperative Bradycardia-Tachycardia Syndrome Following the Senning, Mustard and Fontan Operations.- Cardiac Pacing in Children: A French Multicenter Study of 241 Patients.- Clinical Reliability of Multiprogrammable Pacemaker in Pediatrics.- Tachyarrhythmias.- 1) Diagnostic Procedures.- His Bundle Recording and Electrical Programmed Stimulation.- Assessment of Ventricular Vulnerability by Holter ECG, Programmed Ventricular Stimulation and Recording of Ventricular Late Potentials.- Activation Mapping and Functional Properties of Single Premature Ventricular Beats in Asymptomatic Patients: Electrophysiologic Evidence of Supernormal Conduction and Latency.- Methods for N on-Invasive Detection of Ventricular Late Potentials - A Comparative Multicenter Study.- Reproducibility of Measurements Made by Signal Averaging the Body Surface Vectorcardiogram.- Electrophysiological Studies at Exercise in Patients with Accessory Atrioventricular Pathways.- Diagnostic and Prognostic Significance of Ventricular Late Potentials in Patients with Coronary Heart Disease.- Influence of Current Strength and Length of Basic Drive on Atrial Refractoriness in Man.- Intraoperative Spectral Analysis of Ventricular Potentials During Sinus Rhythm and Ventricular Tachycardia.- 2) Influence on Hemodynamics.- Left Ventricular Function During Ventricular Pacing and Ventricular Tachycardia in Man.- Hemodynamics During Simulated Paroxysmal Ventricular Tachycardias in Valvular Aortic Stenosis: Role of the Transva1vular Systolic Gradient and Aortic Valve Area During Stress Conditions.- Relative Contributions of Mitral and Pulmonary Venous Regurgitation to the Adverse Hemodynamic Consequences of Various Cardiac Arrhythmias.- 3) Treatment: a) Drug.- Treatment of Ventricular Arrhythmias: Drugs.- Role of Electrophysiologic Studies with Acute Drug Testing in Refractory Supraventricular Tachycardia.- Detection of Arrhythmias and Control of Efficacy of Antiarrhythmic Treatment - Role of Exercise Test and Long-Term ECG Monitoring.- Comparison of Clinical Significance of Programmed Stimulation Induced Ventricular Tachycardia and Fibrillation in Survivors of Acute Myocardial Infarction.- Evaluation of Survivors of Pre-Hospital Cardiac Arrest.- The Role of Electrophysiologic Testing in the Therapy of Patients with Unexplained Syncope.- Effects of Intravenous Amiodarone on Refractory Periods of the His Purkinje System.- Effect of Antiarrhythmic Drugs on Ventricular Late Potentials at Sinus Rhythm and at Constant Atrial Rate.- Drug-Induced Changes in the Duration of Ventricular Repolarization Evaluated by the Paced Endocardial Evoked Response.- b) Pacing.- Treatment of Ventricular Tachyarrhythmias-Pacing.- Treatment of Tachyarrhythmia by Implantable Devices: Patient Activated Pacemaker.- Automatic Implantable Devices for Termination of Tachycardia.- Programmable Implantable Automatic Pacemaker for Paroxysmal Tachycardia.- Centrifugal Geometric Scanning - an Alternative Concept in Pacemaker Treatment of Tachycardias.- Treatment of Ventricular Tachyarrhythmias with Implantable Automatic Cardioverter-Defibrillator.- Ventricular Fibrillation Detection by Intramyocardial Pressure Gradients.- Synchronized Low Energy Transvenous Cardioversion.- Efficacy of a “Ramp Up” Protocol for Transesophageal and Intraatrial Stimulation in Patients with Drug-Resistent Supraventricular Tachyarrhythmias.- Cardioversion of Atrial Tachyarrhythmias by Low-Energy Transvenous Technique.- Low Energy Transvenous Intracavitary Cardioversion of Tachycardias.- Internal “Microshock” for Arrhythmia Termination.- c) Intracardiac His Bundle Ablation and Surgery.- Electrophysiological Mapping as a Guide to Arrhythmia Surgery.- Intracardiac Cardioversion for Ablation of the Atrioventricular Conduction System in Patients with Drug Resistant Atrial Flutter.- Closed-Chest Ablation of His Bundle: A New Technique Using Suction Electrode Catheter and DC Shock.- Transvenous Ablation of Atrioventricular Conduction by High Energy Shock - A New Method of Tachycardia Control.- Creation of Experimental Atrioventricular Block Using DC Shock via a Percutaneous Transaortic Electrode Catheter.- Treatment of Ventricular Arrhythmias: Surgery.- Surgically Induced A-V Block by Means of Laser Beam: A Preliminary Feasibility Study.- Carotid Sinus Syndrome.- Long Term Comparison of DVI and VVI Pacing in Carotid Sinus Syndrome.- Effect of Carotid Sinus Massage (CSM) on Arterial Blood Pressure in Patients with Hypersensitive Carotid Sinus Reflex and Syncope.- Temporary Pacing.- Emergency Pacing Using the Fluid Column of a Cardiac Catheter.- Temporary Pacing in AMI Complicated by A-V Block: Hemodynamic Changes During VVI, DVI, VDTI Pacing with External Sorin BMMP 80 Pacer.- Survey of Pacing Activities.- Pacing in the World Today. World Survey on Cardiac Pacing for the Years 1979 to 1981.- Parametric Statistics for Performance Analysis.- Use Patterns of Permanent Cardiac Pacemakers.- Excessive Permanent Pacemaker Utilization in the State of Maryland. A Fallacy of the Hospital Record Face Sheet.- Authors’ Index.