The aim of the Clinical Approaches to Tachyarryhthmias series is to update the physician, cardiologist, and all those responsible for the the care of patients with cardiac arrhythmias. In this volume, one of the foremost research pioneers in the field provides a clear and comprehensively considered account of this syndrome's history, significance, and exciting current status. Readers will gain a better understanding of why the long QT syndrome has been the focus for numerous theories of arrhythmogenesis, why it has been the test bed for many antiarrhythmic treatments, and why it remains the paradigm for the diagnosis and management of cardiac arrhythmias.